3-(2,4-Dichloro-5-fluorophenyl)-1h-pyrazole-4-sulfonyl chloride CAS 1293000-27-7

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.

3-(2,4-Dichloro-5-fluorophenyl)-1h-pyrazole-4-sulfonyl chloride (CAS 1293000-27-7), molecular formula C9H4Cl3FN2O2S and molecular weight 329.56 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, fluorine/chlorine substitution, 3-(2,4-Dichloro-5-fluorophenyl)-1h-pyrazole-4-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 329.56 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).

CATO manufactures 3-(2,4-Dichloro-5-fluorophenyl)-1h-pyrazole-4-sulfonyl chloride 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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