Aprepitant Impurity 59 CAS 1341734-61-9

Description

As a certified reference material (CRM), Aprepitant Impurity 59 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 Aprepitant Impurity 59 (CAS 1341734-61-9), a pharmacopoeial impurity reference standard (molecular formula C4H7N3O2, MW 129.12 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Aprepitant Impurity 59 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 129.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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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