Cefuroxime Impurity 90 CAS CATO-C4X-124590

Description

Compared with other compounds in its class, the molecular weight of 533.63 g/mol gives Cefuroxime Impurity 90 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Cefuroxime Impurity 90 (CAS CATO-C4X-124590), a pharmacopoeial impurity reference standard (molecular formula C19H15N7O4S4, MW 533.63 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Cefuroxime Impurity 90 (C19H15N7O4S4) is characterized by a flavonoid core, an amide group, a sulfone 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

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