Description

1-Isopropyl-3-Methyl-1H-Pyrazole-4-Sulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative, primarily used as a critical building block in advanced organic synthesis. Its value lies in its role as a versatile sulfonylation reagent, enabling the efficient 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 developing active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides that incorporate sulfonyl functional groups.
• Material Science Research: Serves as a monomer or cross-linking agent in the creation of specialized polymers and functional materials.
• Chemical Biology & Proteomics: Employed as a reactive handle for labeling or modifying biomolecules in probe development.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis projects requiring specific sulfonylated structures.
• Academic & R&D Laboratories: Used in methodological research and the discovery of new synthetic routes involving sulfonylation reactions.

Basic Information

Product Name	1-Isopropyl-3-Methyl-1H-Pyrazole-4-Sulfonyl Chloride
CAS No.	1006453-71-9
Molecular Formula	C7H11ClN2O2S
Molecular Weight	222.69 g/mol
Synonyms	1-Isopropyl-3-methyl-4-sulfonyl chloride pyrazole; 1-Isopropyl-3-methyl-1H-pyrazole-4-sulfonyl chloride; 4-(Chlorosulfonyl)-1-isopropyl-3-methyl-1H-pyrazole; 1H-Pyrazole-4-sulfonyl chloride, 1-isopropyl-3-methyl-; 1-Isopropyl-3-methylpyrazole-4-sulfonyl chloride; 3-Methyl-1-isopropyl-1H-pyrazole-4-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 1-Isopropyl-3-Methyl-1H-Pyrazole-4-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) documenting all critical quality attributes are available for every shipment upon request, supporting your regulatory and R&D documentation needs.

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 sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. 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
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.