4-Acetyl-1-methyl-1H-pyrazole-5-sulfonamide CAS 111493-61-9

Description

Compared with other compounds in its class, the molecular weight of 203.22 g/mol gives 4-Acetyl-1-methyl-1H-pyrazole-5-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-Acetyl-1-methyl-1H-pyrazole-5-sulfonamide (CAS 111493-61-9), a certified reference material (molecular formula C6H9N3O3S, MW 203.22 g/mol) for analytical method development and quality control.

The molecular framework of 4-Acetyl-1-methyl-1H-pyrazole-5-sulfonamide (C6H9N3O3S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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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