Propylthiouracil Impurity 3 CAS 21633-79-4

Description

Compared with other compounds in its class, the molecular weight of 230.26 g/mol gives Propylthiouracil Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Propylthiouracil Impurity 3 (CAS 21633-79-4), molecular formula C11H18O5 and molecular weight 230.26 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Propylthiouracil Impurity 3 (C11H18O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures Propylthiouracil Impurity 3 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

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