Phytomenadione/Vitamin K1 Impurity 131 CAS CATO-C4X-2207131

Description

Compared with other compounds in its class, the molecular weight of 340.41 g/mol gives Phytomenadione/Vitamin K1 Impurity 131 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Phytomenadione/Vitamin K1 Impurity 131 (CAS CATO-C4X-2207131), a pharmacopoeial impurity reference standard (molecular formula C21H24O4, MW 340.41 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Phytomenadione/Vitamin K1 Impurity 131 (C21H24O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. 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 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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