Posaconazole Impurity 77 CAS 74853-08-0

Description

Compared with other compounds in its class, the molecular weight of 269.34 g/mol gives Posaconazole Impurity 77 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Posaconazole Impurity 77 (CAS 74853-08-0) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19N3O and a molecular weight of 269.34 g/mol.

Posaconazole Impurity 77 (C16H19N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), Posaconazole Impurity 77 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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