Betamethasone Valerate EP Impurity B CAS 1879-77-2

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1879-77-2
Molecular FormulaC22H29FO4
Molecular Weight376.46 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Betamethasone Valerate EP Impurity B CAS 1879-77-2 chemical structure

Description

CATO supplies Betamethasone Valerate EP Impurity B (CAS 1879-77-2), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C22H29FO4. Molecular weight: 376.46 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC22H29FO4
Molecular Weight376.46 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF-containing

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