Urapidil Impurity 23 CAS CATO-C4X-192423

Description

Compared with other compounds in its class, the molecular weight of 384.52 g/mol gives Urapidil Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Urapidil Impurity 23 (CAS CATO-C4X-192423), a pharmacopoeial impurity reference standard (molecular formula C22H32N4O2, MW 384.52 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Urapidil Impurity 23 (C22H32N4O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), Urapidil Impurity 23 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

Why CATO?

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