Azelastine Impurity 7 CAS 787-84-8

Description

Compared with other compounds in its class, the molecular weight of 240.26 g/mol gives Azelastine Impurity 7 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Azelastine Impurity 7 (CAS 787-84-8), a pharmacopoeial impurity reference standard (molecular formula C14H12N2O2, MW 240.26 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C14H12N2O2, Azelastine Impurity 7 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Azelastine Impurity 7 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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