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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:75308 term browser browse the term
Definition:An androstanoid that is testosterone with an oxo group at position 19.
Synonyms:exact_synonym: (17beta)-17-hydroxy-3-oxoandrost-4-en-19-al
 related_synonym: Formula=C19H26O3;   InChI=1S/C19H26O3/c1-18-8-7-16-14(15(18)4-5-17(18)22)3-2-12-10-13(21)6-9-19(12,16)11-20/h10-11,14-17,22H,2-9H2,1H3/t14-,15-,16-,17-,18-,19+/m0/s1;   InChIKey=TXNCGXATKOMEQC-KOUJMVCDSA-N;   SMILES=[H][C@@]12CCC3=CC(=O)CC[C@]3(C=O)[C@@]1([H])CC[C@]1(C)[C@@H](O)CC[C@@]21[H]
 alt_id: CHEBI:800
 xref: HMDB:HMDB0003959;   KEGG:C05295;   MetaCyc:19-OXO-TESTOSTERONE;   PMID:2317517;   PMID:2363692;   PMID:3857612;   Reaxys:5980492

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19792
    chemical entity 19791
      group 19698
        organic group 18508
          3-oxo-Delta(4)-steroid group 7939
            3-oxo-Delta(4) steroid 7939
              testosterone 2848
                19-oxotestosterone 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19792
    subatomic particle 19788
      composite particle 19788
        hadron 19788
          baryon 19788
            nucleon 19788
              atomic nucleus 19788
                atom 19788
                  main group element atom 19675
                    p-block element atom 19675
                      carbon group element atom 19571
                        carbon atom 19560
                          organic molecular entity 19560
                            organic group 18508
                              organic divalent group 18501
                                organodiyl group 18501
                                  carbonyl group 18404
                                    carbonyl compound 18404
                                      carboxylic acid 18079
                                        carboacyl group 17368
                                          univalent carboacyl group 17368
                                            formyl group 7847
                                              aldehyde 7847
                                                steroid aldehyde 90
                                                  19-oxotestosterone 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.