2-(3-Chloro-4-fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid CAS 1009235-46-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(3-Chloro-4-fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid.

2-(3-Chloro-4-fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid (CAS 1009235-46-4) is a high-purity analytical reference standard with the molecular formula C11H13ClFNO4S2 and a molecular weight of 341.81 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 2-(3-Chloro-4-fluorobenzenesulfonamido)-4-(methylsulfanyl)butanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 341.81 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.

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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