5,7-Difluoro-2h-chromene-3-sulfonyl chloride CAS 1235441-64-1

Description

Compared with other compounds in its class, the molecular weight of 266.65 g/mol gives 5,7-Difluoro-2h-chromene-3-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5,7-Difluoro-2h-chromene-3-sulfonyl chloride (CAS 1235441-64-1) is a high-purity analytical reference standard with the molecular formula C9H5ClF2O3S and a molecular weight of 266.65 g/mol.

5,7-Difluoro-2h-chromene-3-sulfonyl chloride (C9H5ClF2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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