Sivelestat Impurity 26 CAS 4920-92-7

Description

Compared with other compounds in its class, the molecular weight of 178.23 g/mol gives Sivelestat Impurity 26 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Sivelestat Impurity 26 (CAS 4920-92-7), a pharmacopoeial impurity reference standard (molecular formula C11H14O2, MW 178.23 g/mol) used for the identification and quantification of trace impurities in APIs.

Sivelestat Impurity 26 (C11H14O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 Sivelestat Impurity 26 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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