Cefotaxime Impurity 83 CAS CATO-C4X-120183

Description

Compared with other compounds in its class, the molecular weight of 638.64 g/mol gives Cefotaxime Impurity 83 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Cefotaxime Impurity 83 (CAS CATO-C4X-120183), a pharmacopoeial impurity reference standard (molecular formula C22H22N8O9S3, MW 638.64 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Cefotaxime Impurity 83 (C22H22N8O9S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 638.64 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Cefotaxime Impurity 83 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

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