Fezolinetant Impurity 16 CAS CATO-C4X-327016

Description

Compared with other compounds in its class, the molecular weight of 130.17 g/mol gives Fezolinetant Impurity 16 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Fezolinetant Impurity 16 (CAS CATO-C4X-327016), a pharmacopoeial impurity reference standard (molecular formula C3H6N4S, MW 130.17 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrile group, sulfur-containing functionality, Fezolinetant Impurity 16 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 130.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Fezolinetant Impurity 16 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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