Esomeprazole Impurity 103 CAS CATO-C4X-1112103

Description

Compared with other compounds in its class, the molecular weight of 337.33 g/mol gives Esomeprazole Impurity 103 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Esomeprazole Impurity 103 (CAS CATO-C4X-1112103), a pharmacopoeial impurity reference standard (molecular formula C15H12N3O3SNa, MW 337.33 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Esomeprazole Impurity 103 (C15H12N3O3SNa) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 337.33 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).

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.

As a certified reference material (CRM), Esomeprazole Impurity 103 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