Piroxicam Impurity 20 CAS CATO-C4X-173320

Description

Compared with other compounds in its class, the molecular weight of 297.33 g/mol gives Piroxicam Impurity 20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Piroxicam Impurity 20 (CAS CATO-C4X-173320), a pharmacopoeial impurity reference standard (molecular formula C13H15NO5S, MW 297.33 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C13H15NO5S, Piroxicam Impurity 20 contains a nitrogen-containing heterocyclic scaffold, 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 297.33 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), Piroxicam Impurity 20 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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