Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: Equilin [USP]
RN: 474-86-2
UNII: 08O86EX0J4
InChIKey: WKRLQDKEXYKHJB-HFTRVMKXSA-N

Note

  • An estrogenic steroid produced by HORSES. It has a total of four double bonds in the A- and B-ring. High concentration of euilin is found in the URINE of pregnant mares.

Molecular Formula

  • C18-H20-O2

Molecular Weight

  • 268.354
 

Classification Codes

  • Estrogen
  • Mutation Data
  • Tumor Data
* denotes mobile formatted website

Links to Resources


Search for this InChIKey on the Web

Names and Synonyms

Name of Substance

  • Equilin
  • Equilin [USP]

MeSH Heading

  • Equilin

Synonyms

  • 1,3,5,7-Estratetraen-3-ol-17-one
  • 3-Hydroxyestra-1,3,5(10),7-tetraen-17-one
  • 4-08-00-01366 (Beilstein Handbook Reference)
  • 7-Dehydroestrone
  • BRN 2624302
  • CCRIS 9074
  • Dihydroequilenin
  • EINECS 207-488-6
  • Equilin
  • NSC 10971
  • UNII-08O86EX0J4

Systematic Names

  • 3-Hydroxyestra-1,3,5(10),7-tetraen-17-one (9CI)
  • 3-Hydroxyoestra-1,3,5(10),7-tetraen-17-one
  • Estra-1,3,5(10),7-tetraen-17-one, 3-hydroxy-

Superlist Name

  • Equilin

Registry Numbers

CAS Registry Number

  • 474-86-2

FDA UNII

  • 08O86EX0J4

System Generated Number

  • 0000474862

Structure Descriptors

InChI

1S/C18H20O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3-5,10,14,16,19H,2,6-9H2,1H3/t14-,16+,18+/m1/s1

InChIKey

WKRLQDKEXYKHJB-HFTRVMKXSA-N

Smiles

C1=2[C@@H]3[C@@](CC[C@@H]1c1c(cc(O)cc1)CC2)(C(=O)CC3)C

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 239 deg C   EXP
log P (octanol-water) 3.350 (none)   EST
Water Solubility 1.41 mg/L 25 EXP
Atmospheric OH Rate Constant 2.06E-10 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.