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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:17643 term browser browse the term
Definition:A purine nucleoside that has formula C10H10N4O6.
Synonyms:exact_synonym: 9-(beta-D-ribofuranosyluronic acid)-1,9-dihydro-6H-purin-6-one
 related_synonym: 9-(beta-D-ribofuranuronosyl)-1,9-dihydro-6H-purin-6-one;   Formula=C10H10N4O6;   InChI=1S/C10H10N4O6/c15-4-5(16)9(20-6(4)10(18)19)14-2-13-3-7(14)11-1-12-8(3)17/h1-2,4-6,9,15-16H,(H,18,19)(H,11,12,17)/t4-,5+,6-,9+/m0/s1;   InChIKey=YALKLGGFZOUJBN-SOVPELCUSA-N;   SMILES=O[C@H]1[C@@H](O)[C@@H](O[C@@H]1C(O)=O)n1cnc2c1nc[nH]c2=O
 alt_id: CHEBI:12274;   CHEBI:2338
 xref: KEGG:C11631
 cyclic_relationship: is_conjugate_acid_of CHEBI:58218

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  CHEBI ontology 19875
    role 19825
      biological role 19825
        biochemical role 19360
          metabolite 19341
            fundamental metabolite 12666
              hypoxanthine 12
                9-riburonosylhypoxanthine 0
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  CHEBI ontology 19875
    subatomic particle 19873
      composite particle 19873
        hadron 19873
          baryon 19873
            nucleon 19873
              atomic nucleus 19873
                atom 19873
                  main group element atom 19763
                    p-block element atom 19763
                      carbon group element atom 19668
                        carbon atom 19657
                          organic molecular entity 19657
                            organic molecule 19586
                              organic cyclic compound 19395
                                organic heterocyclic compound 18511
                                  organic heteropolycyclic compound 17900
                                    organic heterobicyclic compound 16826
                                      imidazopyrimidine 5587
                                        purines 5585
                                          aminopurine 4413
                                            6-aminopurines 786
                                              adenine 780
                                                hypoxanthine 12
                                                  9-riburonosylhypoxanthine 0
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