Aripiprazole Impurity 55 CAS CATO-C4X-100855

Description

Compared with other compounds in its class, the molecular weight of 272.41 g/mol gives Aripiprazole Impurity 55 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Aripiprazole Impurity 55 (CAS CATO-C4X-100855) is a certified pharmaceutical impurity reference standard with the molecular formula C16H20N2S and a molecular weight of 272.41 g/mol.

The molecular framework of Aripiprazole Impurity 55 (C16H20N2S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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