1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride CAS 1006495-69-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1006495-69-7
Molecular FormulaC8H13ClN2O2S
Molecular Weight236.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride CAS 1006495-69-7 chemical structure

Description

The occurrence of 1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride (CAS 1006495-69-7), molecular formula C8H13ClN2O2S and molecular weight 236.72 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H13ClN2O2S, 1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 1-Butyl-3-methyl-1h-pyrazole-4-sulfonyl chloride 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 FormulaC8H13ClN2O2S
Molecular Weight236.72 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1988
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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