Ozanimod impurity 33 CAS 1306760-73-5

Description

Compared with other compounds in its class, the molecular weight of 360.41 g/mol gives Ozanimod impurity 33 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ozanimod impurity 33 (CAS 1306760-73-5), a pharmacopoeial impurity reference standard (molecular formula C21H20N4O2, MW 360.41 g/mol) used for the identification and quantification of trace impurities in APIs.

Ozanimod impurity 33 (C21H20N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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