Valsartan Impurity 31 CAS 154709-18-9

Description

As a certified reference material (CRM), Valsartan 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.

CATO supplies Valsartan Impurity 31 (CAS 154709-18-9), a pharmacopoeial impurity reference standard (molecular formula C33H26N4O, MW 494.59 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Valsartan Impurity 31 (C33H26N4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 23.0, corresponding to approximately 23 ring(s) or double-bond equivalent(s). With a molecular weight of 494.59 g/mol, it falls into the moderately-high-molecular-weight range. 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.

Physical & Chemical Properties

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