Promestriene Impurity 1 CAS CATO-C4X-22051

Description

Compared with other compounds in its class, the molecular weight of 300.44 g/mol gives Promestriene Impurity 1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Promestriene Impurity 1 (CAS CATO-C4X-22051) is a certified pharmaceutical impurity reference standard with the molecular formula C20H28O2 and a molecular weight of 300.44 g/mol.

The molecular framework of Promestriene Impurity 1 (C20H28O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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 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), Promestriene Impurity 1 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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