Description

1,3-Dimethyl-1H-Pyrazole-5-Sulfonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative, primarily used as a key synthetic intermediate. Its core value lies in its ability to act as an efficient sulfonylation reagent, enabling the introduction of the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the development of active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing novel drug candidates, especially in the development of kinase inhibitors and other small molecule therapeutics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, contributing to crop protection solutions.
• Functional Material Precursor: Serves as a starting material for creating specialized polymers, dyes, and other performance chemicals.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new organic reactions and synthesizing complex molecular architectures.
• Peptide Modification: Can be employed to modify peptides and proteins, introducing sulfonamide linkages for biochemical studies.

Basic Information

Product Name	1,3-Dimethyl-1H-Pyrazole-5-Sulfonyl Chloride
CAS No.	1245820-90-9
Molecular Formula	C5H7ClN2O2S
Molecular Weight	194.64 g/mol
Synonyms	1,3-Dimethyl-1H-pyrazole-5-sulfonyl chloride; 1,3-Dimethylpyrazole-5-sulfonyl chloride; 5-(Chlorosulfonyl)-1,3-dimethyl-1H-pyrazole; 1,3-Dimethyl-5-sulfonylchloride pyrazole; DMPS-Cl; Pyrazole-5-sulfonyl chloride, 1,3-dimethyl-
EINECS	Contact for details

Quality Control

Our 1,3-Dimethyl-1H-Pyrazole-5-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your research and production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.