Perampanel impurity 43 CAS CATO-C4X-243043

Description

Compared with other compounds in its class, the molecular weight of 188.18 g/mol gives Perampanel impurity 43 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Perampanel impurity 43 (CAS CATO-C4X-243043) is a certified pharmaceutical impurity reference standard with the molecular formula C10H8N2O2 and a molecular weight of 188.18 g/mol.

Structurally, Perampanel impurity 43 (C10H8N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 188.18 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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