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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.

Term:guanin-9-yl group
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Accession:CHEBI:30755 term browser browse the term
Synonyms:exact_synonym: 2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl
 related_synonym: Formula=C5H4N5O;   SMILES=N1C(N)=NC=2N(C=NC2C1=O)*

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19810
    chemical entity 19810
      group 19722
        cyclyl group 0
          heterocyclyl group 0
            organic heterocyclyl group 0
              purinyl group 0
                guanin-9-yl group 0
                  6-O-methyl guanin-9-yl group 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19810
    subatomic particle 19808
      composite particle 19808
        hadron 19808
          baryon 19808
            nucleon 19808
              atomic nucleus 19808
                atom 19808
                  main group element atom 19696
                    p-block element atom 19696
                      carbon group element atom 19599
                        carbon atom 19588
                          organic molecular entity 19588
                            organic molecule 19514
                              organic cyclic compound 19311
                                organic heterocyclic compound 18425
                                  organic heteropolycyclic compound 17838
                                    organic heterobicyclic compound 16763
                                      imidazopyrimidine 5444
                                        purines 5442
                                          aminopurine 4399
                                            2-aminopurines 4009
                                              guanine 3973
                                                guanin-9-yl group 0
                                                  6-O-methyl guanin-9-yl group 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.