3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonyl chloride CAS 941716-85-4

Description

Compared with other compounds in its class, the molecular weight of 256.71 g/mol gives 3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonyl chloride (CAS 941716-85-4) is a high-purity analytical reference standard with the molecular formula C10H9ClN2O2S and a molecular weight of 256.71 g/mol.

3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonyl chloride (C10H9ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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