Cimetidine EP Impurity J CAS 38585-67-0

Description

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.

CATO supplies Cimetidine EP Impurity J (CAS 38585-67-0), a pharmacopoeial impurity reference standard (molecular formula C7H13N3S, MW 171.26 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C7H13N3S, Cimetidine EP Impurity J contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.26 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).

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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