Send us a Message



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

CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:phosphonous acid
go back to main search page
Accession:CHEBI:29261 term browser browse the term
Definition:A phosphorus oxoacid that has formula H3O2P.
Synonyms:exact_synonym: hydridodihydroxidophosphorus
 related_synonym: Formula=H3O2P;   H2PHO2;   InChI=1S/H3O2P/c1-3-2/h1-3H;   InChIKey=XRBCRPZXSCBRTK-UHFFFAOYSA-N;   SMILES=[H]P(O)O;   [PH(OH)2]



show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19898
    role 19868
      chemical role 19498
        donor 18946
          Bronsted acid 18827
            inorganic acid 16448
              pnictogen oxoacid 14982
                phosphorus oxoacid 14586
                  phosphonous acid 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19898
    subatomic particle 19896
      composite particle 19896
        hadron 19896
          baryon 19896
            nucleon 19896
              atomic nucleus 19896
                atom 19896
                  main group element atom 19835
                    p-block element atom 19835
                      chalcogen 19586
                        oxygen atom 19558
                          oxygen molecular entity 19558
                            hydroxides 19365
                              oxoacid 18801
                                pnictogen oxoacid 14982
                                  phosphorus oxoacid 14586
                                    phosphonous acid 0
paths to the root