Celecoxib Impurity 31 CAS CATO-C4X-104331

Description

Compared with other compounds in its class, the molecular weight of 397.37 g/mol gives Celecoxib Impurity 31 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Celecoxib Impurity 31 (CAS CATO-C4X-104331), a pharmacopoeial impurity reference standard (molecular formula C17H14F3N3O3S, MW 397.37 g/mol) used for the identification and quantification of trace impurities in APIs.

Celecoxib Impurity 31 (C17H14F3N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), Celecoxib Impurity 31 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.

Physical & Chemical Properties

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