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Merck
CN

SML0996

Ospemifene

≥98% (HPLC)

Synonym(s):

(deaminohydroxy)toremifene, 2-[4-[(1Z)-4-Chloro-1,2-diphenyl-1-buten-1-yl]phenoxy]ethanol, FC-1271a

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About This Item

Empirical Formula (Hill Notation):
C24H23ClO2
CAS Number:
128607-22-7
Molecular Weight:
378.89
UNSPSC Code:
51111800
NACRES:
NA.77

Key Documents

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SMILES string

ClCC\C(=C(\c3ccc(cc3)OCCO)/c2ccccc2)\c1ccccc1

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-

InChI key

LUMKNAVTFCDUIE-VHXPQNKSSA-N

assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 20 mg/mL, clear

storage temp.

2-8°C

Quality Level

100

Biochem/physiol Actions

Ospemifene is a selective estrogen receptor modulator (SERM), a metabolite of toremifene, with a unique estrogen agonist/antagonist tissue profile. Ospemifene was recently approved in the US for the treatment of dyspareunia associated with vulvar and vaginal atrophy in postmenopausal women, and is being investigated for the treatment and prevention of osteoporosis and breast cancer. Ospemifene binds ERα and ERβ with approximately equal affinities with IC50 values for estrogen receptor (ER) α and β of 0.8 μM and 1.7 μM, respectively. Ospemifene has estrogen-like effects on the vaginal epithelium and bone, antiproliferative effects in breast, and a neutral endometrial profile.
Ospemifene is a selective estrogen receptor modulator (SERM), a metabolite of toremifene.

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
0000121592
0000121593
0000119838
0000080116
0000080115

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