Desloratadine Impurity 16 CAS 1346604-23-6

Description

Compared with other compounds in its class, the molecular weight of 326.82 g/mol gives Desloratadine Impurity 16 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Desloratadine Impurity 16 (CAS 1346604-23-6) is a certified pharmaceutical impurity reference standard with the molecular formula C19H19ClN2O and a molecular weight of 326.82 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Desloratadine Impurity 16 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Desloratadine Impurity 16 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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