3-(4-nitrophenyl)-1,2-oxazole-5-sulfonyl chloride CAS 1909337-76-3

Description

3-(4-nitrophenyl)-1,2-oxazole-5-sulfonyl chloride (C9H5ClN2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO supplies 3-(4-nitrophenyl)-1,2-oxazole-5-sulfonyl chloride (CAS 1909337-76-3), a certified reference material (molecular formula C9H5ClN2O5S, MW 288.66 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), 3-(4-nitrophenyl)-1,2-oxazole-5-sulfonyl 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.

Physical & Chemical Properties

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