Prednisolone Impurity 44 CAS 7055-53-0

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.7055-53-0
Molecular FormulaC22H32O4
Molecular Weight360.49 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Prednisolone Impurity 44 CAS 7055-53-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 360.49 g/mol gives Prednisolone Impurity 44 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Prednisolone Impurity 44 (CAS 7055-53-0), a pharmacopoeial impurity reference standard (molecular formula C22H32O4, MW 360.49 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Prednisolone Impurity 44 (C22H32O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 360.49 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Prednisolone Impurity 44 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC22H32O4
Molecular Weight360.49 g/mol
AppearanceOff-white to pale 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959

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