Estradiol Valerate EP Impurity B CAS 21881-45-8

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.21881-45-8
Molecular FormulaC23H32O3
Molecular Weight356.50 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Estradiol Valerate EP Impurity B CAS 21881-45-8 chemical structure

Description

Estradiol Valerate EP Impurity B (CAS 21881-45-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C23H32O3. Molecular weight: 356.50 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC23H32O3
Molecular Weight356.50 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

Related Estradiol Standards

Recommended Standards

Why CATO?