3-Bromo-5-cyano-4-fluorobenzenesulfonyl chloride CAS 1804387-34-5

Description

As a certified reference material (CRM), 3-Bromo-5-cyano-4-fluorobenzenesulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

3-Bromo-5-cyano-4-fluorobenzenesulfonyl chloride (CAS 1804387-34-5), molecular formula C7H2BrClFNO2S and molecular weight 298.52 g/mol, is a CATO reference standard with documented purity and traceability.

3-Bromo-5-cyano-4-fluorobenzenesulfonyl chloride (C7H2BrClFNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system. 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.

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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