3,5-Bis(4-fluorobenzenesulfonamido)benzoic acid CAS 329908-32-9

Description

Compared with other compounds in its class, the molecular weight of 468.45 g/mol gives 3,5-Bis(4-fluorobenzenesulfonamido)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,5-Bis(4-fluorobenzenesulfonamido)benzoic acid (CAS 329908-32-9), molecular formula C19H14F2N2O6S2 and molecular weight 468.45 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3,5-Bis(4-fluorobenzenesulfonamido)benzoic acid (C19H14F2N2O6S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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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