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MedKoo CAT#: 558253

CAS#: 128607-22-7

Description: Ospemifene is an oral medication indicated for the treatment of dyspareunia – pain during sexual intercourse – encountered by some women, more often in those who are post-menopausal. Ospemifene is a selective estrogen receptor modulator (SERM) acting similarly to an estrogen on the vaginal epithelium, building vaginal wall thickness which in turn reduces the pain associated with dyspareunia. Dyspareunia is most commonly caused by "vulval and vaginal atrophy." The medication was approved by the FDA in February 2013. (Source: http://en.wikipedia.org/wiki/Ospemifene)

Price and Availability

Size Price Shipping out time Quantity
10mg USD 250 2 Weeks
25mg USD 350 2 Weeks
50mg USD 450 2 Weeks
100mg USD 650 2 Weeks
200mg USD 950 2 Weeks
500mg USD 1050 2 Weeks
1g USD 1250 2 Weeks
2g USD 1850 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-08-07. Prices are subject to change without notice.

Ospemifene, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 558253
Name: Ospemifene
CAS#: 128607-22-7
Chemical Formula: C24H23ClO2
Exact Mass: 378.13866
Molecular Weight: 378.89
Elemental Analysis: C, 76.08; H, 6.12; Cl, 9.36; O, 8.45

Synonym: Osphena

IUPAC/Chemical Name: 2-(p-((Z)-4-Chloro-1,2-diphenyl-1-butenyl)phenoxy)ethanol


InChi Code: InChI=1S/C24H23ClO2/c25-16-15-23(19-7-3-1-4-8-19)24(20-9-5-2-6-10-20)21-11-13-22(14-12-21)27-18-17-26/h1-14,26H,15-18H2/b24-23-


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO.

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


 1: Soe LH, Wurz GT, Kao CJ, Degregorio MW. Ospemifene for the treatment of dyspareunia associated with vulvar and vaginal atrophy: potential benefits in bone and breast. Int J Womens Health. 2013 Sep 25;5:605-11. doi: 10.2147/IJWH.S39146. Review. PubMed PMID: 24109197; PubMed Central PMCID: PMC3792833.

2: Elkinson S, Yang LP. Ospemifene: first global approval. Drugs. 2013 May;73(6):605-12. doi: 10.1007/s40265-013-0046-y. Review. PubMed PMID: 23605694.

3: McCall JL, DeGregorio MW. Pharmacologic evaluation of ospemifene. Expert Opin Drug Metab Toxicol. 2010 Jun;6(6):773-9. doi: 10.1517/17425255.2010.487483. Review. PubMed PMID: 20429673.

4: Gennari L, Merlotti D, Valleggi F, Nuti R. Ospemifene use in postmenopausal women. Expert Opin Investig Drugs. 2009 Jun;18(6):839-49. doi: 10.1517/13543780902953715. Review. PubMed PMID: 19466874.

5: Gennari L. Ospemifene Hormos. Curr Opin Investig Drugs. 2004 Apr;5(4):448-55. Review. PubMed PMID: 15134288.