Indometacin Impurity 19 CAS CATO-C4X-147019

Description

Compared with other compounds in its class, the molecular weight of 415.82 g/mol gives Indometacin Impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Indometacin Impurity 19 (CAS CATO-C4X-147019), a pharmacopoeial impurity reference standard (molecular formula C21H18ClNO6, MW 415.82 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Indometacin Impurity 19 (C21H18ClNO6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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.

CATO manufactures Indometacin Impurity 19 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Why CATO?

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