5-Hydroxy-7-(4-methylphenyl)-2H-1,3-benzoxathiol-2-one CAS 327078-57-9

Description

5-Hydroxy-7-(4-methylphenyl)-2H-1,3-benzoxathiol-2-one (CAS 327078-57-9), molecular formula C14H10O3S and molecular weight 258.29 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C14H10O3S, 5-Hydroxy-7-(4-methylphenyl)-2H-1,3-benzoxathiol-2-one contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 258.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 5-Hydroxy-7-(4-methylphenyl)-2H-1,3-benzoxathiol-2-one 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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