1-(2-Fluoroethyl)-1h-pyrazole-4-sulfonamide CAS 1521702-65-7

Description

Compared with other compounds in its class, the molecular weight of 193.20 g/mol gives 1-(2-Fluoroethyl)-1h-pyrazole-4-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-(2-Fluoroethyl)-1h-pyrazole-4-sulfonamide (CAS 1521702-65-7) is a high-purity analytical reference standard with the molecular formula C5H8FN3O2S and a molecular weight of 193.20 g/mol.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 1-(2-Fluoroethyl)-1h-pyrazole-4-sulfonamide is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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