Methylnaltrexone Bromide Impurity 14 CAS CATO-C4X-152114

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methylnaltrexone Bromide Impurity 14.

CATO supplies Methylnaltrexone Bromide Impurity 14 (CAS CATO-C4X-152114), a pharmacopoeial impurity reference standard (molecular formula C21H26NO5, MW 372.43 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Methylnaltrexone Bromide Impurity 14 (C21H26NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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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