Parecoxib Impurity 50 CAS 3026677-40-4

Description

Compared with other compounds in its class, the molecular weight of 357.42 g/mol gives Parecoxib Impurity 50 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Parecoxib Impurity 50 (CAS 3026677-40-4), a pharmacopoeial impurity reference standard (molecular formula C19H19NO4S, MW 357.42 g/mol) used for the identification and quantification of trace impurities in APIs.

Parecoxib Impurity 50 (C19H19NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Parecoxib Impurity 50 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