4-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride CAS 1060817-63-1

Description

The occurrence of 4-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 1060817-63-1) is a high-purity analytical reference standard with the molecular formula C7H4ClNO3S2 and a molecular weight of 249.69 g/mol.

4-(Isoxazol-5-yl)thiophene-2-sulfonyl chloride (C7H4ClNO3S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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