Cefoxitin Impurity 23 CAS CATO-C4X-157823

Description

Compared with other compounds in its class, the molecular weight of 457.48 g/mol gives Cefoxitin Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Cefoxitin Impurity 23 (CAS CATO-C4X-157823), a pharmacopoeial impurity reference standard (molecular formula C17H19N3O8S2, MW 457.48 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C17H19N3O8S2, Cefoxitin Impurity 23 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 457.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Cefoxitin Impurity 23 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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