Selexipag Impurity 37 HCl CAS CATO-C4X-196137

Description

Compared with other compounds in its class, the molecular weight of 340.81 g/mol gives Selexipag Impurity 37 HCl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Selexipag Impurity 37 HCl (CAS CATO-C4X-196137), a pharmacopoeial impurity reference standard (molecular formula C18H16N4OHCl, MW 340.81 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Selexipag Impurity 37 HCl (C18H16N4OHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 340.81 g/mol, it falls into the moderately-high-molecular-weight range. 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.

CATO manufactures Selexipag Impurity 37 HCl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

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