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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 20059
    role 20009
      chemical role 19539
        antioxidant 14502
          equilenin 1
Path 2
Term Annotations click to browse term
  CHEBI ontology 20059
    subatomic particle 20056
      composite particle 20056
        hadron 20056
          baryon 20056
            nucleon 20056
              atomic nucleus 20056
                atom 20056
                  main group element atom 19956
                    p-block element atom 19956
                      carbon group element atom 19882
                        carbon atom 19873
                          organic molecular entity 19873
                            organic group 18943
                              organic divalent group 18928
                                organodiyl group 18928
                                  carbonyl group 18877
                                    carbonyl compound 18877
                                      ketone 17090
                                        oxo steroid 10296
                                          17-oxo steroid 261
                                            equilenin 1
paths to the root