4-chloro-2-oxo-2H-chromene-3-sulfonyl chloride CAS 18633-79-9

Description

CATO manufactures 4-chloro-2-oxo-2H-chromene-3-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.

4-chloro-2-oxo-2H-chromene-3-sulfonyl chloride (CAS 18633-79-9) is a high-purity analytical reference standard with the molecular formula C9H4Cl2O4S and a molecular weight of 279.10 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 4-chloro-2-oxo-2H-chromene-3-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 279.10 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.

Physical & Chemical Properties

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