Description

1-Isopropyl-5-Methyl-1H-Pyrazole-3-Sulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. Its primary value lies in its role as a versatile sulfonylation reagent, enabling the efficient introduction of the sulfonamide functional group into complex molecular architectures. 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: Key building block for the synthesis of novel drug candidates, especially those containing sulfonamide pharmacophores.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and creating compound libraries.
• Dye and Pigment Industry: Intermediate in the synthesis of specialized colorants and photographic chemicals.

Basic Information

Product Name	1-Isopropyl-5-Methyl-1H-Pyrazole-3-Sulfonyl Chloride
CAS No.	1354704-57-6
Molecular Formula	C7H11ClN2O2S
Molecular Weight	222.69 g/mol
Synonyms	5-Methyl-1-(propan-2-yl)-1H-pyrazole-3-sulfonyl chloride; 1H-Pyrazole-3-sulfonyl chloride, 1-(1-methylethyl)-5-methyl-; 1-Isopropyl-5-methylpyrazole-3-sulfonyl chloride; 1-(Isopropyl)-5-methyl-1H-pyrazole-3-sulfonyl chloride; 3-Sulfonyl chloride-1-isopropyl-5-methylpyrazole
EINECS	Contact for details

Quality Control

Our production of 1-Isopropyl-5-Methyl-1H-Pyrazole-3-Sulfonyl Chloride adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques including HPLC, NMR, and GC to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory requirements.

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 nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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