Felbinac impurity 4 CAS 1286423-88-8

Description

Compared with other compounds in its class, the molecular weight of 254.32 g/mol gives Felbinac impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Felbinac impurity 4 (CAS 1286423-88-8), a pharmacopoeial impurity reference standard (molecular formula C17H18O2, MW 254.32 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Felbinac impurity 4 (C17H18O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 254.32 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), Felbinac impurity 4 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