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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:porfimer sodium
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Accession:CHEBI:60773 term browser browse the term
Definition:The sodium salt of porfimer. The purified component of haematoporphyrin derivative, it consists of a mixture of oligomeric porphyrins formed by ether and ester linkages of up to eight porphyrin units (n = 0-6), where R = CH(OH)Me and/or CH=CH2. After addition of hydrochloric acid and/or sodium hydroxide to pH 7.2 - 7.9, it is used as a photosensitiser in photodynamic therapy of non-small cell lung cancer, oesophageal cancer, and superficial bladder cancer. The drug is administered by slow intravenous injection and accumulates in malignant tissue. After 40-50 hours, it is activated by laser light at 630 nm, delivered to the tumour using a fibre optic guide. Subsequent spin transfer to oxygen molecules within the tissue, generates highly reactive singlet oxygen, and subsequent radical reactions generate superoxide and hydroxyl radicals. Propagation of radical reactions ultimately kills the tumour cells.
Synonyms:related_synonym: Formula=(C32H32N4O4R)0-6.C64H64N8Na5O9R2;   Photofrin;   porfimer sodico;   porfimere sodique;   porfimerum natricum
 xref: CAS:87806-31-3;   DrugBank:DB00707;   Reaxys:8537222


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Path 1
Term Annotations click to browse term
  CHEBI ontology 19880
    role 19850
      biological role 19848
        antimicrobial agent 18250
          antiviral agent 11343
            porfimer sodium 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19880
    subatomic particle 19878
      composite particle 19878
        hadron 19878
          baryon 19878
            nucleon 19878
              atomic nucleus 19878
                atom 19878
                  main group element atom 19817
                    main group molecular entity 19817
                      s-block molecular entity 19653
                        alkali metal molecular entity 14335
                          sodium molecular entity 13401
                            elemental sodium 13401
                              sodium(1+) 13401
                                sodium salt 13401
                                  organic sodium salt 1374
                                    porfimer sodium 0
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