3,5-Dimethyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide CAS 1286695-57-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1286695-57-5
Molecular FormulaC10H13N3O2S2
Molecular Weight271.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dimethyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide CAS 1286695-57-5 chemical structure

Description

The molecular framework of 3,5-Dimethyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide (C10H13N3O2S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

CATO supplies 3,5-Dimethyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide (CAS 1286695-57-5), a certified reference material (molecular formula C10H13N3O2S2, MW 271.36 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), 3,5-Dimethyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC10H13N3O2S2
Molecular Weight271.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms3
Sulfur Atoms2

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