Cefixime Impurity 113 CAS 119608-72-9

Description

Compared with other compounds in its class, the molecular weight of 712.79 g/mol gives Cefixime Impurity 113 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Cefixime Impurity 113 (CAS 119608-72-9) is a certified pharmaceutical impurity reference standard with the molecular formula C42H37N2O5PS and a molecular weight of 712.79 g/mol.

The molecular framework of Cefixime Impurity 113 (C42H37N2O5PS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a phosphate ester group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), Cefixime Impurity 113 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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