2-Chloro-3-hydroxy-1-methylpyridin-1-ium 4-methylbenzenesulfonate CAS 73059-19-5

Description

As a certified reference material (CRM), 2-Chloro-3-hydroxy-1-methylpyridin-1-ium 4-methylbenzenesulfonate 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.

2-Chloro-3-hydroxy-1-methylpyridin-1-ium 4-methylbenzenesulfonate (CAS 73059-19-5), molecular formula C7H7O3SC6H7ClNO and molecular weight 315.77 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Chloro-3-hydroxy-1-methylpyridin-1-ium 4-methylbenzenesulfonate (C7H7O3SC6H7ClNO) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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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