Pirfenidone Impurity 49 CAS CATO-C4X-222949

Description

Compared with other compounds in its class, the molecular weight of 109.13 g/mol gives Pirfenidone Impurity 49 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Pirfenidone Impurity 49 (CAS CATO-C4X-222949), a pharmacopoeial impurity reference standard (molecular formula C6H7NO, MW 109.13 g/mol) used for the identification and quantification of trace impurities in APIs.

Pirfenidone Impurity 49 (C6H7NO) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), Pirfenidone Impurity 49 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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