Methylprednisolone EP Impurity A CAS 91523-05-6

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.91523-05-6
Molecular FormulaC22H28O5
Molecular Weight372.45 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Methylprednisolone EP Impurity A CAS 91523-05-6 chemical structure

Description

CATO supplies Methylprednisolone EP Impurity A (CAS 91523-05-6), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C22H28O5. Molecular weight: 372.45 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC22H28O5
Molecular Weight372.45 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983

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