Ziprasidone EP Impurity A CAS 87691-87-0

Description

Compared with other compounds in its class, the molecular weight of 219.31 g/mol gives Ziprasidone EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ziprasidone EP Impurity A (CAS 87691-87-0) is a certified pharmaceutical impurity reference standard with the molecular formula C11H13N3S and a molecular weight of 219.31 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, Ziprasidone EP Impurity A is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 219.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), Ziprasidone EP Impurity A 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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