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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:45,420,418...45,428,748
Ensembl chr  X:45,420,596...45,428,750
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Term Annotations click to browse term
  CHEBI ontology 19840
    role 19790
      chemical role 19308
        antioxidant 14233
          equilenin 1
Path 2
Term Annotations click to browse term
  CHEBI ontology 19840
    subatomic particle 19838
      composite particle 19838
        hadron 19838
          baryon 19838
            nucleon 19838
              atomic nucleus 19838
                atom 19838
                  main group element atom 19730
                    p-block element atom 19730
                      carbon group element atom 19635
                        carbon atom 19624
                          organic molecular entity 19624
                            organic group 18537
                              organic divalent group 18528
                                organodiyl group 18528
                                  carbonyl group 18436
                                    carbonyl compound 18436
                                      ketone 16187
                                        oxo steroid 9287
                                          17-oxo steroid 258
                                            equilenin 1
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