(E)-2-(4-bromobut-2-en-1-yl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide CAS 124372-68-5

Description

Compared with other compounds in its class, the molecular weight of 316.17 g/mol gives (E)-2-(4-bromobut-2-en-1-yl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(E)-2-(4-bromobut-2-en-1-yl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 124372-68-5), molecular formula C11H10BrNO3S and molecular weight 316.17 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (E)-2-(4-bromobut-2-en-1-yl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide (C11H10BrNO3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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