Nifuratel Impurity 29 CAS 698-63-5

Description

The occurrence of Nifuratel Impurity 29 is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Nifuratel Impurity 29 (CAS 698-63-5), a pharmacopoeial impurity reference standard (molecular formula C5H3NO4, MW 141.08 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a carbohydrate-derived structure, an amide group, Nifuratel Impurity 29 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 141.08 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.

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