Exemestane EP Impurity E CAS 19457-55-7

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.19457-55-7
Molecular FormulaC20H26O2
Molecular Weight298.42 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Exemestane EP Impurity E CAS 19457-55-7 chemical structure

Description

High-purity Exemestane EP Impurity E (CAS 19457-55-7) pharmacopoeial impurity standards reference standard. Molecular formula: C20H26O2. Molecular weight: 298.42 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.

Physical & Chemical Properties

Molecular FormulaC20H26O2
Molecular Weight298.42 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
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.)1962

Related Exemestane Standards

Recommended Standards

Why CATO?