Propylthiouracil EP Impurity A CAS 62-56-6

Description

Compared with other compounds in its class, the molecular weight of 76.12 g/mol gives Propylthiouracil EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Propylthiouracil EP Impurity A (CAS 62-56-6), a pharmacopoeial impurity reference standard (molecular formula CH4N2S, MW 76.12 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to sulfur-containing functionality, Propylthiouracil EP Impurity A is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 76.12 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.

CATO manufactures Propylthiouracil EP Impurity A under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Why CATO?

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