Drotaverin Impurity 72 CAS CATO-C4X-243572

Description

The occurrence of Drotaverin Impurity 72 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Drotaverin Impurity 72 (CAS CATO-C4X-243572), a pharmacopoeial impurity reference standard (molecular formula C22H26O7, MW 402.44 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Drotaverin Impurity 72 (C22H26O7) is characterized by a flavonoid core, 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 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), Drotaverin Impurity 72 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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