n-(5-Methylisoxazol-3-yl)benzenesulfonamide CAS 13053-79-7

Description

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.

n-(5-Methylisoxazol-3-yl)benzenesulfonamide (CAS 13053-79-7), molecular formula C10H10N2O3S and molecular weight 238.26 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C10H10N2O3S, n-(5-Methylisoxazol-3-yl)benzenesulfonamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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