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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC 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.

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Accession:CHEBI:74689 term browser browse the term
Definition:A member of the class of biopterins that consists of pterin bearing amino, oxo and 1,2-dihydroxypropyl substituents at positions 2, 4 and 7 respectively.
Synonyms:exact_synonym: 2-amino-7-(1,2-dihydroxypropyl)pteridin-4(1H)-one
 related_synonym: 7-Biopterin;   7-Isobiopterin;   Formula=C9H11N5O3;   InChI=1S/C9H11N5O3/c1-3(15)6(16)4-2-11-5-7(12-4)13-9(10)14-8(5)17/h2-3,6,15-16H,1H3,(H3,10,12,13,14,17);   InChIKey=LNXRKRFGNHXANN-UHFFFAOYSA-N;   SMILES=CC(O)C(O)c1cnc2c(n1)[nH]c(N)nc2=O
 xref: CAS:2582-88-9;   HMDB:HMDB0002263;   PMID:13981581;   PMID:3382399

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19841
    role 19792
      biological role 19792
        biochemical role 19328
          metabolite 19308
            primapterin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19841
    subatomic particle 19839
      composite particle 19839
        hadron 19839
          baryon 19839
            nucleon 19839
              atomic nucleus 19839
                atom 19839
                  main group element atom 19732
                    p-block element atom 19732
                      carbon group element atom 19636
                        carbon atom 19625
                          organic molecular entity 19625
                            organic molecule 19556
                              organic cyclic compound 19365
                                organic heterocyclic compound 18486
                                  organic heteropolycyclic compound 17874
                                    organic heterobicyclic compound 16808
                                      pteridines 10209
                                        pterins 9372
                                          biopterins 11
                                            primapterin 0
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