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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:64686 term browser browse the term
Definition:A pyrrolopyrimidine that is 7-deazaguanine bearing a carboxamidine substituent at the 7 position.
Synonyms:exact_synonym: 2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
 related_synonym: 7-formamidino-7-carbaguanine;   Formula=C7H8N6O;   G(+) base;   InChI=1S/C7H8N6O/c8-4(9)2-1-11-5-3(2)6(14)13-7(10)12-5/h1H,(H3,8,9)(H4,10,11,12,13,14);   InChIKey=OBTVXWQPGMKACK-UHFFFAOYSA-N;   SMILES=NC(=N)c1c[nH]c2nc(N)[nH]c(=O)c12;   archaeosine base
 xref: PMID:22032275;   PMID:9242689
 cyclic_relationship: is_conjugate_base_of CHEBI:64684

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Term Annotations click to browse term
  CHEBI ontology 19875
    chemical entity 19875
      atom 19873
        nonmetal atom 19751
          nitrogen atom 18640
            nitrogen molecular entity 18640
              amidine 812
                carboxamidine 806
                  7-formamidino-7-deazaguanine 0
                    archaeosine + 0
Path 2
Term Annotations click to browse term
  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 group 18569
                              organic divalent group 18560
                                organodiyl group 18560
                                  carbonyl group 18468
                                    carbonyl compound 18468
                                      carboxylic acid 18142
                                        monocarboxylic acid 17513
                                          7-carboxy-7-deazaguanine 0
                                            7-formamidino-7-deazaguanine 0
                                              archaeosine + 0
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