Bempedoic Acid Impurity 21 CAS CATO-C4X-218921

Description

The occurrence of Bempedoic Acid Impurity 21 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Bempedoic Acid Impurity 21 (CAS CATO-C4X-218921), a pharmacopoeial impurity reference standard (molecular formula C21H38O5, MW 370.52 g/mol) used for the identification and quantification of trace impurities in APIs.

Bempedoic Acid Impurity 21 (C21H38O5) contains a carboxylic acid group, 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 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), Bempedoic Acid Impurity 21 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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