5-Bromo-2-(4-fluorophenyl)-6-(methylsulfonamido)benzofuran-3-carboxylic acid CAS 1333244-32-8

Description

Compared with other compounds in its class, the molecular weight of 428.23 g/mol gives 5-Bromo-2-(4-fluorophenyl)-6-(methylsulfonamido)benzofuran-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Bromo-2-(4-fluorophenyl)-6-(methylsulfonamido)benzofuran-3-carboxylic acid (CAS 1333244-32-8), molecular formula C16H11BrFNO5S and molecular weight 428.23 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5-Bromo-2-(4-fluorophenyl)-6-(methylsulfonamido)benzofuran-3-carboxylic acid (C16H11BrFNO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/bromine 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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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