Azilsartan Impurity 21 CAS 136285-67-1

Description

Compared with other compounds in its class, the molecular weight of 401.41 g/mol gives Azilsartan Impurity 21 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Azilsartan Impurity 21 (CAS 136285-67-1), a pharmacopoeial impurity reference standard (molecular formula C23H19N3O4, MW 401.41 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C23H19N3O4, Azilsartan Impurity 21 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 401.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures Azilsartan Impurity 21 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
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• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com