Budesonide impurity 42 CAS CATO-C4X-138942

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-138942
Molecular FormulaC24H32O7
Molecular Weight432.51 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Budesonide impurity 42 CAS CATO-C4X-138942 chemical structure

Description

As a certified reference material (CRM), Budesonide impurity 42 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

CATO supplies Budesonide impurity 42 (CAS CATO-C4X-138942), a pharmacopoeial impurity reference standard (molecular formula C24H32O7, MW 432.51 g/mol) used for the identification and quantification of trace impurities in APIs.

Budesonide impurity 42 (C24H32O7) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

Physical & Chemical Properties

Molecular FormulaC24H32O7
Molecular Weight432.51 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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

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