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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:34739 term browser browse the term
Definition:A 3-hydroxy steroid that is estrone which carries two double bonds at positions 6 and 8. It is found in the urine of pregnant mare's and extensively used for estrogen replacement therapy in postmenopausal women.
Synonyms:exact_synonym: 3-hydroxyestra-1(10),2,4,6,8-pentaen-17-one
 related_synonym: (3aS,11aS)-7-hydroxy-11a-methyl-2,3,3a,10,11,11a-hexahydro-1H-cyclopenta[a]phenanthren-1-one;   3-Hydroxyestra-1,3,5(10),6,8-pentaen-17-one;   3-hydroxyestra-1,3,5,7,9-pentaen-17-one;   6,8-didehydroestrone;   Formula=C18H18O2;   InChI=1S/C18H18O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h2-5,10,16,19H,6-9H2,1H3/t16-,18-/m0/s1;   InChIKey=PDRGHUMCVRDZLQ-WMZOPIPTSA-N;   SMILES=[H][C@@]12CCC(=O)[C@@]1(C)CCC1=C2C=CC2=CC(O)=CC=C12;   d-3-hydroxy-1,3,5(10),6,8-estrapentaen-17-one;   d-equilenin;   equilenine
 alt_id: CHEBI:42458
 xref: CAS:517-09-9;   DrugBank:DB03515;   KEGG:C14303;   LIPID_MAPS_instance:LMST02010007
 xref_mesh: MESH:D004855
 xref: PDBeChem:EQU;   PMID:10653633;   PMID:10694700;   PMID:11368557;   PMID:11850971;   PMID:12852789;   PMID:16191477;   PMID:18416538;   PMID:18919700;   PMID:20080683;   PMID:22126130;   PMID:22290292;   PMID:25611945;   PMID:26863931;   PMID:27375051;   PMID:28932441;   PMID:29660500;   PMID:3718973;   PMID:3821102;   PMID:3964666;   Patent:EP0944391;   Wikipedia:Equilenin

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equilenin term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Sts steroid sulfatase increases metabolic processing ISO STS protein results in increased metabolism of Equilenin CTD PMID:6874424 NCBI chr  X:42,225,131...42,233,403
Ensembl chr  X:42,225,372...42,233,402
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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20056
    role 20008
      chemical role 19544
        antioxidant 15014
          equilenin 1
Path 2
Term Annotations click to browse term
  CHEBI ontology 20056
    subatomic particle 20054
      composite particle 20054
        hadron 20054
          baryon 20054
            nucleon 20054
              atomic nucleus 20054
                atom 20054
                  main group element atom 19956
                    p-block element atom 19956
                      carbon group element atom 19882
                        carbon atom 19875
                          organic molecular entity 19875
                            organic group 18961
                              organic divalent group 18947
                                organodiyl group 18947
                                  carbonyl group 18900
                                    carbonyl compound 18900
                                      ketone 17091
                                        oxo steroid 10321
                                          17-oxo steroid 262
                                            equilenin 1
paths to the root