2,4-dichloro-5-{[(4-methoxybenzyl)amino]sulfonyl}benzoic acid CAS 743451-38-9

Description

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.

2,4-dichloro-5-{[(4-methoxybenzyl)amino]sulfonyl}benzoic acid (CAS 743451-38-9) is a high-purity analytical reference standard with the molecular formula C15H13Cl2NO5S and a molecular weight of 390.24 g/mol.

Based on its molecular formula C15H13Cl2NO5S, 2,4-dichloro-5-{[(4-methoxybenzyl)amino]sulfonyl}benzoic acid contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 390.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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