1-(2-Nitrophenyl)-5-(thiophen-2-yl)-1H-pyrazole CAS 1269293-17-5

Description

Compared with other compounds in its class, the molecular weight of 271.29 g/mol gives 1-(2-Nitrophenyl)-5-(thiophen-2-yl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1-(2-Nitrophenyl)-5-(thiophen-2-yl)-1H-pyrazole (CAS 1269293-17-5), a certified reference material (molecular formula C13H9N3O2S, MW 271.29 g/mol) for analytical method development and quality control.

1-(2-Nitrophenyl)-5-(thiophen-2-yl)-1H-pyrazole (C13H9N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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