2-(4-Chlorophenyl)benzo[d]isothiazol-3(2H)-one CAS 2620-91-9

Description

Compared with other compounds in its class, the molecular weight of 261.73 g/mol gives 2-(4-Chlorophenyl)benzo[d]isothiazol-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(4-Chlorophenyl)benzo[d]isothiazol-3(2H)-one (CAS 2620-91-9) is a high-purity analytical reference standard with the molecular formula C13H8ClNOS and a molecular weight of 261.73 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 2-(4-Chlorophenyl)benzo[d]isothiazol-3(2H)-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 261.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

CATO manufactures 2-(4-Chlorophenyl)benzo[d]isothiazol-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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