Quinestrol

Quinestrol
Clinical data
Trade namesEstrovis, others
Other namesQuinoestrol; Quinestrenol; Quinoestrenol; Ethinylestradiol 3-cyclopentyl ether; EECPE; EE2CPE; W-3566; 3-(Cyclopentyloxy)-17α-ethynylestra-1,3,5(10)-trien-17β-ol
AHFS/Drugs.comMicromedex Detailed Consumer Information
Routes of
administration		By mouth
Drug classEstrogen; Estrogen ether
ATC code
  • None
Pharmacokinetic data
Elimination half-life>120 hours (>5 days)[1]
Identifiers
  • (8R,9S,13S,14S,17R)-3-cyclopentyloxy-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.005.277 Edit this at Wikidata
Chemical and physical data
FormulaC25H32O2
Molar mass364.529 g·mol−1
3D model (JSmol)
  • O(c1ccc2c(c1)CC[C@H]3[C@@H]4CC[C@](C#C)(O)[C@@]4(C)CC[C@H]23)C5CCCC5
  • InChI=1S/C25H32O2/c1-3-25(26)15-13-23-22-10-8-17-16-19(27-18-6-4-5-7-18)9-11-20(17)21(22)12-14-24(23,25)2/h1,9,11,16,18,21-23,26H,4-8,10,12-15H2,2H3/t21-,22-,23+,24+,25+/m1/s1 checkY
  • Key:PWZUUYSISTUNDW-VAFBSOEGSA-N checkY
  (verify)

Quinestrol, also known as ethinylestradiol cyclopentyl ether (EECPE), sold under the brand name Estrovis among others, is an estrogen medication which has been used in menopausal hormone therapy, hormonal birth control, and to treat breast cancer and prostate cancer.[2][3] It is taken once per week to once per month by mouth.[4][5][6][7]

  1. ^ Cite error: The named reference Sitruk-Ware_2012 was invoked but never defined (see the help page).
  2. ^ Zink C (1 January 1988). "Quinestrol". Dictionary of Obstetrics and Gynecology. Walter de Gruyter. pp. 204–. ISBN 978-3-11-085727-6.
  3. ^ Cite error: The named reference Peterson_1999 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Quirk_2012 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference HorskyPresl2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference HawkinsElder2013 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Bennett_1974 was invoked but never defined (see the help page).