Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

Ontology Browser

Term:
Parent Terms Term With Siblings Child Terms
(+)-alpha-pinene 
(+)-artemisinic acid  
(+)-pisiferic acid 
(+)-TACP 
(+-)-chartaceone B 
(-)-chuangxinmycin 
(-)-trans-carveol 
(1->3)-beta-D-glucan +   
(1->6)-beta-D-glucan 
(1-hydroxycyclopentyl)phenylacetic acid +  
(10Z)-tricosene 
(11Z)-icos-11-enoic acid +  
(11Z,14Z,17Z)-icosatrienoate 
(13E)-octadecenoic acid 
(13R)-S-cysteinyl-(14S)-hydroxy-(4Z,7Z,9E,11E,16Z,19Z)-docosahexaenoic acid 
(13R)-S-cysteinylglycinyl-(14S)-hydroxy-(4Z,7Z,9E,11E,16Z,19Z)-docosahexaenoic acid 
(13R)-S-glutathionyl-(14S)-hydroxy-(4Z,7Z,9E,11E,16Z,19Z)-docosahexaenoic acid 
(13S)-hydroxy-(14S,15S)-epoxy-(5Z,8Z,11Z)-icosatrienoic acid 
(14Z)-hexadecenoic acid 
(15Z)-tetracosenoate +  
(17Z)-hexacosenoic acid +  
(1S)-1,23,25-trihydroxy-24-oxocalciol 
(1S)-1,25-dihydroxy-24-oxocalciol 
(1S,2S,5S)-2-(4-glutaridylbenzyl)-5-phenylcyclohexan-1-ol 
(1s,4s)-prephenate(2-) 
(1S,9S)-9-amino-6,10-dioxooctahydro-6H-pyridazino[1,2-a][1,2]diazepine-1-carboxylic acid 
(2,3-diphenylcyclopropyl)methyl phenyl sulfoxide 
(2-\{[(4-aminophenyl)sulfonyl]amino\}-1,3-thiazol-5-yl)acetic acid 
(2-amino-4-hydroxy-7,8-dihydropteridin-6-yl)methyl diphosphate(3-) 
(2-aminoethyl)phosphonic acid +  
(2-ethoxyethoxy)acetic acid 
(2-hydroxyphenyl)acetate 
(2-hydroxyphenyl)acetic acid  
(2-nitrophenoxy)acetic acid 
(2-trans,6-cis)-dodeca-2,6-dienoyl-CoA 
(20R)-17alpha,20-dihydroxycholesterol 
(20R)-20-(carboxymethyl)oxypregn-4-en-3-one 
(20R,22R)-20,22-dihydroxycholesterol 
(20S)-20-(carboxymethyl)oxypregn-4-en-3-one 
(20S)-20-hydroxypregn-4-en-3-one  
(20S)-hydroxyvitamin D3 
(20S,23)-dihydroxyvitamin D3 
(20S,23,24)-trihydroxyvitamin D3 
(20S,23,25)-trihydroxyvitamin D3 
(20S,24R)-dihydroxyvitamin D3 
(20S,24S)-dihydroxyvitamin D3 
(23S)-23,25,26-trihydroxycalciol +  
(24E)-3alpha,7alpha-dihydroxy-5beta-cholest-24-en-26-oyl-CoA 
(24R)-24,25-dihydroxycalciol 
(24R)-24-[(alpha-L-ascarosyl)oxy]-2-methylpentacosanoic acid 
(24R,25R)-3alpha,7alpha,24-trihydroxy-5beta-cholestan-26-oyl-CoA 
(24S)-7alpha,24-dihydroxycholesterol 
(24S,25)-dihydroxycholesterol 
(24S,26)-dihydroxycholesterol 
(24Z),26-hydroxydesmosterol 
(25R)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-oyl-CoA(4-) 
(25R)-3beta,4beta-dihydroxycholest-5-en-26-oic acid 
(25R)-3beta-hydroxycholest-5-en-7-one-26-oic acid 
(25R)-7alpha,26-dihydroxycholest-4-en-3-one 
(25R)-cholest-5-ene-3beta,26-diol +   
(25R)-Delta(7)-dafachronic acid 
(25S)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestanoyl-CoA 
(25S)-3alpha-hydroxy-5alpha-cholest-7-en-26-oic acid 
(2E)-2-(hydroxyimino)isohexanoic acid 
(2E)-2-ethylidene-4-hydroxy-5-methyl-3(2H)-furanone 
(2E)-2-hexenyl isovalerate 
(2E)-3-(methoxycarbonyl)pent-2-enedioate(2-) 
(2R)-2-[(1R)-4-methylcyclohex-3-en-1-yl]propanoic acid 
(2R,3R)-2,3-dihydroxy-3-methylpentanoate 
(2R,3R,4S,5R)-5-(3,4-dichlorophenyl)-5'-methyl-1',3'-dioxo-4-\{[4-(1,2,3-thiadiazol-4-yl)phenyl]carbamoyl\}-1',3',4,5-tetrahydro-3H-spiro[furan-2,2'-indene]-3-carboxylic acid 
(2R,3S)-2-hydroxy-3-phenyl-4-oxoheptanedioic acid 
(2R,3S)-2-methyl-3-propyloxirane 
(2R,3S)-3-isopropylmalate(2-) 
(2S)-2-(4-\{[(1R,2S)-2-hydroxycyclopentyl]methyl\}phenyl)propanoic acid 
(2S)-2-(4-nitrophenyl)succinic acid 
(2S)-2-[(\{4-[2-(2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]phenyl\}carbonyl)amino]-4-(2H-tetrazol-5-yl)butanoic acid 
(2S)-2-ETHOXY-3-[4-(2-\{4-[(METHYLSULFONYL)OXY]PHENYL\}ETHOXY)PHENYL]PROPANOIC ACID 
(2S)-2-hydrazinyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid 
(2S)-2-isopropyl-3-oxosuccinate(2-) 
(2S)-3-methyl-2-((2R,3S)-3-[(methylsulfonyl)amino]-1-\{[2-(pyrrolidin-1-ylmethyl)-1,3-oxazol-4-yl]carbonyl\}pyrrolidin-2-yl)butanoic acid 
(2S,3R)-2-[(3S,6R)-3-amino-6-hydroxy-2-oxopiperidinyl]-3-hydroxybutanoic acid 
(2S,3R)-3-farnesyl-2,3-dihydro-2,N(alpha)-cyclo-L-tryptophan +  
(2S,3R)-3-geranyl-2,3-dihydro-2,N(alpha)-cyclo-L-tryptophan +  
(2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate 
(2S,3S)-2-hydroxy-3-phenyl-4-oxoheptanedioic acid 
(2S,3S)-3-hydroxy-2-methylbutanoyl-CoA(4-) 
(2xi)-D-gluco-heptonic acid 
(2Z,4E)-2-aminomuconate(2-) 
(2Z,4E)-2-ammoniomuconate(1-) 
(3,4-dihydroxyphenyl)acetate 
(3,4-dihydroxyphenyl)acetic acid +   
(3,5-dihydroxyphenyl)acetic acid 
(3beta)-3,27-dihydroxyolean-12-en-28-oic acid +  
(3E)-2,3,4-trimethylhex-3-enal 
(3E)-2,6-dimethyloct-3-ene 
(3R)-8-cyclopropyl-6-(morpholin-4-ylmethyl)-7-(1-naphthylmethyl)-5-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyridine-3-carboxylic acid 
(3R,5S)-1-pyrroline-3-hydroxy-5-carboxylic acid 
(3S)-1,2-diazinane-3-carboxylic acid 
(3S)-3-(4-chlorophenyl)-4-hydroxybutanoic acid 
(3S)-3-hydroxy-3-methylglutaryl-CoA 
(3S)-citramalyl-CoA(5-) 
(3Z,6Z)-dodecadienoyl-CoA 
(4-hydroxy-3-methoxyphenyl)acetaldehyde 
(4-hydroxy-3-nitrophenyl)acetic acid +  
(4-hydroxyphenyl)acetaldehyde 
(4-tert-Butyl-phenoxy)-acetic acid 
(4E)-7-methyldec-4-ene 
(4R)-N-(2,3-dihydroxytetracosanoyl)-4-hydroxysphinganine +  
(4S)-4,16-dihydroxyretinoic acid 
(4Z,7Z,10Z,13Z,16Z)-docosa-4,7,10,13,16-pentaenoic acid +   
(4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate +  
(5-hydroxyindol-3-yl)acetaldehyde  
(5-hydroxyindol-3-yl)acetate 
(5-hydroxyindol-3-yl)acetic acid +   
(5alpha)-androst-3-en-17-one 
(5S,6S)-dihydroxy-(7E,9E,11Z,14Z)-icosatetraenoic acid 
(5Z)-tetradecenoylcarnitine 
(5Z,8Z)-octadecadienoic acid 
(5Z,9E,12S,14Z)-8,11,12,20-tetrahydroxyicosa-5,9,14-trienoic acid 
(5Z,9E,12S,14Z)-8,11,12-trihydroxyicosa-5,9,14-trienoate 
(5Z,9E,14Z)-(8xi,11R,12S)-11,12-epoxy-8-hydroxyicosa-5,9,14-trienoate 
(6,8-difluoro-7-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)acetic acid 
(6-methoxy-2-naphthyl)acetic acid 
(6E,8Z)-5-oxooctadecadienoic acid 
(6R)-5,10-methenyltetrahydrofolate +  
(6R)-5,10-methylenetetrahydrofolate(2-) +  
(6S)-5,6,7,8-tetrahydrofolate(2-) 
(6S)-5-formyltetrahydrofolate(2-) 
(6S)-5-methyltetrahydrofolate(2-) +  
(7Z)-lobohedleolide 
(7Z,10Z,13Z,16Z,19Z)-docosapentaenoate +  
(7Z,10Z,13Z,16Z,19Z)-docosapentaenoic acid +  
(8E,10S,12Z,15Z)-10-hydroperoxyoctadeca-8,12,15-trienoic acid 
(9E)-10-nitrooctadecenoic acid 
(9E)-9-nitrooctadecenoic acid 
(9E,11E)-octadecadienoic acid +   
(\{6-[4-(methylsulfanyl)phenyl]thieno[3,2-d]pyrimidin-4-yl\}sulfanyl)acetic acid 
(alpha-D-mannosyl)2-beta-D-mannosyl-diacetylchitobiosyldiphosphodolichol 
(alpha-D-mannosyl)3-beta-D-mannosyldiacetylchitobiosyldiphosphodolichol 
(alpha-D-mannosyl)4-beta-D-mannosyldiacetylchitobiosyldiphosphodolichol 
(alpha-D-mannosyl)5-beta-D-mannosyldiacetylchitobiosyldiphosphodolichol 
(alpha-D-mannosyl)6-beta-D-mannosyl-diacetylchitobiosyldiphosphodolichol 
(alpha-D-mannosyl)7-beta-D-mannosyl-diacetylchitobiosyldiphosphodolichol 
(aminooxy)acetic acid  
(benzyloxy)acetic acid 
(dihydroxyphenyl)propanoic acid +   
(E)-2-(methoxyimino)-3-methylbutanoic acid 
(E)-2-dodecene +  
(E)-2-octene 
(E)-3-dodecene 
(E)-3-octene 
(E)-4-oxonon-2-enal 
(E)-dec-3-en-2-ol 
(E)-hexadec-2-enoyl-CoA(4-) 
(L-Seryl)adenylate 
(methylthio)acetic acid +  
(N(omega)-L-arginino)succinate(1-) 
(R)-2,3-dihydroxy-3-methylbutanoate 
(R)-2-hydroxy-4-(hydroxymethylphosphinyl)butyric acid 
(R)-2-hydroxy-4-methylpentanoate 
(R)-2-hydroxyglutaric acid 
(R)-3,4-dihydroxy-2-oxobutanoic acid 
(R)-3-(acetylthio)isobutyric acid 
(R)-3-[(R)-3-hydroxybutanoyloxy]butanoic acid 
(R)-3-hydroxy-2-oxo-4-phosphonooxybutanoic acid 
(R)-3-hydroxybutanoyl-CoA(4-) 
(R)-3-hydroxybutyrate +  
(R)-3-hydroxybutyric acid +  
(R)-3-hydroxylauric acid +  
(R)-4'-phosphonatopantothenate(3-) 
(R)-4'-phosphopantothenic acid 
(R)-5-diphosphomevalonic acid 
(R)-5-diphosphonatomevalonate(4-) 
(R)-5-phosphonatomevalonate(3-) 
(R)-acetoin  
(R)-adrenaline(1+) 
(R)-carnitine +   
(R)-icosanoylcarnitine 
(R)-lactaldehyde 
(R)-lactate +  
(R)-lactic acid +   
(R)-methylmalonyl-CoA(5-) 
(R)-mevalonate +  
(R)-noradrenaline +   
(R)-noradrenaline(1+) 
(R)-oleoylcarnitine 
(R)-oleoylcarnitine hydrochloride 
(R)-pantoate 
(R)-pantolactone 
(R)-pantothenate 
(R)-phenylacetylcarbinol +  
(R)-propane-1,2-diol 
(R)-S-lactoylglutathionate(1-) 
(R)-S-lactoylglutathione 
(R,R)-butane-2,3-diol 
(S)-(+)-4-(5-carboxypentyl)methamphetamine 
(S)-2,3-epoxysqualene 
(S)-2,4-dihydroxy-3-oxobutanoic acid 
(S)-2,5,5-trimethylthiazolidine-4-carboxylic acid 
(S)-2-acetyl-2-hydroxybutanoate 
(S)-2-acetyl-2-hydroxybutanoic acid 
(S)-2-chloropropanoic acid 
(S)-2-hydroxy-3-methylbutyrate 
(S)-2-hydroxy-3-methylbutyric acid 
(S)-3,4-dihydroxy-2-oxobutanoic acid 
(S)-3-aminoisobutyric acid 
(S)-3-hydroxybutanoyl-CoA(4-) 
(S)-3-hydroxydecanoyl-CoA 
(S)-3-hydroxyhexacosanoyl-CoA 
(S)-3-hydroxyhexanoyl-CoA 
(S)-3-hydroxyisobutyryl-CoA 
(S)-3-hydroxylauroyl-CoA 
(S)-3-hydroxyoctanoyl-CoA 
(S)-3-hydroxypalmitoyl-CoA 
(S)-3-hydroxytetradecanoyl-CoA 
(S)-3-methyl-2-oxovalerate 
(S)-3-sulfonatolactate(2-) 
(S)-4-amino-5-oxopentanoic acid 
(S)-alpha-hydroxyglutaric acid-gamma-lactone 
(S)-carnitinium 
(S)-dihydroorotate 
(S)-dihydroorotic acid 
(S)-DNPA 
(S)-lactaldehyde 
(S)-lactate +   
(S)-lactic acid +   
(S)-malate(2-) +  
(S)-methylmalonyl-CoA(5-) 
(S)-propane-1,2-diol +  
(Z)-2-methylureidoacrylic acid 
(Z)-2-octene 
(Z)-2-penten-1-ol 
(Z)-3-dodecene 
(Z)-3-octene 
(Z)-4-glutaramidostilbene 
(Z)-but-2-ene-1,2,3-tricarboxylate 
1,1'-bi(cyclohexyl)-1-carboxylic acid +   
1,1,3,3-tetramethylurea 
1,2,3,4-tetrachlorobutane 
1,2-dehydro-2,3-secofriedelan-3-oic acid 
1,2-di-[(6Z)-octadecenoyl]-sn-glycero-3-phosphocholine 
1,2-diacyl-sn-glycero-3-phosphocholine(1+) +   
1,2-dibutyryl-sn-glycero-3-phospho-(1'D-myo-inositol) 
1,2-dibutyryl-sn-glycero-3-phospho-(1'D-myo-inositol-5'-phosphate) 
1,2-dihydropyrene-2-carboxylic acid 
1,2-dioleoyl-sn-glycero-3-phospho-N,N-dimethylethanolamine 
1,2-dioleoyl-sn-glycero-3-phospho-N,N-dimethylethanolamine zwitterion 
1,2-dioleoyl-sn-glycero-3-phospho-N-methylethanolamine 
1,2-dioleoyl-sn-glycero-3-phospho-N-methylethanolamine zwitterion 
1,2-distearoylphosphatidylethanolamine zwitterion +  
1,3-thiazolemonocarboxylic acid +   
1,4'-bipiperidine-1'-carboxylic acid 
1,4-butanediammonium +  
1,4-dihydroxy-6-naphthoic acid 
1,4-dimethylcyclohexane +  
1,4-dithiothreitol +   
1,5-anhydro-D-glucitol 
1-(2,4-difluorophenyl)-6-fluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid +  
1-(2-carboxylatophenylamino)-1-deoxy-D-ribulose 5-phosphate(3-) 
1-(3,5-dichloro-2,6-dihydroxy-4-methoxyphenyl)hexan-1-one 
1-(3,5-dichloro-2,6-dihydroxy-4-methoxyphenyl)pentan-1-one 
1-(4-sulfophenyl)-3-carboxy-4-amino-5-oxopyrazole 
1-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine 
1-(5-phospho-beta-D-ribosyl)-5-[(5-phospho-beta-D-ribosylamino)methylideneamino]imidazole-4-carboxamide(4-) 
1-(5-phospho-D-ribosyl)-ATP(6-) +  
1-(5-phosphonato-beta-D-ribosyl)-5'-AMP(4-) 
1-(sn-glycero-3-O-phosphonato)-1D-myo-inositol 
1-[(10Z,13Z,16Z)-docosatrienoyl]-2-[(9Z,12Z)-hexadecadienoyl]-sn-glycero-3-phospho-1D-myo-inositol 
1-[(10Z,13Z,16Z)-docosatrienoyl]-2-hexadecanoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(10Z,13Z,16Z)-docosatrienoyl]-2-linoleoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(13Z,16Z)-docosadienoyl]-2-hexadecanoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(13Z,16Z)-docosadienoyl]-2-linoleoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(1Z,9Z)-octadecadienyl]-sn-glycero-3-phosphocholine 
1-[(3-carboxypropyl)amino]-1-deoxy-beta-D-fructofuranose 
1-[(8Z,11Z,14Z,17Z)-icosatetraenoyl]-2-[(11Z)-icosenoyl]-sn-glycero-3-phospho-1D-myo-inositol 
1-[(8Z,11Z,14Z,17Z)-icosatetraenoyl]-2-[(11Z)-octadecenoyl]-sn-glycero-3-phospho-1D-myo-inositol 
1-[(8Z,11Z,14Z,17Z)-icosatetraenoyl]-2-icosanoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(8Z,11Z,14Z,17Z)-icosatetraenoyl]-2-octadecanoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-[(9Z)-hexadecenoyl]-sn-glycero-3-phosphocholine 
1-acyl-sn-glycerol 3-phosphate(2-) +  
1-acylglycerone 3-phosphate(2-) +  
1-alkyl-2-acetyl-sn-glycerol +  
1-alkyl-2-acetyl-sn-glycerol 3-phosphate(2-) 
1-alkyl-2-acyl-sn-glycero-3-phosphoethanolamine +  
1-alkyl-2-acyl-sn-glycerol +  
1-alkyl-sn-glycerol 3-phosphate(2-) +  
1-alkylglycerone 3-phosphate +  
1-alkylglycerone 3-phosphate(2-) +  
1-amino-15-oxo-4,7,10-trioxa-14-azaoctadecan-18-oic acid 
1-aminocyclopropanecarboxylic acid +  
1-arachidonoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-arachidonoyl-sn-glycero-3-phosphoethanolamine 
1-bromo-2-propanol 
1-butyryl-2-oleoyl-sn-glycerol 
1-C-(indol-3-yl)glycerol 3-phosphate(2-) 
1-chlorobutan-2-ol 
1-docosene 
1-dodecene 
1-ethyl-2-propylcyclohexane 
1-hexadecanoyl-2-(9-oxononanoyl)-sn-glycero-3-phosphocholine 
1-hexadecanoyl-sn-glycero-3-phospho-D-myo-inositol 
1-hexadecanoyl-sn-glycero-3-phosphoethanolamine 
1-Hydroxyibuprofen 
1-icosapentaenoyl-sn-glycero-3-phosphocholine 
1-iodo-2-methylundecane 
1-linoleoyl-sn-glycero-3-phosphoethanolamine 
1-linoleoyl-sn-glycero-3-phosphoethanolamine zwitterion 
1-methyl-4-imidazoleacetic acid 
1-methyl-pyrazole-3-carboxylic acid 
1-methyl-pyrazole-4-carboxylic acid 
1-methyl-pyrazole-5-carboxylic acid +  
1-methyladenosine 
1-methylimidazole-4-acetaldehyde 
1-methylnicotinamide +   
1-methylpyrrolinium 
1-O-all-trans-retinoyl-beta-glucuronic acid 
1-octadec-9-enoylglycero-3-phosphate  
1-octadecylglycero-3-phosphocholine 
1-oleoyl-2-arachidonoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-oleoyl-sn-glycero-3-phosphoethanolamine 
1-palmitoleoyl-2-palmitoyl-sn-glycero-3-phosphocholine 
1-palmitoyl-2-butanoyl-sn-glycero-3-phosphocholine 
1-pentadecanoyl-2-[(5Z,8Z,11Z,14Z)-eicosatetraenoyl]-sn-glycero-3-phosphocholine 
1-pentadecyl-2-acetyl-sn-glycero-3-phosphocholine 
1-penten-3-one  
1-phenylethylamine +  
1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate(7-) +  
1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate(5-) +  
1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate(5-) +  
1-phosphatidyl-1D-myo-inositol 3-phosphate(3-) +  
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate +  
1-phosphatidyl-1D-myo-inositol 4-phosphate(3-) +  
1-phosphatidyl-1D-myo-inositol 5-phosphate(3-) +  
1-phosphatidyl-1D-myo-inositol(1-) +  
1-piperideine-2-carboxylate 
1-piperideine-6-carboxylate +  
1-piperideine-6-carboxylic acid +   
1-pyrroline-2-carboxylate 
1-pyrroline-3-hydroxy-5-carboxylate 
1-pyrroline-5-carboxylate +  
1-pyrrolinecarboxylic acid +  
1-pyrrolinium +  
1-stearoyl-2-arachidonoyl-sn-glycero-3-phosphoethanolamine 
1-stearoyl-sn-glycero-3-phospho-1D-myo-inositol 
1-stearoyl-sn-glycero-3-phosphoethanolamine 
10-formyltetrahydrofolate(2-) +  
10-hydroxypalmitic acid 
10-nonadecenoate 
10-nonadecenoic acid +  
10-PAHSA 
10-PAHSA(1-) 
11-cis-retinal +  
11-cis-retinol +  
11-cis-retinyl palmitate 
11-dehydro-thromboxane B2  
11-dehydrocorticosterone  
11-deoxycorticosterone +   
11-deoxycortisol  
11-epi-prostaglandin F2alpha +  
11-epi-prostaglandin F2alpha(1-) 
11-hydroxy-N-desmethyl 12-keto pretubulysin D 
11-nitro-1-undecene 
11-oxo-ETE +  
11-oxotestosterone 
11-PAHSA 
11-PAHSA(1-) 
11beta-hydroxyandrost-4-ene-3,17-dione 
11beta-hydroxyprogesterone 
11beta-PGE2 
11H-benzo[a]fluoren-11-ylacetic acid 
12(S)-HETE 
12(S)-HPETE(1-) 
12-(octadecanoyloxy)octadecanoic acid 
12-[(9Z)-hexadecenoyloxy]octadecanoic acid 
12-[(9Z)-octadecenoyloxy]octadecanoic acid 
12-ethyl-8-isobutyl-3-vinylbacteriochlorophyllide d 
12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d 
12-HETE +  
12-HETE-GABA 
12-hydroxylauric acid +   
12-PAHSA 
12-PAHSA(1-) 
12alpha-hydroxy-3-oxo-5beta-cholan-24-oic acid +  
13(S)-HPODE +  
13(S)-HPODE(1-) 
13,14-dihydro-15-oxolipoxin A4 
13,14-dihydro-15-oxolipoxin A4(1-) 
13,14-dihydrolipoxin A4 
13,14-dihydrolipoxin A4(1-) 
13-(octadecanoyloxy)octadecanoic acid 
13-[(9Z)-hexadecenoyloxy]octadecanoic acid 
13-[(9Z)-octadecenoyloxy]octadecanoic acid 
13-cis-retinal  
13-cis-retinol +  
13-hydroxy-(14R,15S)-epoxy-(5Z,8Z,11Z)-icosatrienoic acid 
13-hydroxy-alpha-tocopherol 
13-PAHSA 
13-PAHSA(1-) 
14-demethyllanosterol +   
14-hydroxyplatensic acid +  
15(S)-HETE 
15(S)-HPETE(1-) 
15-dehydro-prostaglandin E1(1-) 
15-dehydroprostaglandin A1 
15-HETE-GABA 
15-ketoprostaglandin F1alpha(1-) 
15-oxo-ETE +   
16,16-dimethylprostaglandin E2  
16-alpha-D-mannopyranosyloxyisopimar-7-en-19-oic acid 
16-feruloyloxypalmitic acid 
16-sinapoyloxypalmitic acid 
16alpha-hydroxydehydroepiandrosterone 
16alpha-hydroxypregnenolone 
17-(4-hydroxyphenyl)heptadecanoic acid +  
17-dimethylaminolobohedleolide 
17-hydroxyprogesterone 3-O-(carboxymethyl)oxime 
17-phenyl-18,19,20-trinor-prostaglandin D2 
17-phenyl-18,19,20-trinor-prostaglandin E2 
17alpha-hydroxypregnenolone +   
17alpha-hydroxyprogesterone  
17beta-estradiol +   
17beta-estradiol 3-glucosiduronic acid  
17beta-estradiol 3-O-carboxymethyl ether 
17beta-hydroxy-5alpha-androstan-3-one +   
17beta-hydroxy-5beta-estran-3-one 
18-hydroxycorticosterone 
19-(4-hydroxyphenyl)nonadecanoic acid +  
1alpha,23(S),25-trihydroxyvitamin D3 
1alpha,2beta,25-trihydroxy vitamin D3 
1D-myo-inositol 1,3,4,5-tetrakisphosphate(8-) 
1D-myo-inositol 1,3,4-trisphosphate(6-) 
1D-myo-inositol 1,4,5,6-tetrakisphosphate(8-) 
1D-myo-inositol 1,4,5-trisphosphate(6-) 
1D-myo-inositol 1,4-bisphosphate(4-) 
1D-myo-inositol 1-phosphate  
1D-myo-inositol 1-phosphate(2-) 
1D-myo-inositol 3,4,5,6-tetrakisphosphate(8-) 
1D-myo-inositol 3,4-bisphosphate 
1D-myo-inositol 3-phosphate(2-) 
1D-myo-inositol 4-phosphate(2-) 
2',3'-cyclic AMP(1-) 
2',3'-cyclic UMP(1-) 
2',4',5',7'-tetrabromofluorescein 
2'-deoxyadenosine +   
2'-deoxyadenosine 5'-monophosphate(2-) +  
2'-deoxycytidine +   
2'-deoxycytosine 5'-monophosphate(2-) +  
2'-deoxyguanosine +   
2'-deoxyguanosine 5'-monophosphate(2-) +  
2'-deoxyinosine 
2'-deoxyinosine 5'-phosphate(2-) +  
2'-deoxyinosine-5'-diphosphate 
2'-deoxyinosine-5'-monophosphate 
2'-deoxyuridine +  
2'-phospho-cyclic ADP-ribose 
2,2,3,3-tetramethylcyclopropanecarboxylic acid +   
2,2,4-trihydroxybutanoic acid 
2,2-dihydroxy-3-methylbutanoate 
2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoic acid 
2,3,3-trimethylpentane 
2,3,4,5-tetranor-thromboxane B1 
2,3,4-triacetamido-2,3,4-trideoxy-L-arabinose 
2,3,4-trihydroxybenzoic acid 
2,3,5,8-tetramethyldecane 
2,3,5-trimethylhexane 
2,3-bisphosphoglyceric acid +   
2,3-bisphosphonato-D-glycerate(5-) 
2,3-dihydroxy-3-methylbutanoic acid +  
2,3-dihydroxybutanoic acid +  
2,3-diketogulonate 
2,3-dinor-prostaglandin E2 
2,3-dinor-TXB1 
2,3-epoxymenatetrenone 
2,4,4-trimethylpentane-1,3-diyl bis(2-methylpropanoate) 
2,4,6-trihydroxybenzoic acid 
2,4,6-trimethyldecane 
2,4-DB +  
2,4-diaminobutyric acid +   
2,4-Dichlorophenoxyaceticacid 
2,4-dihydroxybenzoic acid 
2,4-dimethyl-1-heptene 
2,4-dimethylfuran 
2,4-dimethylhexane 
2,4-dimethylpentan-3-amine 
2,5,5-trimethyl-1,3-thiazolidine-4-carboxylic acid 
2,5-diamino-4-hydroxy-6-(5-phosphonatoribosylamino)pyrimidine(3-) 
2,5-diamino-6-(5-phosphono)ribitylamino-4(3H)-pyrimidinone 
2,5-diamino-6-ribosylamino-4(3H)pyrimidinone 5'-triphosphate 
2,5-dihydroxybenzaldehyde  
2,5-dihydroxybenzoate 
2,5-dihydroxybenzoic acid +   
2,5-dioxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-3-carboxylic acid 
2,6,10,14-tetramethylheptadecane 
2,6,10,15-tetramethylheptadecane 
2,6,8-trimethyldecane 
2,6-diamino-7-hydroxy-azelaic acid 
2,6-dichloroisonicotinic acid 
2,6-dihydroxybenzoic acid  
2,7,10-trimethyldodecane 
2-(2,4-dichlorophenoxy)acetic acid [[amino(2-pyridinyl)methylidene]amino] ester 
2-(2,4-dichlorophenoxy)acetic acid octan-2-yl ester 
2-(2,4-dichlorophenoxy)propanoic acid +  
2-(2,5-dihydroxy-4-methoxyphenyl)propanoic acid 
2-(2-amino-1,3-thiazol-4-yl)-2-(1-carboxy-1-methylethoxyimino)acetylaminomethylboronic acid 
2-(2-carboxy-2-methylpropyl)-4,6-dimethylbenzoic acid 
2-(2-carboxyethyl)-4-methyl-5-propylfuran-3-carboxylic acid 
2-(2-cyanophenoxy)acetic acid [2-(2,5-dimethyl-1-prop-2-enyl-3-pyrrolyl)-2-oxoethyl] ester 
2-(2-hydroxyphenyl)-4,5-dihydrothiazole-4-carboxylic acid +  
2-(2-methoxyethoxy)propanoic acid 
2-(3,5-dichlorophenylcarbamoyl)-1,2-dimethylcyclopropane-1-carboxylic acid 
2-(3,5-dimethylphenoxy)acetic acid [3-(1H-benzimidazol-2-yl)-3-cyano-2-oxopropyl] ester 
2-(3-amino-3-carboxypropyl)-L-histidine +  
2-(3-methylphenoxy)acetic acid (1-methyl-4-piperidinyl) ester 
2-(4-\{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy\}phenoxy)propanoic acid +  
2-(4-\{[5-(trifluoromethyl)pyridin-2-yl]oxy\}phenoxy)propanoic acid +   
2-(4-bromophenoxy)acetic acid (5-phenyl-1,3,4-oxadiazol-2-yl)methyl ester 
2-(4-chloro-2-methylphenoxy)propanoic acid +   
2-(4-chlorophenoxy)butanoic acid (8-methyl-8-azabicyclo[3.2.1]octan-3-yl) ester 
2-(4-chlorophenyl)-3-methylbutyric acid +   
2-(4-cyclohexyl-1-naphthyl)propanoic acid +  
2-(4-ethylphenoxy)acetic acid (4-nitrophenyl) ester 
2-(4-formylphenoxy)acetic acid [2-(4-methylanilino)-4-thiazolyl]methyl ester 
2-(4-hydroxyphenylazo)benzoic acid 
2-(4-methoxyphenyl)propan-2-ol 
2-(4-methyl-1-piperazinyl)ethanamine 
2-(hydroxymethyl)-4-oxobutanoic acid 
2-[(1S)-1-aminoethyl]-1-carboxymethyl-5-hydroxy-4-methylimidazole 
2-[(2,6-dichlorobenzoyl)oxy]-3-[2-(2,6-dichlorophenyl)-6-quinolyl]propanoic acid 
2-[(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy]propanoic acid +  
2-[2,6-dichloro-4-[[6-ethoxycarbonyl-5-(3-methoxyphenyl)-7-methyl-3-oxo-5H-thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]phenoxy]acetic acid 
2-[2-[[4-oxo-3-[(6-oxo-1-cyclohexa-2,4-dienylidene)methylamino]-2-sulfanylidene-5-thiazolidinylidene]methyl]phenoxy]acetic acid 
2-[2-bromo-4-(hydroxymethyl)-6-methoxyphenoxy]acetic acid 
2-[2-chloro-4-[[5-(2-chlorophenyl)-6-ethoxycarbonyl-7-methyl-3-oxo-5H-thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]-6-methoxyphenoxy]acetic acid 
2-[2-chloro-6-ethoxy-4-[(3-methyl-5-oxo-1-phenyl-4-pyrazolylidene)methyl]phenoxy]acetic acid methyl ester 
2-[2-methoxy-4-[2-(8-nitro-2-quinolinyl)ethenyl]phenoxy]acetic acid 
2-[3-[1-[[2-(3,4-dichlorophenyl)-1-oxoethyl]-methylamino]-2-(1-pyrrolidinyl)ethyl]phenoxy]acetic acid 
2-[3-[[6-[anilino(oxo)methyl]-5-(4-ethoxyphenyl)-7-methyl-3-oxo-5H-thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]phenoxy]acetic acid 
2-[3-carboxylato-3-(methylammonio)propyl]-L-histidine dizwitterion +  
2-[4-(1,3-benzothiazol-2-yl)-2-bromo-6-methoxyphenoxy]acetic acid 
2-[4-(2,4-dichlorophenoxy)phenoxy]propanoic acid +   
2-[4-(2,5-diphenyl-3,4-dihydropyrazol-3-yl)-2-methoxyphenoxy]acetic acid 
2-[4-(cyclohexylsulfamoyl)-2-methylphenoxy]acetic acid 
2-[4-(pyridin-4-ylmethylsulfamoyl)phenoxy]acetic acid methyl ester 
2-[4-[(2R)-2-[[(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]amino]propyl]phenoxy]acetic acid 
2-[4-[(4-fluorophenyl)sulfonyl-methylamino]phenoxy]acetic acid 
2-[4-[2-(1-cyclohexenyl)ethylsulfamoyl]-2-methylphenoxy]acetic acid methyl ester 
2-[4-[2-[[(2R)-2-hydroxy-3-phenoxypropyl]amino]ethoxy]phenoxy]acetic acid 
2-[4-[3-[3-hydroxy-4-(2-oxoethyl)-2-propylphenoxy]propoxy]phenoxy]acetic acid 
2-[4-[[3-[2-(1H-indol-3-yl)ethyl]-2-(4-methoxyphenyl)imino-4-oxo-5-thiazolidinylidene]methyl]phenoxy]acetic acid 
2-[4-[[4-(2-methoxy-2-oxoethoxy)phenyl]methylidene]-3-methyl-5-oxo-1-pyrazolyl]-4-methyl-5-thiazolecarboxylic acid ethyl ester 
2-[4-[[5-(4-chlorophenyl)-6-ethoxycarbonyl-7-methyl-3-oxo-5H-thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]phenoxy]acetic acid 
2-[4-[[6-ethoxycarbonyl-7-methyl-5-[4-(methylthio)phenyl]-3-oxo-5H-thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]phenoxy]acetic acid 
2-[4-chloro-2-[3-(4-methoxyphenyl)-4-oxo-1,2-dihydroquinazolin-2-yl]phenoxy]acetic acid methyl ester 
2-[4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]quinoline-3-carboxylic acid +  
2-[5-bromo-2-ethoxy-4-(hydroxymethyl)phenoxy]acetic acid 
2-\{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy\}propanoic acid +   
2-\{5-amino-4-[cyano(imino)methyl]-1H-imidazol-1-yl\}-3-phenylpropanoic acid 
2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
2-acetamido-2-deoxy-D-glucopyranose 1-phosphate +  
2-acetamido-5-oxopentanoate 
2-acetyllactate 
2-acetyllactic acid +  
2-amino-2-hydroxybutanoic acid 
2-amino-2-methylbutanoic acid 
2-amino-3-(3-oxoprop-1-enyl)but-2-enedioate +  
2-amino-3-(3-oxoprop-1-enyl)but-2-enedioic acid +  
2-amino-3-oxoadipic acid 
2-amino-3-oxobutanoic acid +  
2-amino-3-phosphonopropanoic acid 
2-amino-6-(hydroxymethyl)-7,8-dihydropteridin-4-ol 
2-aminoacrylic acid +  
2-Aminobenzylstatine 
2-aminoethanesulfonate +  
2-aminomuconate 6-semialdehyde(1-) 
2-aminooctanoic acid 
2-aminooctanoic acid zwitterion 
2-ammonio-2-deoxy-D-glucopyranose +  
2-ammonio-2-deoxy-D-glucopyranose 6-phosphate(1-) +  
2-arachidonoylglycerol +   
2-arylpropionic acid +   
2-Benzylmalate 
2-Benzylmalic acid 
2-butyl-1-octanol +  
2-butylfuran 
2-carboxy-4-methyl-5-[(2-phosphonooxy)ethylidene]-2,5-dihydrothiazole +  
2-chloro-3-\{2-chloro-5-[4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]-4-fluorophenyl\}propanoic acid +  
2-cis,6-trans,10-trans-geranylgeranyl diphosphate 
2-cyclopentyl-4-[5-(3-methylphenyl)furo[2,3-b]pyridin-3-yl]benzoic acid 
2-decaprenyl-6-methoxy-1,4-benzoquinone 
2-decaprenyl-6-methoxy-3-methyl-1,4-benzoquinone 
2-decaprenyl-6-methoxyphenol 
2-dehydro-L-gluconic acid 
2-dehydropantoate 
2-deoxy-D-ribofuranose 
2-deoxy-D-ribofuranose 1-phosphate(2-) 
2-deoxy-D-ribonate 
2-deoxy-D-ribonic acid 
2-deoxy-D-ribose +  
2-deoxy-D-ribose 5-phosphate(2-) 
2-ethyl-2-hexenal +  
2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone 
2-ethylhydracrylate 
2-ethylhydracrylic acid 
2-formamido-N(1)-(5-O-phosphonato-D-ribosyl)acetamidine +  
2-Formaminobenzoylacetate 
2-furoate 
2-furoic acid +   
2-heptyl-3-hydroxy-4-quinolone 
2-heptyl-4-hydroxyquinoline 
2-heptyl-4-quinolone 
2-hexaprenyl-6-methoxy-1,4-benzoquinone 
2-hexaprenyl-6-methoxy-3-methyl-1,4-benzoquinone 
2-hexaprenyl-6-methoxyphenol 
2-hexylfuran 
2-hydroxy-17beta-estradiol +   
2-hydroxy-2-(4-hydroxybenzyl)succinic acid 
2-hydroxy-2-phenylcyclohexanecarboxylic acid +  
2-hydroxy-2H-benzo[h]chromene-2-carboxylic acid 
2-Hydroxy-3-(2-hydroxyphenyl)propanoic acid 
2-hydroxy-3-(3,4,5-trimethoxyphenyl)propanoic acid 
2-Hydroxy-3-(4-methoxyphenyl)propanoic acid 
2-hydroxy-3-[4-hydroxy-3-(3-methylbut-2-en-1-yl)phenyl]propanoic acid 
2-hydroxy-3-methylbutyrate 
2-hydroxy-3-methylbutyric acid +  
2-hydroxy-3-oxobutyl phosphate +  
2-hydroxyacrylic acid 
2-hydroxybutyrate +  
2-hydroxybutyric acid +  
2-hydroxyestrone +   
2-hydroxyglutaramic acid 
2-hydroxyhexadecanal +  
2-hydroxyhexadecanoate +  
2-hydroxyhexadecanoic acid +  
2-hydroxyoctadecanoate +  
2-hydroxyoctadecanoic acid +  
2-hydroxyphytanoyl-CoA(4-) 
2-Imidazolidone-4-carboxylic acid 
2-iminobutanoic acid 
2-iminopropionic acid 
2-isopropyl-5-methyl-1-heptanol 
2-isopropylaminoethylamine 
2-isopropylmalate(2-) +  
2-isopropylmaleate(2-) 
2-L-arginyl-1,3-benzothiazole-6-carboxylic acid 
2-linoleoyl-sn-glycero-3-phosphoethanolamine 
2-methoxy-17beta-estradiol +   
2-Methoxy-3-(4-methoxyphenyl)propanoic acid 
2-methoxyestrone +   
2-methyl-1,3-thiazolidine-2-carboxamide 
2-methyl-1-pentene 
2-methyl-2-[4-(1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy]propanoic acid +   
2-methyl-3-[(2E)-5-carboxy-3-methylpent-2-enyl]-1,4-naphthoquinone 
2-methyl-3-ketovaleric acid 
2-methyl-3-oxopropanoate +  
2-methyl-3-sulfanylbutan-1-ol 
2-methyl-4-chlorophenoxybutyric acid  
2-methyl-5-propionylfuran 
2-methylacetoacetic acid +  
2-methylacetoacetyl-CoA(4-) 
2-methylbutan-1-ol +  
2-methylbutan-2-amine 
2-methylbutanal +  
2-methylbutanoyl-CoA(4-) +  
2-methylbutyl acetate 
2-methylbutyric acid +   
2-methylbutyrylcarnitine +  
2-methylcitrate(3-) +  
2-methylcrotonoyl-CoA(4-) 
2-methylerythritol 
2-methylhexenoyl-CoA 
2-methylquinoxaline-6-carboxylic acid 
2-methyltridecane 
2-methylvaleric acid 
2-O-(6-phosphono-alpha-D-mannosyl)-D-glyceric acid 
2-O-sulfo-beta-L-threo-hex-4-enopyranuronosyl-(1->4)-beta-D-GlcpNS 
2-octene +  
2-oxindole-3-acetic acid +  
2-oxoadipate(2-) 
2-oxobutanoate 
2-oxobutanoic acid +   
2-oxoglutaramate +  
2-oxoglutarate(2-) 
2-oxopentanoic acid 
2-phenylbutyric acid 
2-phenylethanaminium 
2-phenylethanol +   
2-phenylethylamine +   
2-Phenylpropionate 
2-Phenylsuccinic acid 
2-phospho-D-glyceric acid 
2-phosphonato-D-glycerate(3-) 
2-phosphonatoglycolate(3-) 
2-stearoyl-sn-glycero-3-phosphocholine 
2-tetradecanoyl-sn-glycero-3-phosphocholine 
2-thienylacetic acid +  
2-trans,6-trans,10-trans-geranylgeranyl diphosphate(3-) 
2-trans,6-trans-farnesyl diphosphate(3-) 
20(S),25-dihydroxyvitamin D3 
20-HETE +   
20-hydroxy-leukotriene B4 
20-hydroxy-leukotriene B4(1-) 
20-hydroxy-leukotriene E4(1-) 
20-hydroxycholesterol  
20beta-dihydroprednisolone 
23(S),25-dihydroxy-24-oxovitamin D3 
24,25-dihydrolanosterol +   
25-hydroxy-3-epidehydrotumulosic acid 
25-hydroxycholesterol  
26-hydroxycholesterol +   
2beta-hydroxytestosterone 
2H-imidazol-4-ylacetic acid 
3',5'-cyclic AMP +   
3',5'-cyclic AMP(1-) 
3',5'-cyclic CMP 
3',5'-cyclic CMP(1-) 
3',5'-cyclic dAMP 
3',5'-cyclic dTMP 
3',5'-cyclic GMP +   
3',5'-cyclic GMP(1-) +  
3',5'-cyclic IMP 
3',5'-cyclic UMP  
3'-AMP 
3'-AMP(2-) 
3'-dephospho-CoA 
3'-dephospho-CoA(2-) 
3'-hydroxy-4'-methoxydiclofenac 
3'-hydroxydiclofenac 
3'-Methoxyfukiic acid 
3'-phosphonato-5'-adenylyl sulfate(4-) 
3'-UMP(2-) 
3,13,19-trimethyltricosanoic acid 
3,17-dioxoandrost-4-en-19-al 
3,3',5'-triiodothyronine +   
3,3',5,5'-tetraiodothyroacetic acid  
3,3',5-triiodo-L-thyronine +   
3,3',5-triiodo-L-thyronine sulfate 
3,3',5-triiodo-L-thyronine zwitterion +  
3,3'-diiodo-L-thyronine +  
3,4,5-trimethoxydihydrocinnamic acid 
3,4-dihydro-7-methoxy-2-methylene-3-oxo-2H-1,4-benzoxazine-5-carboxylic acid 
3,4-dihydroxybutyric acid 
3,4-dihydroxymandelaldehyde +  
3,4-dihydroxymandelate +  
3,4-dihydroxymandelic acid  
3,4-dihydroxyphenylacetaldehyde  
3,4-secoisopimara-4(18),7,15-triene-3-oic acid 
3,5-Dibromo-tyrosine 
3,5-diiodo-L-tyrosinate(1-) 
3,5-diiodo-L-tyrosine +  
3,5-diiodothyropropionic acid 
3,5-dimethylbenzaldehyde 
3,5-dimethyloctane 
3,5-dioxooctanedioic acid 
3,7,11-trimethyldodecan-1-ol 
3,7-dimethyl-3-octanol 
3,8-dimethylundecane 
3-(10-methyl-9-anthryl)propanoic acid 
3-(1H-indol-3-yl)propanoate 
3-(1H-indol-3-yl)propanoic acid  
3-(2,4,5-Trimethoxy-phenyl)-propionic acid 
3-(2,4-dihydroxy-5-methoxyphenyl)propanoic acid 
3-(2,4-dihydroxyphenyl)propanoic acid 
3-(2,5-dimethoxyphenyl)propanoic acid 
3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylic acid +   
3-(2-formyl-3-hydroxyphenyl)propionic acid 
3-(2-hydroxyphenyl)propanoic acid 
3-(2-methoxyethoxy)propanoic acid 
3-(2-Methoxyphenyl)propanoic acid 
3-(2-methylpropyl)cyclohexene 
3-(3,4,5-trihydroxyphenyl)propanoic acid 
3-(3,4-dihydroxyphenyl)-2-(sulfooxy)propanoic acid 
3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid 
3-(3,4-Dihydroxyphenyl)-2-methoxypropionic acid 
3-(3,4-Dihydroxyphenyl)-2-methylpropionic acid 
3-(3,4-dimethoxyphenyl)propanoic acid 
3-(3,5-dichloro-4-hydroxyphenyl)propanoic acid 
3-(3,5-dihydroxyphenyl)propionic acid 
3-(3-Chloro-4-hydroxyphenyl)propionic acid 
3-(3-hydroxy-2-(hydroxymethyl)phenyl)propanoic acid 
3-(3-hydroxy-5-methoxyphenyl)propanoic acid 
3-(3-Hydroxyphenyl)-2-methyllactic acid 
3-(3-Hydroxyphenyl)-2-methylpropionic acid 
3-(3-hydroxyphenyl)propanoic acid +  
3-(3-sulfooxyphenyl)propanoic acid 
3-(4'-acetoxyphenyl)propionic acid 
3-(4-deoxy-beta-D-gluc-4-enosyluronic acid)-N-acetyl-D-glucosamine 
3-(4-hydroxy-3,5-diiodophenyl)propanoic acid 
3-(4-Hydroxy-3-methoxyphenyl)-2-methyllactic acid 
3-(4-Hydroxy-3-methoxyphenyl)-2-methylpropionic acid 
3-(4-hydroxyphenyl)lactate +  
3-(4-hydroxyphenyl)lactic acid +  
3-(4-hydroxyphenyl)pyruvate 
3-(4-oxo-4,5-dihydro-1H-imidazol-5-yl)propanoic acid 
3-(cis-5,6-dihydroxycyclohexa-1,3-dienyl)propanoic acid +  
3-(imidazol-4-yl)-2-oxopropyl phosphate(2-) 
3-(imidazol-5-yl)lactic acid +  
3-(imidazol-5-yl)pyruvic acid 
3-(indol-3-yl)-2-oxobutyric acid +  
3-(indol-3-yl)lactate 
3-(indol-3-yl)lactic acid  
3-(indol-3-yl)pyruvate 
3-(indol-3-yl)pyruvic acid  
3-(methylthio)propionate 
3-(p-nitrophenyl)propanoic acid 
3-(progesterone-4-yl)thiopropionic acid 
3-(progesterone-7alpha-yl)thiopropionic acid 
3-(pyrimidin-2-yl)propanoic acid 
3-(trimethylsilyl)propionic acid 
3-[(2-aminoethyl)sulfanyl]-6-ethyl-7-oxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
3-[(2-aminoethyl)sulfanyl]-6-methyl-7-oxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
3-[(2-aminoethyl)sulfanyl]-7-oxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
3-[(\{4-[4-(\{[1-(2-chlorophenyl)ethoxy]carbonyl\}amino)-3-methyl-1,2-oxazol-5-yl]phenyl\}methyl)sulfanyl]propanoic acid +  
3-[2-(trifluoromethyl)phenyl]propanoic acid +  
3-[3-(tert-butylsulfanyl)-1-(4-chlorobenzyl)-5-(propan-2-yl)-1H-indol-2-yl]-2,2-dimethylpropanoic acid  
3-[4-(sulfooxy)phenyl]propanoic acid 
3-[4-[[4-(aminomethyl)cyclohexyl]-oxomethoxy]phenyl]propanoic acid 
3-\{3-[(3,3-dimethyloxiran-2-yl)methyl]-4-hydroxyphenyl\}-2-hydroxypropanoic acid 
3-amino-4-iodopyridine 
3-amino-N-(3-amino-3-iminopropyl)cyclopentane-1-carboxamide 
3-aminoadipic acid +  
3-aminobutanoic acid +  
3-aminopiperidine-2-one 
3-ammoniopropanal 
3-Benzylmalic acid 
3-beta-O-(E)-coumaroyl-D:C-friedooleana-7,9(11)-dien-29-oic acid 
3-Bromo-tyrosine 
3-butynoic acid 
3-Carbamoyl-2-phenylpropionic acid 
3-carboxy-1-hydroxypropylthiamine diphosphate 
3-carboxy-4-methyl-5-propyl-2-furanpropanoate 
3-chloro-L-tyrosine 
3-chloroacrylic acid +  
3-cyano-L-alanine +  
3-cyclopentylpropionic acid +   
3-decaprenyl-4,5-dihydroxybenzoic acid +  
3-decaprenyl-4-hydroxy-5-methoxybenzoic acid 
3-dehydro-4-methylzymosterol +  
3-dehydro-L-gulonate 
3-dehydrocarnitine +   
3-dehydrocarnitinium 
3-dehydroquinate 
3-dehydroshikimate 
3-dehydrosphinganinium(1+) +  
3-demethylubiquinone-10 
3-demethylubiquinone-6 
3-deoxy-D-arabino-hexonic acid 
3-deoxychenodeoxycholic acid 
3-disulfanyl-L-alanine +  
3-ethylpentane 
3-fucosyllactose +  
3-furoic acid +  
3-hexaprenyl-4,5-dihydroxybenzoate 
3-hexaprenyl-4-hydroxy-5-methoxybenzoate 
3-hexaprenyl-4-hydroxybenzoic acid 
3-hydroxy-2-isopropyl-4-methoxy-4-oxobutanoate 
3-hydroxy-2-methylbutanoic acid +  
3-hydroxy-2-methylpropanoyl-CoA(4-) 
3-hydroxy-3-(2,3,4-trimethoxyphenyl)propanoic acid 
3-hydroxy-3-(3,4,5-trimethoxyphenyl)propanoic acid 
3-hydroxy-3-(3-methoxyphenyl)propanoic acid 
3-hydroxy-3-(4'-hydroxy-3'-methoxyphenyl)propionic acid 
3-hydroxy-3-methylglutarate(1-) 
3-hydroxy-3-methylglutarate(2-) 
3-hydroxy-3-methylglutaric acid +  
3-hydroxy-3-methylglutaryl-CoA +  
3-hydroxy-3-methylhexanoic acid +  
3-hydroxy-3-phenylpropionic acid +  
3-Hydroxy-4-methoxyphenyllactic acid 
3-Hydroxy-alpha-methyl-DL-tyrosine 
3-hydroxy-L-kynurenine 
3-hydroxy-N(6),N(6),N(6)-trimethyl-L-lysine 
3-hydroxyanthranilate 
3-hydroxyanthranilic acid 
3-hydroxybutyrate +  
3-hydroxybutyric acid +   
3-hydroxydocosanoyl-CoA +  
3-Hydroxyibuprofen 
3-hydroxyicosanoyl-CoA +  
3-hydroxyisobutyrate +  
3-hydroxyisovalerate 
3-hydroxyisovaleric acid +   
3-hydroxyisovalerylcarnitine 
3-hydroxykynurenamine 
3-hydroxykynurenine +   
3-hydroxymandelic acid 
3-hydroxyoctadecanoyl-CoA +  
3-hydroxyphenylacetic acid  
3-Hydroxyphenyllactate 
3-hydroxyphenylpyruvic acid 
3-hydroxypicolinic acid  
3-hydroxypropanoyl-CoA(4-) 
3-hydroxypropionate 
3-hydroxypropionic acid +   
3-hydroxypyruvate 
3-hydroxypyruvic acid  
3-hydroxytetracosanoyl-CoA 
3-hydroxytetradecanoic acid +  
3-iodo-L-tyrosine +  
3-keto-beta-D-galactose 
3-mercaptohexanol +  
3-mercaptohexyl acetate 
3-mercaptopentanol 
3-mercaptopyruvate 
3-mercaptopyruvic acid 
3-methoxy-3-methylhexane 
3-Methoxyphenylacetic acid 
3-methyl-2-oxobutanoate 
3-methyl-2-oxobutanoic acid  
3-methyl-2-oxovalerate +  
3-methyl-2-oxovaleric acid +   
3-methyl-3-sulfanylhexan-1-ol 
3-methyl-pyrazole-4-carboxylic acid 
3-methyladenine  
3-methylbut-2-enoyl-CoA(4-) 
3-methylbutanal 
3-methyleneheptane 
3-methylguanine +  
3-methylhexane 
3-methylhistidine 
3-methylhistidine zwitterion 
3-methylmalate(2-) 
3-methylmalic acid +  
3-methylpentane 
3-methylphenylacetic acid 
3-methylpyrrolo[1,2-a]pyrazine 
3-methylthiopropanol +  
3-methylvaleric acid 
3-O-beta-D-galactopyranosyl-sn-glycerol 
3-O-methyldopa 
3-O-methyldopa zwitterion 
3-oxo-23-hydroxyurs-12-en-28-oic acid 
3-oxoadipic acid +  
3-oxochola-4,6-dien-24-oic acid 
3-oxodecanoyl-CoA 
3-oxodocosanoyl-CoA 
3-oxodotriacontanoyl-CoA 
3-oxohexacosanoyl-CoA 
3-oxohexanoyl-CoA 
3-oxoicosanoyl-CoA 
3-oxolauroyl-CoA 
3-oxooctadecanoyl-CoA 
3-oxooctanoyl-CoA 
3-oxopalmitoyl-CoA(4-) 
3-oxopristanoyl-CoA(4-) 
3-oxopropanoate 
3-oxotetracosanoyl-CoA 
3-oxotetradecanoyl-CoA 
3-penten-1-yne +  
3-phenyl-3-(1-tetrazolyl)propanoic acid 
3-phenylbutyric acid 
3-phenyllactic acid +  
3-phenylpropionate +  
3-phenylpropionic acid +   
3-phosphonato-D-glycerate(3-) 
3-phosphonato-D-glyceroyl phosphate(4-) 
3-phosphonatooxypyruvate(3-) 
3-phosphonatoshikimate(3-) 
3-pyridylacetic acid 
3-sulfino-L-alanine +  
3-sulfino-L-alanine(1-) +  
3-sulfinopropionic acid +  
3-sulfinylpyruvic acid 
3-sulfonatopyruvate(2-) 
3-ureidoisobutyric acid 
3-vinylbacteriochlorophyllide d 
3alpha,7alpha,12alpha,24-tetrahydroxy-5beta-cholestan-26-oyl-CoA +  
3alpha,7alpha,12alpha-trihydroxy-24-oxo-5beta-cholestan-26-oyl-CoA(4-) 
3alpha,7alpha,12alpha-trihydroxy-5beta-cholest-24-en-26-oyl-CoA +  
3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-al +  
3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-oic acid +  
3alpha,7alpha,12alpha-trihydroxy-5beta-cholestane-5-carboxylic acid 
3alpha,7alpha,12beta-trihydroxy-5beta-cholanate 
3alpha,7alpha,12beta-trihydroxy-5beta-cholanic acid 
3alpha,7alpha,24-trihydroxy-5beta-cholestan-26-oyl-CoA 
3alpha,7alpha-dihydroxy-24-oxo-5beta-cholestan-26-oyl-CoA 
3alpha,7alpha-dihydroxy-5beta-cholest-24-enoyl-CoA 
3alpha,7alpha-dihydroxy-5beta-cholestan-26-al 
3alpha,7alpha-dihydroxy-5beta-cholestan-26-oic acid +  
3alpha,7alpha-dihydroxy-5beta-cholestan-26-oyl-CoA +  
3alpha-hydroxy-5beta-androstan-17-one +   
3alpha-hydroxy-5beta-androstan-17-one 3-glucosiduronic acid 
3alpha-hydroxy-5beta-pregnan-20-one  
3beta,12alpha-dihydroxy-5beta-cholan-24-oic acid 
3beta,7alpha,12alpha-trihydroxy-5beta-cholan-24-oic acid 
3beta,7alpha-dihydroxy-5beta-cholan-24-oic acid 
3beta-acetoxyolean-18-en-28-oic acid 
3beta-hydroxy-4beta-methyl-5alpha-cholest-8-ene-4alpha-carboxylate 
3beta-hydroxy-4beta-methyl-5alpha-cholest-8-ene-4alpha-carboxylic acid 
3beta-hydroxy-5alpha-cholest-8-ene-4alpha-carboxylate 
3beta-hydroxy-5alpha-cholest-8-ene-4alpha-carboxylic acid 
3beta-hydroxy-5beta-pregnan-20-one +  
3beta-hydroxy-9beta-9,19-cyclolanost-24-en-28-oic acid 
3beta-hydroxycholest-5-en-26-oic acid +   
3beta-hydroxylanost-8-en-32-al  
4',5-dihydroxydiclofenac 
4'-hydroxydiclofenac  
4,4-dimethyl-5alpha-cholesta-8,14,24-trien-3beta-ol  
4,5,9,10-dehydroisolongifolene 
4,5-bis(diphospho)-1D-myo-inositol tetrakisphosphate 
4,6,8-trimethyl-1-nonene 
4,6-dimethyldodecane 
4,6-dimethylundecane 
4,6-dioxoheptanoic acid  
4,6-O-[(1R)-1-carboxyethylidene]-D-galactose +  
4,8,12-trimethyltridecanoyl-CoA(4-) 
4-(1-oxoeicosa-5,8,11,14-tetraenylamino)butanoic acid 
4-(2-amino-5-hydroxyphenyl)-2,4-dioxobutanoic acid 
4-(2-aminophenyl)-2,4-dioxobutanoate 
4-(2-aminophenyl)-2,4-dioxobutanoic acid 
4-(2-thienyl)butyric acid 
4-(4-\{[(4-aminophenyl)sulfonyl]amino\}phenyl)butanoic acid 
4-(4-methylanilino)-N'-[(6-oxo-5-prop-2-enyl-1-cyclohexa-2,4-dienylidene)methyl]butanehydrazide 
4-(4-styrylphenylcarbamoyl)butyric acid 
4-(5-carboxypentanamido)antipyrine 
4-(5-ethyl-2-thienyl)-4-oxobutyric acid 
4-(benzoylamino)-3-hydroxybutanoic acid 
4-(hydroxyamino)benzoic acid 
4-(hydroxymethyl)-2-propylfuran-3-carboxylic acid 
4-(hydroxymethylphosphinyl)-2-oxobutyric acid 
4-(methylamino)butyric acid 
4-(phosphonatooxy)-L-threonine(2-) 
4-(trimethylammonio)butanoate  
4-(trimethylammonio)butanoic acid +  
4-[(5-oxo-2-phenyl-1,3-oxazol-4-ylidene)methylamino]but-2-enoic acid 
4-[(E)-\{amino[(3-methylbut-2-en-1-yl)amino]methylidene\}amino]butanoic acid 
4-[3-(3-nitrophenyl)-1,2,4-oxadiazol-5-yl]butanoic acid 
4-[4-(2,5-dioxopyrrolidin-1-yl)phenylamino]-4-hydroxybutyric acid 
4-[4-(3,5-dioxohexyl)phenylcarbamoyl]butyric acid 
4-[[4-(dimethylamino)-7,7-dimethyl-6,8-dihydropyrimido[4,5-b][1,4]benzothiazin-9-yl]amino]butanoic acid 
4-\{[(4-aminophenyl)sulfonyl]amino\}butanoic acid 
4-\{[(4-aminophenyl)sulfonyl]amino\}hexanoic acid 
4-acetamidobutanal 
4-acetamidobutanoate 
4-amino-2-methyl-5-diphosphonatooxymethylpyrimidine(3-) 
4-amino-2-methyl-5-phosphonatooxymethylpyrimidine(2-) 
4-Amino-2-methylenebutanoic acid 
4-amino-3-methylbutanoic acid 
4-amino-4-deoxychorismate(2-) 
4-amino-5-hydroxymethyl-2-methylpyrimidine 
4-amino-pentanoic acid 
4-aminobenzoate +  
4-ammoniobutanal 
4-bromo-1-hydroxyanthraquinone-2-carboxylic acid 
4-Bromophenyl acetate 
4-carboxy-4'-sulfoazobenzene 
4-carboxy-4-methylzymosterol 
4-carboxyzymosterol 
4-chloro-N-[4-[3-(methylthio)anilino]-4-oxobutyl]benzamide 
4-chlorophenylacetic acid 
4-coumaroyl-CoA(4-) +  
4-Dimethylamino-L-phenylalanine 
4-diphospho-1D-myo-inositol pentakisphosphate 
4-ethylphenyl sulfate 
4-ethylphenyl sulfate(1-) 
4-formylbenzoic acid  
4-formylzymosterol +  
4-fumarylacetoacetate(2-) 
4-guanidiniumylbutanamide(1+) 
4-guanidinobutanoic acid 
4-guanidinobutyric acid +  
4-hexen-3-one +  
4-hydroxy-1,2,5-oxadiazole-3-carboxylic acid 
4-hydroxy-2-oxoglutarate(2-) +  
4-hydroxy-L-prolinate 
4-hydroxy-L-proline zwitterion 
4-hydroxy-L-threonine 
4-hydroxybenzoate +  
4-hydroxybenzoyl-CoA(4-) 
4-hydroxybutyric acid +   
4-Hydroxyhydratropate 
4-Hydroxymethyl-3-methoxyphenoxyacetic acid 
4-hydroxymethylzymosterol +  
4-hydroxynon-2-enal +   
4-hydroxyphenylacetate 
4-hydroxyphenylacetic acid +   
4-hydroxyphenylacetylglycine 
4-hydroxyphenylpyruvic acid +  
4-hydroxyphenylpyruvic acid oxime 
4-Hydroxypheoxyacetate 
4-hydroxyproline +  
4-maleylacetoacetate 
4-mercapto-4-methylpentan-2-one 
4-methoxy-17beta-estradiol +   
4-methoxyestrone +  
4-methoxyphenylacetic acid 
4-methoxytyramine  
4-methyl-2,2'-bipyridine-4'-carboxylic acid 
4-methyl-2-oxopentanoate 
4-methyl-2-oxopentanoic acid  
4-methyl-2-pyrroline-5-carboxylic acid +  
4-methyl-5-(2-phosphonatooxyethyl)thiazole(2-) 
4-methyl-pyrazole-3-carboxylic acid 
4-methylaeruginoic acid 
4-methylcatechol +   
4-methylidene-2-octyl-5-oxotetrahydrofuran-3-carboxylic acid +  
4-methylpentanal  
4-methylthio-2-oxobutanoate +  
4-methylthio-2-oxobutanoic acid +   
4-methylundecane 
4-nitrophenyl (4-carboxybutyl)phosphonate 
4-nitrophenyl hydrogen sulfate  
4-O-methyl-L-dopa 
4-oxo-4-(2-thienyl)butyric acid 
4-oxo-4-(pyridin-3-yl)butanoic acid 
4-oxo-4-phenylbutyric acid 
4-oxobutanoate 
4-phenylbutyric acid  
4-phospho-L-aspartate 
4-pyridoxate 
4-sulfanylbutanoic acid +  
4-trimethylammoniobutanal 
4a-hydroxytetrahydrobiopterin +  
4alpha-formyl-4beta-methyl-5alpha-8-cholesten-3beta-ol 
4alpha-formyl-5alpha-cholest-8-en-3beta-ol 
4alpha-hydroxymethyl-4beta-methyl-5alpha-8-cholesten-3beta-ol 
4alpha-hydroxymethyl-4beta-methylzymosterol 
4alpha-hydroxymethyl-5alpha-cholest-8-en-3beta-ol 
4alpha-methyl-5alpha-cholest-8-en-3-one 
4alpha-methyl-5alpha-cholest-8-en-3beta-ol 
4alpha-methylzymosterol +  
4beta-hydroxycholesterol  
4beta-methylzymosterol-4-carbaldehyde 
4beta-methylzymosterol-4alpha-carboxylic acid 
4EGI-1 
4R-aminopentanoic acid 
4S-aminopentanoic acid 
5'-acetylphosphoadenosine 
5'-adenylyl sulfate(2-) 
5'-deoxyadenosine 
5'-S-methyl-5'-thioadenosine  
5'-xanthylate(2-) 
5(6)-carboxy-2',7'-dichlorofluorescein  
5(S),6(S)-epoxy-18(S)-hydroxy-(7E,9E,11Z,14Z,16E)-icosapentaenoic acid 
5(S)-HETE 
5(S)-HPETE(1-) 
5,10-methylenetetrahydrofolate(2-) +  
5,6,7,8-tetrahydro-2-naphthoic acid 
5,6,7,8-tetrahydrobiopterin +   
5,6,7,8-tetrahydrofolic acid +   
5,6,7,8-tetrahydrofolyl-L-glutamic acid 
5,6,7,8-tetrahydropterin-6-carboxylic acid 
5,6-bis(diphospho)-1D-myo-inositol tetrakisphosphate 
5,6-dihydrothymine 
5,6-dihydrouracil 
5,6-dihydroxyindole-2-carboxylate +  
5,6-dimethylbenzimidazole 
5,6-trans-vitamin D3 
5-(2,3-dimethoxy-4-methylphenyl)pentanoic acid 
5-(2-amino-5,6-dimethyl-1H-benzimidazol-1-yl)pentanoic acid 
5-(2-carboxylatoethyl)-4-oxo-4,5-dihydro-1H-imidazol-5-ide 
5-(2-hydroxyethyl)-4-methylthiazole 
5-(2-methylphenyl)-4-pentenoic acid +  
5-(hydroxymethyl)cytosine +   
5-(methylsulfanyl)-2,3-dioxopentyl phosphate(2-) 
5-[(2-aminobenzimidazol-6-yl)amino]-5-oxopentanoic acid 
5-[(4-nitrobenzyl)(phosphonomethyl)amino]valeric acid 
5-[(5-phospho-1-deoxy-D-ribulos-1-ylimino)methylamino]-1-(5-phospho-beta-D-ribosyl)imidazole-4-carboxamide(4-) 
5-[(9Z)-hexadecenoyloxy]octadecanoic acid 
5-[(9Z)-octadecenoyloxy]octadecanoic acid 
5-[4-(2-furylcarbonyl)piperazino]-5-oxo-3-phenylpentanoic acid 
5-[[3-(1-phenylethoxy)-4-(2-phenylethoxy)phenyl]methylene]-4-oxo-2-thioxo-3-thiazolidineacetic acid 
5-\{N-[4-(4-cyanostyryl)phenyl]-N-methylamino\}pentanoic acid 
5-acetamido-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->3)-beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
5-acetamido-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->3)-beta-D-galactopyranosyl-(1->4)-[6-deoxy-alpha-L-galactopyranosyl-(1->3)]-D-glucopyranose 
5-acetamido-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->6)-[beta-D-galactopyranosyl-(1->3)]-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
5-acetamido-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->6)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose +  
5-adamantyl-IAA 
5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide(2-) +  
5-amino-1-(5-phosphonato-D-ribosyl)imidazol-3-ium 
5-amino-1-(5-phosphonato-D-ribosyl)imidazole-4-carboxylate 
5-amino-2-oxopentanoic acid 
5-amino-3-(4-methoxyphenyl)-5-oxopentanoic acid 
5-amino-5-deoxy-3-dehydroshikimic acid 
5-amino-6-(5-phosphoribitylamino)uracil(2-) 
5-amino-6-(D-ribitylamino)uracil 
5-aminocyclohexa-1,3-diene-1-carboxylic acid +  
5-aminolevulinic acid +   
5-aminopentanoic acid +  
5-azaorotic acid  
5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid +   
5-carboxyfluorescein +   
5-dehydro-4-deoxy-2-O-sulfo-D-glucuronic acid 
5-Deoxy-5-aminoshikimic acid 
5-diphospho-1D-myo-inositol pentakisphosphate 
5-diphospho-1D-myo-inositol pentakisphosphate(13-) 
5-dodecenoate 
5-dodecenoic acid +  
5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide(2-) 
5-formimidoyltetrahydrofolate(2-) 
5-formyluracil 
5-guanidino-2-oxopentanoic acid 
5-hydroperoxy-15-HETE +  
5-hydroxy-L-tryptophan 
5-hydroxy-N-formylkynurenine +  
5-hydroxybenzimidazole 
5-hydroxydiclofenac  
5-hydroxydiclofenac quinone imine 
5-hydroxyectoine 
5-hydroxyfuran-2-carboxylic acid 
5-hydroxyindole  
5-hydroxyisouric acid +  
5-hydroxykynurenine +  
5-hydroxymethyluracil +  
5-hydroxytryptophan +   
5-methoxytryptamine +   
5-methyl-2-furaldehyde 
5-methyl-pyrazole-3-carboxylic acid  
5-methylcytosine +   
5-methyldec-1-ene 
5-methyltetrahydrofolic acid +   
5-methyltetrahydropteroyltri-L-glutamate(4-) 
5-N-Methyloxaluric acid 
5-O-(1-carboxylatovinyl)-3-phosphonatoshikimate 
5-O-phosphonato-alpha-D-ribofuranosyl diphosphate(5-) 
5-O-phosphono-alpha-D-ribofuranosyl diphosphate 
5-oxo-3-phenyl-5-(2-quinolinylamino)pentanoic acid 
5-oxo-ETE  
5-oxoprolinate +  
5-oxoproline +   
5-oxotetrahydrofuran-2-carboxylic acid 
5-PAHSA 
5-PAHSA(1-) 
5-phenylpentanoic acid 
5-phospho-beta-D-ribosylaminium(1-) 
5alpha-androstane +   
5alpha-androstane-3alpha,17beta-diol +   
5alpha-androstane-3beta,17beta-diol +   
5alpha-cholest-7-en-3beta-ol +   
5alpha-cholest-8-en-3beta-ol 
5alpha-cholesta-7,24-dien-3beta-ol 
5alpha-pregnane-3,20-dione  
5beta-cholestan-3-one 
5beta-cholestane-3alpha,7alpha,12alpha,26-tetrol +  
5beta-cholestane-3alpha,7alpha,12alpha-triol 
5beta-cholestane-3alpha,7alpha,26-triol 
5beta-cholestane-3alpha,7alpha-diol 
5beta-dihydrotestosterone 
5beta-pregnane-3,20-dione 
6,7-dihydrobiopterin +  
6,7-dimethyl-8-(1-D-ribityl)lumazine(1-) 
6-(2-amino-2-carboxyethyl)-4-hydroxybenzothiazole 
6-(4-hydroxy-3-nitrobenzamido)hexanoic acid 
6-(4-hydroxy-5-iodo-3-nitrobenzamido)hexanoic acid 
6-(6-\{3-[(progesterone-4-yl)thiopropionyl]aminohexanoyl\}amino)hexanoic acid 
6-(alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol +  
6-(alpha-D-glucosaminyl)-O-acyl-1-phosphatidyl-1D-myo-inositol 
6-(N-acetyl-alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol(1-) +  
6-[4-(5,5-dimethyltetrahydrofuran-3-yl)phenoxy]hexanoic acid 
6-[5-(1-carboxy-4-N-carboxylate)-3-methylpent-2-enyl]-7-hydroxy-5-methoxy-4-methylphthalan-1-one 
6-[6-(2-aminoethylphosphoryl)-alpha-mannosyl-(1->6)-2-(2-aminoethylphosphoryl)-alpha-mannosyl-(1->6)-alpha-2-(2-aminoethylphosphoryl)mannosyl-(1->4)-alpha-glucosaminyl]-O-acyl-1-phosphatidyl-1D-myo-inositol +  
6-\{3-[(progesterone-4-yl)thiopropionyl]amino\}hexanoic acid 
6-\{4-[hydroxy-(4-nitrophenoxy)phosphoryl]butyrylamino\}hexanoic acid 
6-\{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl\}hex-5-ynoic acid 
6-\{[5-(p-nitrophenoxy)-5-oxopentanoyl]amino\}hexanoic acid 
6-amino-2-oxohexanoic acid +  
6-carboxyfluorescein +   
6-deoxy-alpha-L-galactopyranosyl-(1->3)-[beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)]-D-glucopyranose 
6-diphospho-1D-myo-inositol pentakisphosphate 
6-hydroxymethyladenine 
6-ketopiperidine-2-carboxylic acid 
6-lactoyl-5,6,7,8-tetrahydropterin +  
6-methyladenine 
6-O-[alpha-D-mannosyl-(1->4)-alpha-D-glucosaminyl]-O-acyl-1-phosphatidyl-1D-myo-inositol 
6-O-\{2-O-[(2-aminoethyl)phosphoryl]-alpha-D-mannosyl-(1->4)-alpha-D-glucosaminyl\}-O-acyl-1-phosphatidyl-1D-myo-inositol 
6-O-\{alpha-D-mannosyl-(1->2)-alpha-D-mannosyl-(1->6)-2-O-[(2-aminoethyl)phosphoryl]-alpha-D-mannosyl-(1->4)-alpha-D-glucosaminyl\}-O-acyl-1-phosphatidyl-1D-myo-inositol 
6-O-\{alpha-D-mannosyl-(1->6)-2-O-[(2-aminoethyl)phosphoryl]-alpha-D-mannosyl-(1->4)-alpha-D-glucosaminyl\}-O-acyl-1-phosphatidyl-1D-myo-inositol 
6-O-phosphonato-D-glucono-1,5-lactone(2-) 
6-oxoprostaglandin F1alpha  
6beta-[N-(carboxymethylamino)carbonyl]methoxy-17beta-estradiol 
6beta-hydroxycortisol  
6beta-hydroxycortisone 
6beta-hydroxytestosterone +   
7,8-diaminononanoate 
7,8-dihydroneopterin +  
7,8-dihydroneopterin 3'-phosphate(2-) 
7,8-dihydroneopterin 3'-triphosphate(4-) 
7,8-dihydropteroate +  
7,8-dihydroxy-1-methoxy-3-methyl-10-oxo-1H,10H-pyrano[4,3-b]chromene-9-carboxylic acid 
7,8-dihydroxy-1-methoxy-3-methyl-10-oxo-4,10-dihydro-1H,3H-pyrano[4,3-b]chromene-9-carboxylic acid 
7,8-dihydroxy-3-methyl-10-oxo-10H-chromeno[3,2-c]pyridine-9-carboxylic acid 
7,9-dihydro-1H-purine-2,6,8(3H)-trione +   
7-(2-amino-2-carboxyethyl)-5-hydroxy-2H-1,4-benzothiazine-3-carboxylic acid 
7-(2-amino-2-carboxyethyl)-5-hydroxy-3,4-dihydro-2H-1,4-benzothiazin-3-one 
7-(3-aminopyrrolidin-1-yl)-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid +  
7-[(3-chloro-6-methyl-5,5-dioxido-6,11-dihydrodibenzo[c,f][1,2]thiazepin-11-yl)amino]heptanoic acid +   
7-[3-(3-cyclohexyl-3-hydroxypropyl)-2,5-dioxoimidazolidin-4-yl]heptanoic acid +   
7-carboxy-7-deazaguanine +  
7-dehydrodesmosterol 
7-methoxycoumarin-4-acetic acid 
7-methylguanine +   
7-oxo-5alpha-cholestan-3beta-ol 
7-oxolithocholic acid +   
7-PAHSA 
7-PAHSA(1-) 
7-phospho-2-dehydro-3-deoxy-D-arabino-heptonate 
7alpha,12alpha-dihydroxy-3-oxo-5beta-cholan-24-oic acid +  
7alpha,12alpha-dihydroxy-5beta-cholestan-3-one 
7alpha,12alpha-dihydroxycholest-4-en-3-one 
7alpha,25-dihydroxy-4-cholesten-3-one 
7alpha,25-dihydroxycholesterol 
7alpha,26-dihydroxycholesterol +  
7alpha-hydroxy-3-oxo-4-cholestenoic acid 
7alpha-hydroxy-3-oxo-5beta-cholan-24-oic acid 
7alpha-hydroxy-5beta-cholestan-3-one 
7alpha-hydroxycholest-4-en-3-one  
7beta-aminodeacetoxycephalosporanic acid 
7beta-hydroxyepiandrosterone 
7C-Aglycone 
8'-(3-hydroxy-3-methylglutaryloxy)abscisic acid 
8,12-diethyl-3-vinylbacteriochlorophyllide d 
8-(3-((1-Ethoxy-2-methyl-1-oxopropan-2-yl)oxy)phenyl)octanoic acid 
8-amino-7-oxononanoic acid 
8-aminooctanoic acid 
8-benzyl-7-hydroxy-4,10-dioxo-1-phenyl-6-oxa-3,9-diaza-7-phosphatetradecan-14-oic acid 7-oxide 
8-epi-prostaglandin E2  
8-hydroxyadenine 
8-nitroguanosine 3',5'-cyclic monophosphate 
8-oxoadenine 
8-PAHSA 
8-PAHSA(1-) 
9(S)-HPODE 
9,10-epoxyoctadecanoic acid +  
9-(2-carboxyethyl)-10-methylanthracene endoperoxide 
9-(methylsulfinyl)nonanoic acid 
9-(octadecanoyloxy)octadecanoic acid 
9-[(9Z)-hexadecenoyloxy]octadecanoic acid 
9-[(9Z)-octadecenoyloxy]octadecanoic acid 
9-HODE +   
9-mercaptodethiobiotin 
9-PAHSA 
9-PAHSA(1-) 
9beta-pimara-7,15-dien-19-oic acid 
9H-xanthine +   
[(2-ethyl-6-methylphenyl)(1-methoxypropan-2-yl)amino](oxo)acetic acid +  
[1-(5-phosphoribosyl)imidazol-4-yl]acetic acid 
[1-ethyl-8-(hydroxymethyl)-3H,4H,9H-pyrano[3,4-b]indol-1-yl]acetic acid 
[des-Phe(8), des-Arg(9)]-bradykinin 
[Pyr1]apelin-12(2+) 
[Pyr1]apelin-13(2+) 
\{[6-(1-benzothiophen-2-yl)thieno[3,2-d]pyrimidin-4-yl]sulfanyl\}acetic acid 
A-factor 
abacavir 5'-carboxylic acid 
abietic acid +   
Ac-Asp-Glu  
aceclofenac  
acemetacin  
acetaldehyde +   
acetate +   
acetic acid +   
acetic acid-d4 
acetoacetate 
acetoacetic acid +   
acetoacetyl-CoA(4-) 
acetochlor OXA 
acetone +   
acetyl aleuritolic acid 
acetyl dihydrogen phosphate 
acetyl-[acyl-carrier protein] 
acetyl-CoA(4-) 
acetylcholine +   
acifluorfen  
acrylate +   
acryloyl-CoA(4-) 
ACT-333679 +  
acutoside A 
acyl-carrier protein +  
acylglycerone phosphate +  
adapalene  
adenine +   
adenosine +   
adenosine 2'-phosphate 
adenosine 3',5'-bismonophosphate(4-) 
adenosine 5'-monophosphate(2-) +  
ADP +   
ADP alpha-D-glucoside(2-) 
ADP(3-) +  
ADP-alpha-D-mannose 
ADP-D-ribose 2'-phosphate(4-) 
ADP-D-ribose(2-) +  
adrenaline +   
aflatoxin B1 +   
aflatoxin B1 exo-8,9-epoxide  
agmatinium(2+) 
agnestin A 
AICA ribonucleotide  
Ala-tRNA(Ala) 
alborixin  
alclofenac  
aldehydic acid +   
aldehydo-D-galacturonate 
aldehydo-D-xylose +  
aldehydo-L-iduronate 
aldehydo-N-acetyl-D-glucosamine 
aldehydo-N-acetyl-D-mannosamine 
aldonic acid +   
aldosterone +   
all-cis-5,8,11,14,17-icosapentaenoate +  
all-cis-docosa-4,7,10,13,16,19-hexaenoic acid +   
all-cis-docosa-7,10,13,16-tetraenoic acid +   
all-cis-icosa-8,11,14-trienoic acid +  
all-cis-icosa-8,11,14-trienoyl-CoA 
all-trans-13,14-dihydroretinoic acid +  
all-trans-4-hydroxyretinoic acid +   
all-trans-dodecaprenyl diphosphate 
all-trans-dodecaprenyl diphosphate(3-) 
all-trans-retinal +   
all-trans-retinoate +  
all-trans-retinoic acid +   
all-trans-retinol +   
allantoate 
allantoin +   
allocholic acid +  
allyl octadecyl oxalate 
Allyl phenoxyacetate 
alminoprofen 
alpha,alpha-trehalose +   
alpha,alpha-trehalose 6-phosphate(2-) 
alpha,beta-unsaturated monocarboxylic acid +   
alpha-(4-methoxyphenyl)-6-methyl-2-pyridineacrylic acid 
alpha-(p-Methoxyphenyl)-4-pyridineacrylic acid 
alpha-amino-gamma-cyanobutanoic acid 
alpha-aminobutyrate 
alpha-aminobutyric acid +  
alpha-cubebene 
alpha-D-Gal-(1->3)-alpha-D-Gal-(1->4)-D-GlcNAc-(CH2)5CO2H 
alpha-D-galactose 1-phosphate(2-) 
alpha-D-GlcpNAc-(1->4)-beta-D-GlcpA 
alpha-D-GlcpNS-(1->4)-alpha-L-IdopA2S 
alpha-D-glucosamine 1-phosphate(1-) 
alpha-D-glucosamine 6-phosphate 
alpha-D-glucose 1,6-bisphosphate 
alpha-D-glucose 1,6-bisphosphate(4-) 
alpha-D-glucose 1-phosphate(2-) 
alpha-D-glucose-1,2-((13)C2) 
alpha-D-glucosyl-(1->3)-beta-D-mannose 
alpha-D-Kdo-4P-OAll 
alpha-D-Kdo-5P-OAll 
alpha-D-Ko 
alpha-D-mannose 1-phosphate(2-) 
alpha-D-mannosyl-beta-D-mannosyldiacetylchitobiosyldiphosphodolichol 
alpha-D-ribofuranose 5-phosphate 
alpha-D-ribose 1-phosphate(2-) 
alpha-ionylideneacetic acid 
alpha-isomethylionyl acetate 
alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1->1')-Cer +  
alpha-L-IdopA-(1->3)-2,5-anhydro-D-Glc-OH4S 
alpha-linolenate +  
alpha-linolenoyl-CoA 
alpha-maltotriose +  
alpha-Man-(1->2)-alpha-Man-(1->2)-alpha-Man-(1->3)-[alpha-Man-(1->2)-alpha-Man-(1->3)-[alpha-Man-(1->2)-alpha-Man-(1->6)]-alpha-Man-(1->6)]-beta-Man-(1->4)-beta-GlcNAc-(1->4)-alpha-GlcNAc(PP-Dol) 
alpha-Methyl-m-tyrosine 
alpha-Methylphenylalanine 
alpha-N-acetylneuraminosyl-(2->3)-[beta-D-galactosyl-(1->3)-N-acetyl-beta-D-galactosaminyl-(1->4)]-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1')-N-acylsphingosine +   
alpha-N-acetylneuraminosyl-(2->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1')-N-acylsphingosine(1-) +  
alpha-N-acetylneuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl group 
alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->3)-beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer +  
alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-D-Glc-(1<->1')-Cer 
alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)-beta-Gal-(1->3)-beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]-beta-Gal-(1->4)-beta-Glc-(1<->1')-Cer 
alpha-Neu5NAc-(2->8)-alpha-Neu5NAc-(2->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer 
alpha-Neup5Ac-(2->3)-beta-D-Galp-(1->3)-beta-D-GalpNAc-(1->4)-[alpha-Neup5Ac-(2->8)-alpha-Neup5Ac-(2->8)-alpha-Neup5Ac-(2->3)]-beta-D-Galp-(1->4)-beta-D-Glcp-(1<->1')-Cer +  
alpha-Neup5Ac-(2->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->6)-[beta-D-Galp-(1->3)]-alpha-D-GalpNAc 
alpha-Neup5NAc-(2->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-beta-D-Glcp-(1<->1')-Cer 
alpha-phenylglycine +   
alpha-pinene oxide 
alpha-tocopheryloxyacetic acid 
alpha-tocotrienol  
alternariol hapten ALa 
alternariol hapten ALb 
Aluminum clofibrate 
Amibegron  
amidinoproclavaminic acid 
amino monocarboxylic acid +  
AminoDHQ 
aminomalonic acid  
aminonicotinic acid +   
amlexanox  
ammonioacetaldehyde 
ammonioacetone 
ammonium +   
Amprotropine 
anandamide +   
androst-4-ene-3,17-dione +   
androst-5-ene-3beta,17beta-diol +   
androstane-3,17-dione +   
androsterone +   
androsterone 3-glucosiduronic acid  
androsterone sulfate 
angiotensin (1-9) 
angiotensin (1-9) dizwitterion 
angiotensin I  
angiotensin I dizwitterion 
angiotensin-(1-5) dizwitterion 
Anisodamine 
anthranilate +  
anthranilic acid +   
apelin-12 
apelin-13 
apelin-16(6+) 
apelin-17(6+) 
Aplojaveediin F 
apo-[acyl-carrier protein] 
Apoatropine 
Apohyoscine 
aquacob(III)alamin 
arabinitol +  
arachidonate +   
arachidonic acid +   
arachidonoyl-CoA(4-) 
Arbaclofen 
Arg-tRNA(Arg) 
aristolochic acid A +   
aristolochic acid B 
aristolochic acid C 
aristolochic acid D 
aristolochic acids +   
arsonoacetic acid 
ascidiathiazone A 
ascidiathiazone B 
ascr#1 +  
ascr#10 +  
ascr#11 
ascr#12 +  
ascr#14 +  
ascr#16 +  
ascr#18 +  
ascr#20 +  
ascr#22 +  
ascr#24 +  
ascr#26 +  
ascr#28 +  
ascr#30 +  
ascr#32 +  
ascr#34 +  
ascr#36 +  
ascr#38 +  
ascr#5 
ascr#8 
ascr#9 +  
asiatic acid +   
Asn-tRNA(Asn) 
asnovolin I 
Asp-tRNA(Asp) 
Asp-Tyr-Met-Gly-Trp-Met-Asp-Phe-NH2 
aspergillusene B 
asprellic acid A 
asprellic acid C 
Atagabalin 
atenolol acid 
ATP(3-) 
ATP(4-) +  
ATTO 465-2(1+) +  
ATTO 495-2 +  
ATTO 495-2(1+) +  
ATTO 520-2 +  
ATTO 520-2(1+) +  
autoinducer +   
Bacillcoumacin B 
baclofen  
ballodiolic acid 
ballotenic acid 
bayogenin 3-O-cellobioside 
behenate +  
benazolin +  
bendazac 
benoxaprofen  
benzimidazolecarboxylic acid +   
Benzoic acid, 3-[[(3-carboxycyclohexyl)amino]carbonyl]-4-[3-[4-(4-phenoxybutoxy)phenyl]propoxy]- 
Benzoic acid, 3-[[(3-carboxycyclohexyl)amino]carbonyl]-4-[3-[4-[4-(cyclohexyloxy)butoxy]phenyl]propoxy]- 
benzothiazine +   
benzylpenillamine 
bepotastine 
beraprost  
beta-alanine +   
beta-carotene +   
beta-casochemotide-1 
beta-casomorphin-6 (human) 
beta-casomorphin-7 (human) 
beta-casomorphin-7 (human)(1-) 
beta-citrylglutamic acid 
beta-D-4-deoxy-Delta(4)-GlcpA-(1->3)-beta-D-GalpNAc +  
beta-D-Delta(4)-GlcpA-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-D-Glcp +  
beta-D-fructofuranose 2,6-bisphosphate  
beta-D-fructofuranose 2,6-bisphosphate(4-) 
beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-[beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->6)]-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-[beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->6)]-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-[beta-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->6)]-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)-D-glucopyranose 
beta-D-galactosyl-(1->3)-N-acetyl-D-galactosaminyl group 
beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-N-acylsphingosine +  
beta-D-galactosyl-(1->4)-beta-D-glucosyl-N-(hexacosanoyl)sphingosine 
beta-D-galactosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl group 
beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer(1-) +  
beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer +  
beta-D-Galp-(1->3)-[alpha-Neup5Ac-(2->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->6)]-D-GalpNAc 
beta-D-Galp-(1->4)-[alpha-L-Fucp-(1->3)]-beta-D-GlcpNAc-(1->6)-\{alpha-L-Fucp-(1->4)-[alpha-L-Fucp-(1->2)-beta-D-Galp-(1->3)]-beta-D-GlcppNAc-(1->3)\}-beta-D-Gal-(1->4)-D-Glcp 
beta-D-GlcpA-(1->4)-beta-D-Xylp 
beta-D-GlcpA-(1->4)-D-Xylp 
beta-D-GlcpA3S-(1->3)-2,5-anhydro-D-Glc-OH 
beta-D-GlcpNAc-(1->4)-beta-D-GlcpA 
beta-D-mannosyldiacetylchitobiosyldiphosphodolichol 
beta-endorphin  
beta-Gal-(1->3)-beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-Gal-(1->4)-beta-Glc-(1<->1')-Cer 
beta-L-thrHexpA4en-(1->4)-beta-D-GlcpNAc 
beta-leucine +  
betaine aldehyde 
bevirimat 
bezafibrate  
BFNB 
BFNP 
bhas#10 +  
bhas#16 +  
bhas#18 +  
bhas#20 +  
bhas#22 +  
bhas#24 +  
bhas#26 +  
bhas#28 +  
bhas#30 +  
bhas#32 
bhas#34 
bhas#36 
bhas#38 
bhas#40 
bhas#42 
bhos#10 +  
bhos#16 +  
bhos#18 +  
bhos#20 +  
bhos#22 +  
bhos#24 +  
bhos#26 +  
bhos#28 
bhos#30 
bhos#32 
bhos#34 
bhos#36 
bhos#38 
bhos#40 
bhos#42 
bile acids +   
bilirubin IXalpha  
bilirubin(2-) 
biliverdin +   
biliverdin hydrochloride 
biliverdin(2-) 
binifibrate 
biotin +   
biotin amide 
biotinate +  
biotins +   
biotinyl-5'-AMP 
biotinyl-5'-AMP(1-) 
biphenyl-4-ylacetic acid +  
bis(2-methyl-3-furyl)disulfide 
bis(2-methyl-4,5-dihydro-3-furyl) disulfide 
bis(2-methylundecan-2-yl) disulfide 
bis(4-chlorophenyl)acetic acid 
bis(beta-glucosyluronate)bilirubin 
bispyribac 
BODIPY FL 
BODIPY R6G 
BODIPY-3823 
borrelidin  
brassicasterol +  
brequinar  
brexanolone 
breynceanothanolic acid 
bromochloroacetic acid  
bumadizone 
but-1-ene-1,2,4-tricarboxylate 
butan-1-ol +   
butane-2,3-dione  
butyl hexanoate 
butyl propionate 
butyrate +   
butyrate ester +   
butyryl group 
butyryl-CoA +   
butyryl-CoA(4-) 
butyrylglycine 
c-di-GMP  
cacibiocin A +  
calcidiol +   
calciol +   
calcitetrol 
calcitriol +   
calcium(2+) +   
candoxatril 
canrenoic acid  
carbamoyl phosphate(2-) 
carbapenemcarboxylic acid +   
carbazic acid +   
carbidopa  
carbidopa (anhydrous) +   
carbon dioxide  
carbon monoxide  
carboxyacetyl-[acyl-carrier protein] 
carboxyfentanyl 
Carboxyprimaquine 
cardiolipin +  
carminic acid 
carnitine +   
carnitinium +  
carnosic acid  
carnosine +   
Carpatamide B 
Carpatamide C 
Carpatamide D 
cathestatin A 
cathestatin B 
CD437 +   
CDP(3-) +  
CDP-1-palmitoyl-2-arachidonoyl-sn-glycerol 
CDP-1-palmitoyl-2-arachidonoyl-sn-glycerol(2-) 
CDP-1-stearoyl-2-arachidonoyl-sn-glycerol 
CDP-1-stearoyl-2-arachidonoyl-sn-glycerol(2-) 
CDP-1-stearoyl-2-linoleoyl-sn-glycerol 
CDP-1-stearoyl-2-linoleoyl-sn-glycerol(2-) 
CDP-1-stearoyl-2-oleoyl-sn-glycerol 
CDP-1-stearoyl-2-oleoyl-sn-glycerol(2-) 
CDP-choline  
CDP-diacylglycerol(2-) +  
CDP-ethanolamine(1-) 
celastolide 
celastrol  
cephalanone F 
cerotate +  
cetirizine  
CGS-21680  
chartaceone A +  
chenodeoxycholate +  
chenodeoxycholic acid +   
chenodeoxycholoyl-CoA 
chitin  
chitosan  
chlorambucil  
chloride +   
chlorophenoxyacetic acid +   
cholate +   
cholest-4-en-3-one +   
cholesta-5,7-dien-3beta,24S-diol 
cholesta-5,7-dien-3beta,25-diol 
cholesta-5,7-dien-3beta-ol +   
cholestanol 7alpha,8alpha-epoxide 
cholesterol +   
cholesterol sulfate  
cholesteryl acetate 
cholesteryl linoleate  
cholesteryl palmitate  
cholic acid +   
choline +   
choline alfoscerate 
choline phosphate(1-) 
choloyl-CoA(4-) 
chorismate(2-) +  
Chorismeron 
chorismic acid +  
chromenemonocarboxylic acid +  
chrysanthemic acid +   
chrysobactin 
ciprofibrate  
cis,cis-2-amino-3-(3-oxoprop-1-enyl)but-2-enedioate 
cis,cis-2-ammonio-3-(3-oxoprop-1-enyl)but-2-enedioate(1-) 
cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylic acid +  
cis-3-hydroxy-D-proline 
cis-aconitate(3-) 
cis-dodec-3-enoyl-CoA(4-) 
cis-heme d hydroxychlorin gamma-spirolactone +  
cis-resveratrol 3-O-glucuronide 
citraconic acid  
citramalate(2-) +  
citramalic acid +  
clavaminic acid 
clodinafop +  
clofencet 
clofibric acid +   
clofibride 
clopidogrel carboxylic acid 
cloquintocet 
cloransulam +  
CMP-5'-phosphonoformic acid 
CMP-N-acetyl-beta-neuraminate(2-) +  
CMP-N-glycoloyl-beta-neuraminate(2-) 
cob(I)alamin 
cob(II)alamin 
cobamamide +   
cocaine(1+) +   
cochalic acid 
coenzyme A(4-) +  
coenzyme Q10  
concanamycin +   
coproporphyrin I 
coproporphyrin III 
coproporphyrinogen I 
coproporphyrinogen III(4-) 
corticosterone +   
corticotropin-releasing hormone +   
cortisol +   
cortisol 21-sulfate 
cortisone +   
coumarin +   
Cp-114271 
CPP  
crambescidin 401 
creatine +   
creatinine  
cremeomycin 
crotonoyl-CoA(4-) 
CTP(4-) +  
cvxIAA 
cyanate +   
cyanoacetic acid +  
cyclanilide 
cyclitol carboxylic acid +   
cyclohexadienecarboxylic acid +  
cyclohexanecarboxylic acid +   
cyclohexenecarboxylic acid +   
cyclohexylacetic acid 
cyclopropanecarboxylic acid +   
cyclotetradecane +   
Cys-tRNA(Cys) 
cysteamine +   
cysteaminium 
cystine +   
cystine zwitterion +  
cytidine +   
cytidine 5'-monophosphate +   
cytidine 5'-monophosphate(2-) +  
cytosine +   
D-2,4-diaminobutyric acid 
D-alaninate 
D-alanine +   
D-alaninium 
D-arabinono-1,4-lactone 
D-arabinose +  
D-argininium(1+) +  
D-aspartate(1-) +  
D-erythro-1-(imidazol-4-yl)glycerol 3-phosphate(2-) 
D-erythrose 4-phosphate  
D-erythrose 4-phosphate(2-) 
D-fructose +   
D-fructose 6-phosphate(2-) 
D-galactonate +  
D-galactono-1,4-lactone +  
D-galactopyranose 1-phosphate +   
D-galactose +   
D-glucarate(2-) +  
D-glucitol +   
D-gluconate +  
D-glucopyranose +   
D-glucopyranose 6-phosphate(2-) +  
D-glucopyranuronate +  
D-glucosamine +   
D-glucosamine 6-phosphate +   
D-glucosyl-N-acylsphingosine +  
D-glucuronate +  
D-glucuronate 1-phosphate 
D-glucurono-6,3-lactone  
D-glyceraldehyde +   
D-histidinate(1-) 
D-histidinate(2-) 
D-histidine +  
D-histidinium(1+) +  
D-histidinium(2+) 
D-isoleucinate 
D-isoleucine +  
D-isoleucinium 
D-kynurenine 
D-leucinate 
D-leucine +  
D-leucinium 
D-mannitol 1-phosphate 
D-mannose +   
D-mannose 1-phosphate +  
D-methioninate 
D-methioninium 
D-o-tyrosine +  
D-ornithinium(1+) 
D-pipecolate 
D-pipecolic acid 
D-prolinate 
D-prolinium +  
D-prolinol 
D-ribose +   
D-ribosylnicotinate 
D-ribulose +  
D-ribulose 5-phosphate(2-) 
D-serine +  
D-tagatofuranose 1,6-bisphosphate(4-) 
D-tagatofuranose 6-phosphate(2-) 
D-threitol  
D-threoninate 
D-threonine +  
D-threoninium 
D-xylulose +   
D-xylulose 5-phosphate(2-) +  
dADP +  
dADP(3-) 
dafachronic acids +  
DAS734 
dATP(4-) 
dCDP 
dCDP(3-) +  
dCTP +   
dCTP(3-) 
deamido-NAD(+) +   
debrisoquin +   
decane-1,2-diol 
decanoate +  
decanoic acid +   
decanoyl-[acyl-carrier protein] 
decanoyl-CoA(4-) +  
decaprenyl diphosphate +  
decatromicin A 
decatromicin B 
deferasirox  
dehydro-D-arabinono-1,4-lactone(1-) 
dehydroabietic acid 
dehydroascorbide(1-) 
Dehydrochorismic acid 
dehydroeburiconic acid 
dehydroepiandrosterone +   
dehydroepiandrosterone sulfate  
dehydroepiandrosterone sulfate(1-) +  
Delta(4)-beta-D-GlcpA-(1->3)-D-GalpNAc4S +  
Delta(4)-beta-D-GlcpA-(1->4)-D-GlcpNS6S 
Delta(4)-beta-D-GlcpA2S-(1->3)-alpha-D-GlcpNAc 
Delta(4)-beta-D-GlcpA2S-(1->3)-beta-D-GalpNAc4S 
Delta(4)-beta-D-GlcpA2S-(1->3)-D-GalpNAc6S +  
Delta(4)-beta-D-GlcpA2S-(1->4)-beta-D-GlcpNS6S 
Delta(6)-trans,Delta(8)-cis-leukotriene B4 
delta-tocotrienol  
deoxyamidinoproclavaminic acid 
deoxycholate +  
deoxycholoyl-CoA(4-) 
deoxyhypusine +  
deoxylimonoic acid 
deoxyribonucleic acid +  
deoxyviolaceinic acid 
desferrialbomycins +  
desferrioxamine G 
desmethylnaproxen  
desmethylnaproxen sulfate 
desmosterol +   
dethiobiotin +  
dethiobiotin(1-) 
dexketoprofen 
dGDP(3-) 
dGTP  
dGTP(3-) 
dianversicoside G 
dibenzo[a,l]pyrene  
dibromoacetic acid  
dibutyrin +   
dichloroacetic acid +   
diclofenac +   
diclofenac beta-D-glucosiduronic acid 
difloxacin  
difluoroacetic acid 
diglyceride +   
dihomolinoleate 
dihomolinoleic acid +  
dihydro-5-azaorotic acid 
dihydroartemisinic acid 
dihydrocamalexic acid +  
dihydroclavaminic acid 
dihydroferulic acid +  
dihydrofolate(2-) 
dihydrogen +   
dihydroisoferulic acid 
dihydrolipoamide +   
dihydrolipoate +  
dihydrolipoic acid +   
dihydrolipoylprotein 
dihydromonacolin L acid +  
dihydroorotic acid +   
Dihydrosinapic acid 
dihydrourocanic acid 
dihydroxyacetone +   
dihydroxyacetone phosphate  
Dihydroxyphenylpropionic acid 
dimethachlor OXA 
dimethenamid OXA 
dimethylbutyric acid +   
diodone 
dioxanecarboxylic acid +  
dioxygen +   
diphenylacetic acid  
diphosphate(3-) +  
discadenine 
disodium cytidine 5'-monophosphate 
Distichonic acid A 
Distichonic acid B 
dithiolanecarboxylic acid +  
dITP(4-) 
docosahexaenoic acid +   
docosaprenyl diphosphate 
dodecamethylpentasiloxane 
dodecanedioate(2-) 
dodecanedioic acid +   
dodecanoate +  
dodecaprenyl diphosphate +  
dolichol +   
dolichyl beta-D-glucosyl phosphate 
dolichyl D-mannosyl phosphate +  
dolichyl diphosphate 
dolichyl phosphate +   
dolichyl phosphate(2-) 
dopa +   
dopamine +   
dopaminium(1+) 
dTDP(3-) 
dTDP-4-dehydro-6-deoxy-alpha-D-glucose(2-) 
dTDP-4-dehydro-6-deoxy-L-mannose(2-) 
dTDP-alpha-D-glucose(2-) +  
dTDP-L-rhamnose +  
dTMP(2-) +  
dTTP(3-) 
dTTP(4-) 
dUDP(3-) 
dUMP(2-) +  
dUTP +  
dUTP(3-) 
dynorphin A-(1-12)(4+) 
dynorphin A-(1-13)(5+) 
dyspropterin +  
ecgoninium methyl ester(1+) 
ectoine 
Elagolix 
endocrocin 
enoxacin  
enrasentan  
epalrestat  
epiandrosterone +  
epiandrosterone sulfate 
epiandrosterone sulfate(1-) 
epidihydrocholesterin 
episterol +  
episteryl oleate 
episteryl palmitoleate 
epitestosterone +   
epoxy monocarboxylic acid +   
Epsilon-(Carboxyethyl)lysine 
ergosta-5,7,22,24(28)-tetraen-3beta-ol 
ergosta-5,7,24(28)-trien-3beta-ol 
ergosterol +   
ergosteryl 3-beta-D-glucoside 
ergosteryl oleate 
ergosteryl palmitoleate 
erucamide  
erythritol +  
erythro-4-hydroxy-L-glutamate(1-) 
erythro-4-hydroxy-L-glutamic acid 
erythro-5-hydroxy-L-lysine 
erythro-5-hydroxy-L-lysinium(1+) 
erythronate +  
erythronic acid +  
estetrol 
estra-1(10),4-diene-2,3,17-trione 
estra-1,5(10)-diene-3,4,17-trione 
estradiol +   
estriol +   
estrone +   
estrone 3-O-(beta-D-glucuronide)  
estrone 3-sulfate  
estrone 3-sulfate(1-) 
etacrynic acid  
ethanol +   
ethanolamine +   
ethanolaminium(1+) +  
ethoxide +  
ethyl (2R)-lactate +  
ethyl (2S)-lactate +  
ethyl 2-methylbutyrate 
Ethyl 4-methylphenoxyacetate 
ethyl acetate  
ethyl cyclohexanecarboxylate 
ethyl linolenate 
ethyl phenylglyoxylate 
ethyl-4-aminobutyrate 
ethylamine +   
ethylmalonic acid +   
etodolac +   
etofibrate  
etrasimod 
Eucomic acid, (-)- 
evatanepag 
F420-0 
FAD  
FAD(3-) 
FADH2(2-) +  
farnesoic acid +   
fatsicarpain B 
fatty acid +   
fecosterol +  
fecosteryl oleate 
fecosteryl palmitoleate 
fenofibric acid 
fenoprofen  
Fenoprop  
ferricytochrome b5 
ferricytochrome c +  
ferrocytochrome c +  
ferroheme b +   
ferroheme b(2-) 
ferulsinaic acid 
finafloxacin 
fleroxacin  
fluciclovine 
fluciclovine ((14)C) 
fluciclovine ((18)F) 
flufenacet OXA 
flufenpyr +  
flunoxaprofen 
fluoroalkanoic acid +   
flurbiprofen +   
fluroxypyr +  
fluthiacet +  
fMet-tRNA(fMet) 
FMN +   
FMN(3-) +  
FMNH2(2-) +  
folate(2-) 
folic acid +   
formaldehyde +   
formate +  
formic acid +   
formic acid-d2 
formyl-CoA(4-) 
FR207944 
fradafiban +  
fructosylglycine 
fruticoside B 
fruticoside C 
fruticoside D 
fruticoside E 
Fukiic acid 
fumarate(2-) +  
fumimycin 
fumisoquin C 
furoic acid +   
Fuscoatramide 
FX1 
gabapentin +   
gabapentin enacarbil 
Gaburedin D 
galactarate(1-) 
galactarate(2-) 
galactaric acid +   
galactitol +  
galactonic acid +  
gamma-amino-beta-hydroxybutyric acid +  
gamma-amino-gamma-cyanobutanoic acid +  
gamma-aminobutyrate +   
gamma-aminobutyric acid +   
A gamma-amino acid that is butanoic acid with the amino substituent located at C-4.
gamma-CEHC beta-glucuronide 
gamma-Glu-Ala 
gamma-Glu-Ala(1-) 
gamma-Glu-Gln 
gamma-Glu-Gln(1-) 
gamma-Glu-Glu 
gamma-Glu-Glu(2-) 
gamma-Glu-Gly 
gamma-Glu-Ile 
gamma-Glu-Leu 
gamma-Glu-Met 
gamma-Glu-Met(1-) 
gamma-Glu-Tyr 
gamma-Glu-Tyr(1-) 
gamma-Glu-Val 
gamma-Glu-Val(1-) 
gamma-glutamylphenylalanine 
gamma-glutamylthreonine +  
gamma-linolenate +  
gamma-linolenic acid +   
gamma-linolenoyl-CoA(4-) 
GDP(3-) +  
GDP-4-dehydro-6-deoxy-alpha-D-mannose(2-) 
GDP-alpha-D-mannose +  
GDP-alpha-D-mannose(2-) 
GDP-glucose +   
GDP-L-fucose(2-) 
GDP-mannose +  
gemifloxacin +  
geranyl diphosphate(3-) 
geranyl phosphate 
germacra-1(10),4,11(13)-trien-12-oic acid 
geumonoid 
ghrelin  
gibberellin A1(1-) 
gibberellin monocarboxylic acid +   
Gln-tRNA(Gln) 
globisporamic acid 
glomosporin 
Glu-Cys 
Glu-tRNA(Glu) 
glucarate(2-) +  
glucaric acid +   
glucoheptonic acid 
glucuronic acid +   
glutaconate(2-) +  
glutaconic acid +  
glutarate(1-) +  
glutarate(2-) +  
glutaric acid +   
glutaryl-CoA(5-) 
glutathionate(1-) +  
glutathione +   
glutathione disulfide(2-) 
glutaurine 
Gly-Phe zwitterion 
Gly-tRNA(Gly) 
Gly-Val 
glyceraldehyde 3-phosphate +   
glyceraldehyde 3-phosphate(2-) 
glycerate +  
glycerol +   
glycerol 1-phosphate +   
glycerone phosphate(2-) 
glycine +   
glycochenodeoxycholate +  
glycochenodeoxycholic acid +   
glycocholate +  
glycocholic acid +   
glycodeoxycholate +  
glycodeoxycholic acid +   
glycogen  
glycohyocholate 
glycohyocholic acid 
glycolaldehyde +   
glycolate +  
glycolithocholate 
glycosylglucopyranuronic acid +  
glycylglycine 
glycylglycine zwitterion 
glyoxylate +  
glyoxylic acid +   
gondamide 
gondoate +  
grandiflorenic acid 
GSK2181236A  
GSK2879552 
GTP(3-) +  
GTP(4-) +  
Guamamide 
guanidinoacetic acid 
guanine +   
guanosine 5'-monophosphate(2-) +  
GW 0742 
GW 2433  
GW 409544 
GW 501516 +   
GW 501516 sulfone 
GW 501516 sulfoxide +  
GW 7647  
gypsogenin +  
hadacidin 
haloacetic acid +   
Hansfordiol H 
Hansfordiol I 
hbas#10 
hederacine A 
hederacine B 
helvolic acid +  
heme a +  
heme o +  
henicosaprenyl diphosphate 
heparan sulfate  
heptadecaprenyl diphosphate 
heptafluorobutyric anhydride 
heptaprenyl diphosphate +  
hexacosanoyl-CoA +  
hexadec-2-enoyl-CoA +  
hexadecan-1-ol +  
hexadecanal +  
hexadecanedioate(2-) 
hexadecanedioic acid +  
hexadecanoate +   
hexadecaprenyl diphosphate 
hexafluoropropylene oxide trimer acid 
hexan-2-ol 
hexanoate +   
hexanoic acid +   
hexanoyl-CoA +   
hexaprenyl diphosphate +  
HEXYL 3-DEOXY-ALPHA-L-RIBO-HEXOPYRANOSIDE 
hexyl butyrate 
hexyl heptanoate 
His-tRNA(His) 
histamine +   
histaminium 
Hoiamide C 
holo-[acyl-carrier protein] 
Homatropine  
homocitrate(3-) 
homocysteine zwitterion 
homocystine +  
homocystine zwitterion +  
homogentisate 
homogentisic acid 
homoisocitrate(3-) +  
homoplatensimide A +  
homovanillate 
homovanillic acid +   
hopantenic acid 
hordenine 
HP dp02 0009 
human blood serum metabolite +   
human urinary metabolite +   
human xenobiotic metabolite +   
hyaluronic acid  
hydantoin-5-propionic acid 
hydrogen cyanide +   
hydrogen peroxide +   
hydrogen sulfide +   
hydrogencarbonate +   
hydrogenphosphate +  
hydrogensulfite +   
hydrosulfide +  
hydroxidodioxidosulfidosulfate(1-) 
hydroxy monocarboxylic acid +   
hydroxyacetone +  
hydroxybenzyltartaric acid 
hydroxybutyric acid +   
hyodeoxycholate +  
hyodeoxycholic acid +   
hypochlorous acid +   
hypotaurine +   
hypothiocyanous acid 
ibha#10 
ibha#16 
ibha#18 
ibha#20 
ibha#22 
ibha#24 
ibha#26 
ibha#28 
ibha#30 
ibho#10 
ibho#16 
ibho#18 
ibho#20 
ibho#22 
ibho#24 
ibho#26 
ibufenac  
ibuprofen +   
icas#1 
icas#10 +  
icas#12 
icas#14 
icas#16 +  
icas#18 +  
icas#20 +  
icas#22 +  
icas#9 
icos#1 
icos#10 
icos#16 
icos#18 
icos#9 
icosan-1-ol +  
icosanoate +  
icosanoyl-CoA +  
icosaprenyl diphosphate 
icosatetraenoic acid +   
IDP(3-) 
iduronic acid +  
ifetroban 
Ile(5)-angiotensin II  
Ile(5)-angiotensin II dizwitterion 
Ile-Ile 
Ile-tRNA(Ile) 
iloprost  
imidazol-2-ylacetic acid 
imidazol-4-ylacetate 
imidazol-4-ylacetic acid 
imidazol-5-ylacetic acid 
imidazole-4-acetaldehyde 
IMP +   
IMP(2-) +  
indanomycin 
indol-3-ylacetaldehyde  
indole +   
indole-1-acetic acid 
indole-3-acetate 
indole-3-acetic acid +   
indole-3-butyric acid +   
indole-3-carboxylic acid +   
indole-5,6-quinone-2-carboxylic acid 
indolecarboxylic acid +   
indoline-2-carboxylic acid 
indoprofen  
indoxyl sulfate  
inosine +   
Ins-1-P-6-Man-1-6-Ins-1-P-Cer(d18:0/2-OH-26:0) 
Ins-1-P-6-Man-1-6-Ins-1-P-Cer(d18:0/26:0) +  
Ins-1-P-6-Man-1-6-Ins-1-P-Cer(t18:0/2,3-OH-26:0) 
Ins-1-P-6-Man-1-6-Ins-1-P-Cer(t18:0/26:0) 
Ins-1-P-6-Man-beta1-3-Ins-1-P-Cer(t18:0/2-OH-26:0) 
Ins-1-P-6-Man-beta1-6-Ins-1-P-Cer(d18:0/2-OH-24:0) 
Ins-1-P-6-Man-beta1-6-Ins-1-P-Cer(d18:0/24:0) 
Ins-1-P-6-Man-beta1-6-Ins-1-P-Cer(t18:0/2,3-OH-24:0) 
Ins-1-P-6-Man-beta1-6-Ins-1-P-Cer(t18:0/2-OH-24:0) 
Ins-1-P-6-Man-beta1-6-Ins-1-P-Cer(t18:0/24:0) 
Ins-1-P-Cer(d18:0/2-OH-24:0) +  
Ins-1-P-Cer(d18:0/2-OH-26:0) +  
Ins-1-P-Cer(d18:0/24:0) +  
Ins-1-P-Cer(d18:0/26:0) +  
Ins-1-P-Cer(t18:0/2,3-OH-24:0) +  
Ins-1-P-Cer(t18:0/2,3-OH-26:0) +  
Ins-1-P-Cer(t18:0/2-OH-24:0) +  
Ins-1-P-Cer(t18:0/2-OH-26:0) +  
Ins-1-P-Cer(t18:0/24:0) +  
Ins-1-P-Cer(t18:0/26:0) +  
inumakoic acid 
iodide +   
iodine atom +   
Iopanoic acid  
iophenoic acid 
Iopodic acid  
Ipodate Sodium 
iptacopan 
iron(2+) +   
iron(3+) +   
isethionic acid  
isoamyl acetate 
isoamylol +   
isobutanol +   
isobutyl acetate 
isobutyraldehyde +   
isobutyrate +  
isobutyric acid anhydride 
isobutyryl-CoA +   
isobutyryl-CoA(4-) 
isocaproic acid +   
isocitrate(3-) +  
isolimonene 
isolithocholic acid 
isomaltose +  
Isomugineic acid 
Isoniazid pyruvate 
isonicotinic acid +   
isooctanediol dibutyrate 
isopentenyl diphosphate(3-) 
isopimaric acid  
isopropyl dodecanoate 
isopropyl palmitate  
Isoputreanine 
isoterpinolene 
isoursodeoxycholic acid 
isovaleryl-CoA(4-) +  
isoxadifen +  
itaconate(2-) 
itaconic acid +  
itaconyl-CoA(5-) 
ITP +  
ITP(3-) 
ITP(4-) 
kalimantacin A 
kalimantacin C 
karetazan 
kermesic acid 
keto-D-fructose 1,6-bisphosphate  
keto-phenylpyruvate 
kinetensin 
kinetensin (1-8) 
kinetensin (1-8)(2+) 
kinetensin(2+) 
kisspeptin-54 
KuFal194 
kynurenate 
kynurenic acid +   
kynurenine +   
L-2,4-diaminobutyric acid +  
L-2-amino-3-oxobutanoic acid 
L-2-amino-4-(hydroxymethylphosphinoyl)butanoic acid 
L-2-aminoadipate(1-) 
L-2-aminoadipic acid +  
L-3-oxoalaninate 
L-4-hydroxyglutamic semialdehyde 
L-alloisoleucine +  
L-allothreonine 
L-allysine +  
L-alpha-aminobutyric acid +  
L-arabinitol +  
L-arabinose +  
L-argininium(1+) +  
L-ascorbate +  
L-asparagine +   
L-aspartate(1-) +  
L-aspartic 4-semialdehyde 
L-aspartic acid +   
L-citrulline +  
L-citrulline zwitterion +  
L-cystathionine  
L-cysteate(1-) +  
L-cysteic acid 
L-cysteine +   
L-cysteine glutathione disulfide 
L-cysteine hydrochloride +  
L-cysteine hydrochloride hydrate 
L-cysteinylglycine +  
L-cysteinylglycine zwitterion 
L-cystine +   
L-cystine anion 
L-dopa +  
L-dopa(1-) +  
L-dopachromate 
L-dopaquinone 
L-erythrulose +  
L-fucopyranose 1-phosphate +  
L-fucose +  
L-fuculose +  
L-galactonate +  
L-gamma-Glu-L-Thr 
L-gamma-Glu-L-Thr(1-) 
L-gamma-glutamyl phosphate(2-) 
L-gamma-glutamyl-L-cysteinate(1-) 
L-gamma-glutamyl-L-cysteine +   
L-glucitol 
L-glutamate(1-) +   
L-glutamic 5-semialdehyde +  
L-glutamic acid +   
L-glutamine +   
L-gulonate +  
L-gulono-1,4-lactone 
L-histidinate(1-) 
L-histidinate(2-) 
L-histidine +   
L-histidinium(1+) +  
L-histidinium(2+) 
L-histidinol +  
L-histidinol phosphate(1-) 
L-histidinol(1+) 
L-homoarginine  
L-homocarnosine 
L-homocitrulline +  
L-homocitrulline zwitterion 
L-homocysteine thiolactone 
L-homoserine +  
L-iditol 
L-isoleucinate 
L-isoleucine +   
L-isoleucinium +  
L-kynureninate 
L-kynurenine +  
L-leucinate +  
L-leucine +   
L-leucinium +  
L-lysinate 
L-lysine +   
L-lysine zwitterion 
L-lysinium(1+) +  
L-lysinium(2+) +  
L-methioninate +   
L-methionine +   
L-methioninium +  
L-o-tyrosine +  
L-ornithinate +  
L-ornithinium(2+) 
L-phenylalaninate +  
L-phenylalanine +   
L-phenylalaninium +  
L-pipecolate 
L-pipecolic acid +  
L-prolinate +  
L-proline +   
L-prolinium +   
L-saccharopinate(1-) 
L-saccharopine 
L-selenocysteine +   
L-serine +   
L-sorbose +  
L-threonate 
L-threoninate 
L-threonine +   
L-threoninium +  
L-thyroxine +  
L-tryptophan +   
L-tryptophanamide +  
L-valine +   
L-xylonate 
L-xylulose +  
laccaic acid D +  
Laccarin A 
lactate +   
lactose +   
Lagriamide 
lancifodilactone F 
lancilactone C 
lanost-8-ene-3beta,30-diol  
lanosterol +   
lanosteryl oleate 
lanosteryl palmitoleate 
lansioside A 
lasalocid  
lauroyl-CoA(4-) +  
lesinurad  
Leu-enkephalin  
Leu-Leu 
Leu-tRNA(Leu) 
leukotriene A4 +   
leukotriene A4(1-) 
leukotriene B4 +   
leukotriene B4(1-) 
leukotriene C4 +   
leukotriene C4(2-) 
leukotriene D4  
leukotriene E4(1-) 
leukotriene F4 
levoglucosan +  
licofelone  
lignin cw compound-2047 
lignin cw compound-2055 
limonene +   
linoleamide  
lipoamide +   
lipoate +  
lipoxin A4 +   
lipoxin B4 +  
lipoyl-AMP(1-) +  
lipoylprotein 
lithocholate +  
lithocholic acid +   
lithocholyl-CoA 
lobohedleolide 
lonazolac 
lonidamine +   
loxoprofen +   
LSM-24476 
lugdunin 
lumiracoxib  
Lys-tRNA(Lys) 
lysophosphatidylcholine +   
lysophosphatidylcholine 20:2 +  
lysophosphatidylcholine 20:5 +  
lysophosphatidylcholine 22:4 +  
lysophosphatidylcholine(0:0/16:0) +  
lysophosphatidylcholine(0:0/16:1) +  
lysophosphatidylcholine(0:0/18:0) +  
lysophosphatidylcholine(0:0/18:2) +  
lysophosphatidylcholine(0:0/20:4) +  
lysophosphatidylcholine(0:0/20:5) 
lysophosphatidylcholine(16:1/0:0) +  
lysophosphatidylcholine(18:0/0:0) 
lysophosphatidylcholine(18:2/0:0) +  
lysophosphatidylcholine(20:4/0:0) +  
lysophosphatidylethanolamine 16:0 +  
lysophosphatidylethanolamine 18:2 +  
m-tyramine  
m-tyraminium 
Maculalactone M 
madecassic acid +   
malonate(2-) +  
malonic acid +   
malonyl-CoA(5-) 
maltose +   
Malyngamide 3 
Man-1-6-Ins-1-P-Cer(d18:0/2-OH-26:0) +  
Man-1-6-Ins-1-P-Cer(d18:0/26:0) +  
Man-1-6-Ins-1-P-Cer(t18:0/2,3-OH-26:0) +  
Man-1-6-Ins-1-P-Cer(t18:0/2-OH-26:0) 
Man-1-6-Ins-1-P-Cer(t18:0/26:0) +  
Man-beta1-6-Ins-1-P-Cer(d18:0/2-OH-24:0) +  
Man-beta1-6-Ins-1-P-Cer(d18:0/24:0) +  
Man-beta1-6-Ins-1-P-Cer(t18:0/2,3-OH-24:0) +  
Man-beta1-6-Ins-1-P-Cer(t18:0/2-OH-24:0) +  
Man-beta1-6-Ins-1-P-Cer(t18:0/24:0) +  
mannan +  
mannarate(2-) +  
mannaric acid +  
mannitol +   
mannose-(1D-myo-inositol 1-phosphate)2 
mannose-1D-myo-inositol 1-phosphate 
marbofloxacin  
marinolic acid C 
martefragin A 
mbas#10 
Meclofenoxate  
melatonin +   
melibiose +   
menaquinone-4 +   
menaquinone-8 
Merphalan 
Mersalyl acid 
mesaconate(2-) 
mesaconic acid +  
mesaconyl-CoA 
mesalamine  
meso-2,6-diaminopimelic acid +  
meso-2,6-diaminopimelic acid dizwitterion 
Met-enkephalin 
Met-tRNA(Met) 
metazachlor OXA 
methacrylyl-CoA  
methanethiol +   
methanol +   
methionine +   
methionine S-oxide +  
methoxide 
methoxyacetic acid  
methyl 2-[(7-hydroxy-4,6-dimethyl-1-oxo-3H-2-benzouran-5-yl)oxy]acetate 
methyl 3-phenylpropanoate 
methyl 4-(3,4-dihydroxybenzamido)butanoate 
Methyl 4-(diaminomethylideneamino)butanoate 
methyl cyclohexanecarboxylate 
methyl icosapentaenoate 
methyl phenylglyoxalate 
methyl red 
methylammonium +  
methylbutyric acid +   
methylcobalamin  
methylcyclohexane 
methylcyclopentane 
methylene group 
methylglyoxal +   
methylmalonate(1-) 
methylmalonate(2-) 
methylmalonic acid +   
methylmalonyl-CoA +  
methylsuccinic acid 
metrizoic acid 
midafotel 
Mildiomycin 
miroprofen 
mitiglinide  
monensin A  
mono(glucosyluronic acid)bilirubin(2-) 
mono-isopropyl-disopyramide  
monoacylglycerol 14:0 +  
monoacylglycerol 16:0 +   
monoacylglycerol 16:1 +  
monoacylglycerol 18:0 +  
monoacylglycerol 18:1 +   
monoacylglycerol 18:2 +  
monoacylglycerol 18:3 +  
monoacylglycerol 20:5 +  
monobutyrin 
monodehydro-L-ascorbate(1-) 
monodictyphenone 
monotropein  
montelukast +   
motualevic acid A 
motualevic acid F 
mupirocin 
muramic acid +  
murideoxycholate 
murideoxycholic acid 
MXNB 
MXNH 
MXNP 
mycophenolic acid +   
Mycosporine glutamicol 
Mycosporine hydroxyglutamicol 
Mycosporine-GABA 
myo-inositol +   
myo-inositol 1,3,4,5,6-pentakisphosphate(10-) 
myo-inositol 1,3,4,6-tetrakisphosphate(8-) 
myo-inositol 1,3-bisphosphate 
myo-inositol hexakisphosphate  
myo-inositol hexakisphosphate(12-) 
myristamide 
myristoyl-[acyl-carrier protein] 
myristoyl-CoA(4-) +  
myrsinoic acid B  
myrsinoic acid C 
myrsinoic acid F 
N(1),N(12)-diacetylsperminium(2+) 
N(1)-(5-phospho-D-ribosyl)glycinamide(1-) +  
N(1)-acetylspermidinium(2+) 
N(1)-acetylspermine 
N(1)-acetylsperminium(3+) 
N(1)-isopropyl-2-methylpropan-1,2-diamine 
N(2),N(2)-dimethylguanosine 
N(2)-acetyl-L-lysine 
N(2)-acetyl-L-lysine zwitterion 
N(2)-acetyl-L-ornithine 
N(2)-acetyl-L-ornithine zwitterion 
N(2)-formyl-N(1)-(5-phospho-D-ribosyl)glycinamide(2-) +  
N(2)-methylguanine 
N(2)-phenylacetyl-L-glutaminate 
N(2)-phenylacetyl-L-glutamine 
N(4)-\{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-[alpha-L-fucosyl-(1->6)]-N-acetyl-beta-D-glucosaminyl\}-L-asparagine 
N(5)-[(Z)-amino(hydroxyimino)methyl]ornithine +  
N(6),N(6),N(6)-trimethyl-L-lysine +  
N(6)-(1,2-dicarboxylatoethyl)-AMP(4-) 
N(6)-acetyl-L-lysine +  
N(8)-acetylspermidine 
N(8)-acetylspermidinium(2+) 
N(alpha)-acetyl-L-arginine +   
N(pros)-methyl-L-histidine +  
N(tele)-methyl-L-histidine +  
N(tele)-methylhistamine  
N(tele)-methylhistaminium 
N,N'-diacetylchitobiose +  
N,N'-diacetylchitobiosyldiphosphodolichol 
N,N'-diformyldityrosine 
N,N-dimethylacetamide  
N,N-dimethylethanolamine phosphate 
N,N-dimethylglycine  
N-(15Z-tetracosenoyl)ethanolamine 
N-(2,3-dihydroxyhexacosanoyl)-(4R)-hydroxysphinganine +  
N-(2-furoyl)glycinate 
N-(2-furoyl)glycine 
N-(2-hydroxyhexacosanoyl)sphinganine +  
N-(2-hydroxyhexacosanyl)-(4R)-phytosphingosine 
N-(2-hydroxyphenyl)malonamic acid 
N-(2-hydroxytetracosanoyl)phytosphingosine +  
N-(2-hydroxytetracosanoyl)sphinganine +  
N-(2-methylbutanoyl)glycine 
N-(3,4-dichlorophenyl)malonamic acid 
N-(3-carboxypropanoyl)-N-hydroxyputrescine 
N-(4-coumaroyl)-L-homoserine lactone 
N-(5-phosphonato-beta-D-ribosyl)anthranilate 
N-(butanoyl)ethanolamine 
N-(trans-4'-nitro-4-stilbenyl)-N-methyl-5-aminopentanoic acid 
N-[(9-beta-D-ribofuranosylpurin-6-yl)carbamoyl]threonate 
N-[(9-beta-D-ribofuranosylpurin-6-yl)carbamoyl]threonine 
N-[(9Z)-hexadecenoyl]glycine 
N-[(E)-4-ammoniobutylidene]propane-1,3-diaminium 
N-[(E)-\{[(Z)-2-amino-1,2-dicyanoethenyl]imino\}methyl]phenylalanine 
N-[(R)-4-phosphonatopantothenoyl]-L-cysteinate(3-) 
N-[(R)-pantothenoyl]-L-cysteinate 
N-[(S)-lactoyl]-L-phenylalanine 
N-[2-methoxy-5-(\{[2-(2,4,6-trimethoxyphenyl)ethenyl]sulfonyl\}methyl)phenyl]glycine +  
N-acetyl-alpha-D-glucosamine 1-phosphate 
N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->4)-D-glucose +  
N-acetyl-alpha-neuraminyl-(2->6)-N-acetyl-D-galactosamine +  
N-acetyl-beta-D-galactosaminyl-(1->3)-alpha-D-galactosyl-(1->4)-beta-D-galactosyl-(1->4)-beta-D-glucosylceramide +  
N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosylceramide(d18:1(4E)) +  
N-acetyl-beta-D-glucosaminyl-(1->3)-N-acetyl-D-galactosaminyl group +  
N-acetyl-beta-D-glucosaminyl-1,6-(N-acetyl-beta-D-glucosaminyl-1,3)-N-acetyl-D-galactosaminyl group 
N-acetyl-D-galactosamine +  
N-acetyl-D-galactosamine 1-phosphate +  
N-acetyl-D-galactosaminic acid 
N-acetyl-D-glucosamine 6-phosphate +  
N-acetyl-D-glucosamine 6-phosphate(2-) +  
N-acetyl-D-glucosaminyldiphosphodolichol 
N-acetyl-D-mannosamine 6-phosphate(2-) 
N-acetyl-L-2-aminoadipic acid 
N-acetyl-L-alanine +  
N-acetyl-L-aspartate(2-) +  
N-acetyl-L-aspartic acid +   
N-acetyl-L-cysteinate +  
N-acetyl-L-cysteine +   
N-acetyl-L-gamma-glutamyl phosphate(3-) 
N-acetyl-L-glutamate(2-) +  
N-acetyl-L-glutamic acid 
N-acetyl-L-glutamine 
N-acetyl-L-isoleucinate 
N-acetyl-L-serine +  
N-acetylcadaverine 
N-acetylcitrulline +  
N-acetylglycinate +   
N-acetylglycine +  
N-acetylhistamine 
N-acetylisoleucine +  
N-Acetylisoputreanine 
N-acetylkynurenine 
N-acetylmethionine +   
N-acetylneuraminate +  
N-acetylneuraminic acid +   
N-acetylneuraminic acid 9-phosphate 
N-acetylneuraminlactose sulfate 
N-acetylputrescinium 
N-acetylserotonin  
N-acyl-beta-D-galactosylsphingosine +  
N-acyl-gamma-aminobutyric acid +  
N-acylsphinganine +   
N-acylsphingosine +   
N-acylsphingosine 1-phosphate(2-) +  
N-arachidonoyl-2-oxoserotonin 
N-Arachidonoyl-3-hydroxy-g-Aminobutyric Acid 
N-arachidonoyl-3-hydroxy-gamma-aminobutyric acid 
N-arachidonoylglycinate 
N-arachidonoylserotonin 
N-benzoyl-4-methoxyanthranilic acid 
N-benzoylglycinate 
N-butanoylserotonin 
n-butyl oleate 
N-butyl-N-(3-carboxypropyl)nitrosamine 
N-butylformamide 
N-butyryl-1-palmitoyl-2-linoleoyl-sn-glycero-3-phosphoethanolamine 
N-carbamoyl-beta-alaninate 
N-carbamoyl-D-phenylglycine 
N-carbamoyl-L-aspartate(2-) 
N-carbamoylaspartic acid +  
N-carbamoylglutamic acid 
N-carbamoylglycine +  
N-carboxyethyl-gamma-aminobutyric acid 
N-docosanoyltaurine 
N-ethylperfluorooctane sulfonamidoacetic acid 
N-formimidoyl-L-glutamate(2-) +  
N-formyl-L-kynurenine +  
N-formyl-L-tyrosine 
N-formylanthranilate 
N-glycoloylneuraminate +  
N-hexacosahexaenoylsphingosine 
N-hexacosanoylphytosphingosine +  
N-hexacosanoylsphinganine +  
N-hexadecanoylglycine +  
N-hexadecanoylsphinganine-1-phosphocholine 
N-isovaleryl-L-homoserine lactone 
N-Linoleoyl-4-Aminobutyric Acid 
N-methylbutan-2-amine 
N-methylethanolaminium phosphate(1-) 
N-methylhippuric acid 
N-methylnorsalsolinol 
N-methylperfluorooctane sulfonamidoacetic acid 
N-methylphenylethanolamine 
N-methylphenylethanolaminium 
N-methylproline 
N-methylproline zwitterion 
N-methylputrescinium(2+) 
N-methylserotonin 
N-methyltyraminium 
N-nitroso-N-methyl-4-aminobutyric acid  
N-octadecanoylglycine 
N-Oleoyl GABA 
N-Palmitoyl GABA 
N-phosphocreatinate(2-) 
N-phosphocreatine  
N-propylbenzamide 
N-ribosylnicotinamide  
N-Stearoyl GABA 
N-tetracosanoylphytosphingosine +  
N-tetracosanoylsphinganine +  
NAD(1-) +  
NADH(2-) +  
NADP(3-) 
NADPH(4-) +  
nalidixic acid  
nanaomycin A 
nandrolone +   
naphthylacetic acid +   
naphthyloxyacetic acid +  
naproxen +   
neocasomorphin 
neopentalenolactone D 
Neu5Ac-(alpha-2->3)-D-GalpNAc 
Neu5Ac-?-(2->3)-D-Galp 
neurosporaxanthin 
neurotensin  
neurotensin (1-12) 
neurotensin (1-12)(1+) 
neurotensin (1-7) 
neurotensin (1-8) 
neurotensin(1+) 
nicofibrate 
nicotinamide +   
nicotinate +   
nicotinate D-ribonucleotide(2-) 
nicotinic acid-adenine dinucleotide phosphate  
nifedipine  
ninhydrin  
Nitracidomycin A 
Nitracidomycin B 
nitric oxide  
nitrite +   
NMN(-) 
nocamycin E +  
nocardicin E 
nocardicin F 
nociceptin  
nonadecaprenyl diphosphate 
nonanal +   
nonaprenyl 4-hydroxybenzoate 
nonaprenyl diphosphate +  
NOP 
NOPM 
nordazepam  
Norhyoscyamine 
norlaudanosoline +   
norsalsolinol +  
NP25301 
nygerone A 
O(4')-sulfo-L-tyrosinate(1-) 
O(4')-sulfo-L-tyrosine 
O(4)-methylthymine 
O-(2-tetradecenoyl)carnitine 
O-(3-hydroxyvaleryl)-L-carnitine 
O-(dimethylnonenoyl)carnitine 
O-[(5Z)-tetradecenoyl]-L-carnitine 
O-acetyl-L-carnitine  
O-acetyl-L-homoserine 
O-acetyl-L-serine +  
O-acetylcarnitine +   
O-benzoylecgonine 5-carboxypentyl ester 
O-butanoylcarnitine +   
O-decanoyl-L-carnitine +  
O-dodecanoylcarnitine +  
O-glutaroyl-L-carnitine +  
O-heptadecanoylcarnitine 
O-hexanoyl-L-carnitine +  
O-hexanoylcarnitine +  
O-isobutyryl-L-carnitine 
O-isobutyrylcarnitine +  
O-isovalerylcarnitine +  
O-linoleyl-L-carnitine 
O-octadecanoyl-L-carnitine 
O-octanoyl-L-carnitine +  
O-oleoylcarnitine 
O-palmitoyl-L-carnitine 
O-phospho-L-serine +  
O-phosphoethanolamine +  
O-phosphonato-L-homoserine(2-) 
O-phosphonato-L-serine(2-) +  
O-phosphonatoethanaminium(1-) 
O-phosphonatooxy-D-serine(2-) 
O-phosphoserine +   
O-propanoylcarnitine +   
O-stearoylcarnitine 
O-succinyl-L-homoserinate(1-) 
O-succinyl-L-homoserine 
O-succinylcarnitine 
O-tetradecanoyl-L-carnitine +  
O-tiglylcarnitine +  
o-tyrosine 
O-undecenoylcarnitine 
ochratoxin B  
octadecadienoate +  
octadecan-1-ol +   
octadecanoate +  
octadecanoic acid +   
octadecaprenyl diphosphate 
octan-3-ol 
octanoate +  
octanoic acid +   
octanoyl-[acyl-carrier protein] 
octanoyl-CoA(4-) +  
octaprenyl diphosphate +  
octopamine +   
oleamide  
oleate +  
oleoyl-CoA(4-) 
olivetolic acid +   
omega-3 fatty acid +   
omega-hydroxymenaquinone-4 
omeprazole +   
Ophthalmate 
ophthalmic acid 
orantinib  
ornithine +   
ornithinium(1+) +  
orotate +  
orotidine 5'-phosphate 
orotidine 5'-phosphate(3-) 
oscr#1 +  
oscr#10 +  
oscr#12 +  
oscr#13 +  
oscr#14 +  
oscr#16 +  
oscr#18 +  
oscr#20 +  
oscr#22 +  
oscr#24 +  
oscr#26 +  
oscr#28 +  
oscr#30 +  
oscr#32 +  
oscr#34 +  
oscr#36 +  
oscr#38 +  
oscr#9 +  
oxalate(1-) +  
oxalate(2-) +   
oxalic acid +   
oxaloacetate(2-) 
oxaprozin  
oxazolinecarboxylic acid +  
oxidopamine  
oxo monocarboxylic acid +   
Oxyphencyclimine  
P(1),P(4)-bis(5'-adenosyl) tetraphosphate(4-) 
P(1),P(4)-bis(5'-guanosyl) tetraphosphate(4-) 
P(1)-(5'-adenosyl),P(4)-(5'-guanosyl) tetraphosphate 
p-cresol +   
p-cresol sulfate 
p-cresol sulfate(1-) 
p-Glu-Arg-Pro-Arg-Leu-Ser-His-Lys-Gly-Pro-Met-Pro-Phe 
p-menthan-1-ol 
pacific blue +  
paclitaxel +   
palmitoleamide 
palmitoleate +  
palmitoleoyl-CoA(4-) +  
palmitoyl-[acyl-carrier protein] 
palmitoyl-CoA(4-) 
pantetheine 
pantetheine 4'-phosphate(2-) +  
pantocin A 
parabanic acid +  
patulin-4-bromothiophenol adduct 
pectin +  
pefloxacin +   
pemafibrate 
Peniamidone D 
penicillenic acid +  
pentadecaprenyl diphosphate 
pentan-1-ol +   
pentan-3-amine 
pentaprenyl diphosphate +  
peptide YY 
perfluorobutyric acid  
perfluorooctane sulfonamidoacetic acid 
perillic acid +   
perillyl aldehyde  
peroxynitrite 
perquinoline A 
perquinoline C 
pestalamide A 
pestalamide B 
Pestalotiopamide B 
Pestalotiopamide C 
Phe-tRNA(Phe) 
phenazine-1-carboxylic acid  
phenethyl acetate 
phenguignardic acid 
phenibut 
phenobutiodil 
phenoxyacetic acid +   
phenylacetaldehyde +   
phenylacetate +  
phenylacetic acid +   
phenylacetic acids +   
phenylacetyl-CoA(4-) +  
phenylacetylglycine +   
phenylacetylglycine(1-) 
phenylethanolamine +  
phenylethanolaminium 
phenylpyruvic acid oxime 
phosphate ion +   
phosphatidate(2-) +  
phosphatidyl-L-serine +  
phosphatidyl-N,N-dimethylethanolamine +  
phosphatidyl-N-methylethanolamine +  
phosphatidylcholine (16:0/20:5) 
phosphatidylcholine 16:2 
phosphatidylcholine 29:1 +  
phosphatidylcholine 35:3 +  
phosphatidylcholine 35:4 +  
phosphatidylcholine 36:4 +   
phosphatidylcholine 42:7 
phosphatidylethanolamine 19:1 
phosphatidylethanolamine 36:2 +  
phosphatidylethanolamine 36:3 +  
phosphatidylethanolamine 38:3 +  
phosphatidylethanolamine 38:4 +  
phosphatidylglycerol(1-) +  
phosphatidylserine 18:0 
phosphatidylserine 40:1 
phosphatidylserine 40:2 
phosphatidylserine 42:1 
phosphocholine +   
phosphoenolpyruvate  
phosphoenolpyruvic acid 
phosphonoacetic acid +   
phosphoric acid +   
phylloquinone  
phytanate +  
phytanoyl-CoA(4-) 
phytosphingosine +   
phytosphingosine 1-phosphate +  
picolinic acid +   
pimeloyl-CoA(5-) 
pipecolate +  
pipemidic acid  
piperidine +   
piperidinemonocarboxylic acid +   
piperonylic acid 
pirifibrate 
piromidic acid 
piscidic acid 
pivagabine 
plakortide F free acid 
platensic acid +  
platensimide A 
platensimycin B4 +  
PNCMB 
poly(N-acetyllactosamine)  
polysulfur  
porphobilinogen(1-) 
Portulacaxanthin II 
potassium atom +   
potassium(1+) +   
pre-putrebactin 
precorrin-2(7-) 
prednisolone-16-carboxylic acid +  
pregabalin  
pregnenolone +   
pregnenolone sulfate  
prenyl diphosphate(3-) 
presqualene diphosphate(3-) 
preuroporphyrinogen(8-) 
previtamin D3 
pristanal 
pristanic acid +  
pristanoyl-CoA +  
PRNB 
PRNH 
PRNP 
Pro-Hyp 
Pro-Hyp zwitterion 
Pro-tRNA(Pro) 
proclavaminic acid +  
progesterone +   
progesterone 3-O-(carboxymethyl)oxime +  
proline +   
prop-2-yn-1-ol +   
propachlor OXA 
propionate +   
propionyl-CoA(4-) +  
propyl butyrate 
propyl decanoate 
propyl propionate 
prostaglandin A1(1-) +  
prostaglandin A2 +   
prostaglandin B1  
prostaglandin B2 
prostaglandin C1(1-) 
prostaglandin C2 
prostaglandin D1 
prostaglandin D1(1-) 
prostaglandin D2 +   
prostaglandin D2 1-glyceryl ester 
prostaglandin D2(1-) 
prostaglandin D3  
prostaglandin E1 +   
prostaglandin E1(1-) +  
prostaglandin E2 +   
prostaglandin E2 1-glyceryl ester 
prostaglandin E2 2-glyceryl ester 
prostaglandin E2(1-) +  
prostaglandin E3  
prostaglandin F1alpha +   
prostaglandin F2alpha +   
prostaglandin F2alpha 1-glyceryl ester 
prostaglandin F2alpha 2-glyceryl ester 
prostaglandin F2alpha(1-) 
prostaglandin F2beta 
prostaglandin G1 
prostaglandin G1(1-) +  
prostaglandin G2 +   
prostaglandin G2 2-glyceryl ester 
prostaglandin H2 2-glyceryl ester 
prostaglandin H2(1-) 
prostaglandin H3 
prostaglandin I2 2-glyceryl ester 
prostaglandin I2(1-) +  
prostaglandin J2 +   
protirelin 
protobassic acid +  
protodeoxyviolaceinic acid 
protoporphyrinate 
protoporphyrinogen(2-) 
protoviolaceinic acid 
Pseudotrienic acid A 
Pseudotrienic acid B 
pseudouridine 5'-phosphate(2-) 
psychosine +  
psychosine sulfate 
psychosine(1+) 
pteroic acids +   
pterostilbene  
purinemonocarboxylic acid +  
Pyloricidin C 
Pyloricidin D 
pyochelin +  
pyraflufen +  
pyranmonocarboxylic acid +  
pyridinemonocarboxylic acid +   
pyridoxal +   
pyridoxal 5'-phosphate +   
pyridoxal 5'-phosphate(2-) 
pyridoxal hydrochloride 
pyridoxamine +   
pyridoxamine 5'-phosphate 
pyridoxamine 5'-phosphate(1-) 
pyridoxamine dihydrochloride 
pyridoxamine hydrochloride 
pyridoxaminium(1+) +  
pyridoxine +   
pyridoxine 5'-phosphate(2-) 
pyrimidinemonocarboxylic acid +   
pyriminobac +  
pyroglutamylglutaminate 
pyroglutamylglutamine 
pyrrolecarboxylic acid +  
pyrrolidinemonocarboxylic acid +   
quinaldate 
quinaldic acid 
quinclorac +  
quinolinate(1-) +  
quinolinate(2-) 
quinoline-4,6-diol 
quinoline-4,8-diol 
quinolinic acid  
rac-1-monolinoleoylglycerol 
raffinose +   
resolvin D5 
retinal +   
retinoic acid +   
retinol +   
ribavirin carboxylic acid 
ribitol +   
riboflavin(1-) +  
ribothymidine +  
ritalinic acid  
robenacoxib 
roburic acid 
ronifibrate 
rosmarinic acid +   
S(6)-acetyldihydrolipoamide +  
S(8)-(2-methylbutanoyl)dihydrolipoamide 
S(8)-(2-methylpropanoyl)dihydrolipoamide 
S(8)-(3-methylbutanoyl)dihydrolipoamide 
S(8)-aminomethyldihydrolipoamide 
S(8)-aminomethyldihydrolipoylprotein 
S(8)-glutaryldihydrolipoamide 
S(8)-succinyldihydrolipoamide 
S-(1,2-dichlorovinyl)-L-cysteine +   
S-(2-succinyl)-L-cysteine 
S-(hydroxymethyl)glutathione(1-) 
S-3100-CA +   
S-adenosyl-4-methylthio-2-oxobutanoate 
S-adenosyl-L-methioninate  
S-adenosyl-L-methionine +   
S-adenosylmethioninaminium 
S-butyryl-4'-phosphopantetheine 
S-formylglutathionate(1-) 
S-formylglutathione 
S-methyl-5-thio-alpha-D-ribose 1-phosphate(2-) 
S-methyl-5-thio-D-ribulose 1-phosphate(2-) 
S-methyl-L-methionine 
S-nitrosoglutathione  
S-sulfo-L-cysteine 
SAICAR(4-) 
salamidacetic acid 
salzmannianoside A 
sandaracopimaric acid 
santacruzamate A 
sapropterin +   
sarcosinate 
sarcosine +  
sarcosinium 
saroglitazar  
saturated monocarboxylic acid 
sch 210971 
sch 210972 +  
scyllo-inositol +   
Se-methylselenocysteine +   
sebacate(2-) 
sebacic acid +   
sedoheptulose 1,7-bisphosphate(4-) 
sedoheptulose 7-phosphate 
sedoheptulose 7-phosphate(2-) 
selenate +   
selenide +   
selenocysteine +   
selenophosphate 
Ser-tRNA(Ser) 
serotonin +   
serotonin(1+) 
shikimate +  
shikimic acid +   
sintofen 
siroheme(8-) 
sirohydrochlorin(8-) 
skatole  
smenospongines C 
sn-glycerol 3-phosphate 
sn-glycerol 3-phosphate(2-) 
sodium 3-hydroxybutyrate 
sodium ascorbate 
sodium atom +   
Sodium danshensu 
sodium dehydroepiandrosterone sulfate 
sodium glycochenodeoxycholate 
sodium glycodeoxycholate 
sodium glyoxylate 
sodium hexanoate 
sodium orotate 
sodium(1+) +   
sofalcone 
specialised pro-resolving mediator +   
spermidine(3+) +  
spermine(4+) +  
SPF-32629B 
sphinganine +   
sphinganine 1-phosphate(1-) 
sphinganine(1+) +  
sphingomyelin d18:1(1+) 
sphingosine +   
sphingosine 1-phosphate  
sphingosine 1-phosphate(1-) 
sphingosine(1+) +  
spongia-13(16),14-dien-19-oic acid 
squalene +   
Stachyline B 
Stachyline D 
stearoyl-CoA(4-) 
stellatic acid 
steviol +   
steviolbioside 
steviolmonoside +  
stipitatic acid 
Streptoverticillinone 
SU5402 
suaveolindole 
suberic acid +   
substance P 
succinate(2-) +  
succinyl-CoA(5-) 
sucrose +   
sulfate +   
sulfoglycolithocholate(2-) 
sulfometuron +  
sulindac +   
sulindac sulfide  
sulindac sulfone  
superoxide  
suprofen  
surugapyrrole A 
surugapyrrole B 
suxibuzone  
syringolin A 
tachysterol 3 
tafamidis  
tagatose 6-phosphate +  
tartrazine acid 
taurine +   
tauro-beta-muricholate 
tauro-beta-muricholic acid  
taurochenodeoxycholate +  
taurochenodeoxycholic acid +   
taurocholate +   
taurocholic acid  
taurodeoxycholate 
taurodeoxycholic acid +   
taurolithocholate 
taurolithocholic acid +   
taurolithocholic acid sulfate  
taurolithocholic acid sulfate(2-) 
tauroursocholate 
tauroursocholic acid 
tauroursodeoxycholic acid  
tazarotenic acid +   
testosterone +   
testosterone 17-glucosiduronic acid  
testosterone acetate 
tetracosanoate +  
tetracosanoic acid +   
tetracosanoyl-CoA 
tetradecan-2-ol 
tetradecanedioate(2-) 
tetradecanedioic acid +  
tetradecanoate +  
tetradecanoic acid +   
tetradecaprenyl diphosphate +  
tetragastrin 
tetrahydrofurancarboxylic acid +  
tetrahydropentoxyline 
tetrahydropteroyltri-L-glutamate(4-) 
tetranorbiotin 
tetratetracontane 
texazone 
theogallin 
thiadiazolecarboxylic acid +  
thiamine(1+) +   
thiamine(1+) carboxylic acid 
thiamine(1+) diphosphate(1-) 
thiamine(1+) monophosphate +  
thiamine(1+) monophosphate(2-) 
thiamine(1+) triphosphate 
thiamine(1+) triphosphate(4-) 
thiazepinemonocarboxylic acid +  
thiazinemonocarboxylic acid +  
thiazolidinemonocarboxylic acid +  
thiocyanate +   
thionitrous acid 
Thiophene-4,5-epoxide 
thioredoxin disulfide 
thioredoxin dithiol 
thiosulfate(2-) +   
Thiourocanic acid 
Thr-tRNA(Thr) 
thromboxane A2(1-) +  
thromboxane B1 +  
thromboxane B2 +   
thromboxane B3 
thymidine +   
thymine +   
tiaprofenic acid  
tienilic acid  
tiratricol  
TMC-52A 
TMC-52B 
TMC-52C 
TMC-52D 
tolbutamide  
tolmetin  
torasemide carboxylic acid 
tranexamic acid  
trans-1,2-dithiane-4,5-diol +  
trans-13-docosenamide 
trans-2-decenoic acid +  
trans-2-hexacosenoyl-CoA 
trans-2-octadecenoyl-CoA 
trans-3-Aminocyclopentane-1-carboxylic acid 
trans-3-methylglutaconyl-CoA(5-) 
trans-4-hydroxy-L-proline +  
trans-4-tert-butylcyclohexanecarboxylic acid 
trans-caffeate +  
trans-dec-2-enoyl-CoA(4-) 
trans-dodec-2-enoyl-CoA(4-) 
trans-heme d hydroxychlorin gamma-spirolactone 
trans-hex-2-enoyl-CoA 
trans-oct-2-enoyl-CoA 
trans-tetradec-2-enoyl-CoA(4-) 
trans-urocanate 
trans-urocanic acid  
trans-vaccenate(1-) 
triacylglycerol 50:6 +  
triacylglycerol 60:14 +  
triacylglycerol 62:15 +  
tributyrin  
trichlopyr  
trichloro(docosyl)silane 
trichloroacetic acid +   
tricosanoic acid +  
tridecan-1-ol 
tridecanal 
tridecaprenyl diphosphate +  
triethylene glycol monomethyl ether 
trimethylenediamine +   
trimethylenediaminium 
Trimethyltyrosine 
trinexapac +  
triphosphate(5-) +  
triptohypol B 
triptohypol C 
trisporic acid 
tRNA(Ala) +  
tRNA(Arg) +  
tRNA(Asn) +  
tRNA(Asp) +  
tRNA(Cys) +  
tRNA(Gln) +  
tRNA(Glu) +  
tRNA(Gly) +  
tRNA(His) +  
tRNA(Ile) +  
tRNA(Leu) +  
tRNA(Lys) +  
tRNA(Met) +  
tRNA(Phe) +  
tRNA(Pro) +  
tRNA(Ser) +  
tRNA(Thr) +  
tRNA(Trp) +  
tRNA(Tyr) +  
tRNA(Val) +  
Trolox 
tropodithietic acid 
trovafloxacin  
Trp-tRNA(Trp) 
tryptamine +   
tryptaminium +  
tryptophol +   
tubelactomicin A 
Tyr-tRNA(Tyr) 
tyramine +   
tyraminium 
tyropanoate 
Tyropanoate sodium 
ubiquinol-6 
ubiquinone-0  
ubiquinone-6 
ubiquinone-9  
UDP(3-) 
UDP-alpha-D-glucuronate(3-) 
UDP-alpha-D-glucuronic acid +   
UDP-alpha-D-xylose(2-) 
UDP-D-galactose +   
UDP-D-galactose(2-) +  
UDP-D-glucose(2-) +  
UDP-N-acetyl-alpha-D-galactosamine  
UDP-N-acetyl-alpha-D-glucosamine(2-) 
UDP-N-acetyl-D-galactosamine(2-) +  
undecanoate 
undecanoic acid +   
undecaprenyl diphosphate +  
uracil +   
uracil-6-ylacetic acid 
urate anion +  
urea +   
urea-1-carboxylate 
ureidoglycolic acid +  
uric acid +   
uridin-5-yloxyacetic acid 
uridine +   
uridine 5'-monophosphate +   
uridine 5'-monophosphate(2-) +  
urobilinogen 
urocanate +  
urocanic acid +   
uronic acid +   
uroporphyrin I 
uroporphyrin III 
uroporphyrinogen I 
uroporphyrinogen III(8-) 
ursodeoxycholate 
ursodeoxycholic acid +   
Usenamine D 
Usenamine E 
Usenamine F 
UTP(4-) +  
vadimezan  
Val-tRNA(Val) 
valerenic acid 
valsartan +   
vanchrobactin 
vanillylmandelate 
vanillylmandelic acid  
varespladib +   
vigabatrin  
vinyl benzoate 
violaceinic acid 
vosaroxin  
water +   
weigelic acid 
WF14865A 
WF14865B 
WHWLQLKPGQPMY 
xanthosine  
Xenocoumacin 1 
ximoprofen 
xylitol +   
yanuthone I 
yersiniabactin 
YIIKGLFWDPAC +  
YIIKGVFWDPAC +  
Youbetaoufene A1 
ZAPA 
Zeamine I 
ZG-2291 
zhankuic acid A +  
zhankuic acid B 
zhankuic acid C 
zinc(2+) +   
zolasartan 
zomepirac  
zymosterol +   
zymosterol intermediate 1c 
zymosterol intermediate 2 
zymosteryl oleate 
zymosteryl palmitoleate 

Synonyms
Related Synonyms: 4-aminobutanoic acid ;   4-aminobutyric acid ;   4Abu ;   Formula=C4H9NO2 ;   GABA ;   GAMMA-AMINO-BUTANOIC ACID ;   InChI=1S/C4H9NO2/c5-3-1-2-4(6)7/h1-3,5H2,(H,6,7) ;   InChIKey=BTCSSZJGUNDROE-UHFFFAOYSA-N ;   SMILES=NCCCC(O)=O ;   gamma-Aminobuttersaeure
Alternate IDs: CHEBI:1786 ;   CHEBI:193777 ;   CHEBI:20318 ;   CHEBI:40483
Xrefs: BPDB:2298 ;   CAS:56-12-2 ;   DrugBank:DB02530 ;   Drug_Central:1262 ;   Gmelin:49775 ;   HMDB:HMDB0000112 ;   KEGG:C00334 ;   KEGG:D00058 ;   KNApSAcK:C00001337 ;   LIPID_MAPS_instance:LMFA01100039
Xref Mesh: MESH:D005680
Xrefs: MetaCyc:4-AMINO-BUTYRATE ;   PDBeChem:ABU ;   PMID:10630630 ;   PMID:10930630 ;   PMID:16276116 ;   PMID:21614609 ;   PMID:22770225 ;   Reaxys:906818 ;   Wikipedia:Gamma-Aminobutyric_acid
Cyclic Relationships: is_conjugate_acid_of CHEBI:30566 ;   is_tautomer_of CHEBI:59888

paths to the root