Chlorpromazine EP Impurity A CAS 969-99-3

Description

Compared with other compounds in its class, the molecular weight of 334.86 g/mol gives Chlorpromazine EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Chlorpromazine EP Impurity A (CAS 969-99-3), a pharmacopoeial impurity reference standard (molecular formula C17H19ClN2OS, MW 334.86 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Chlorpromazine EP Impurity A (C17H19ClN2OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 334.86 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), Chlorpromazine EP Impurity A 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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