5-[[(4-Chlorophenyl)amino]sulfonyl]-2-methylbenzoic acid CAS 104941-53-9

Description

5-[[(4-Chlorophenyl)amino]sulfonyl]-2-methylbenzoic acid (CAS 104941-53-9), molecular formula C14H12ClNO4S and molecular weight 325.77 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 5-[[(4-Chlorophenyl)amino]sulfonyl]-2-methylbenzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 325.77 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 5-[[(4-Chlorophenyl)amino]sulfonyl]-2-methylbenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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