Description

2-(1-Methyl-1H-Pyrazol-3-Yl)-Benzenesulfonyl Chloride is a specialized heterocyclic sulfonyl chloride derivative that serves as a critical building block in advanced organic synthesis. Its value lies in its dual functional groups, enabling its use as a key intermediate for constructing complex molecules with high precision and efficiency. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in the development of kinase inhibitors and other small molecule therapeutics.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the pyrazole-sulfonyl moiety contributes to biological activity.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new chemical reactions and creating libraries of compounds for screening.
• Material Science: Potential use as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the custom production of complex target molecules.

Basic Information

Product Name	2-(1-Methyl-1H-Pyrazol-3-Yl)-Benzenesulfonyl Chloride
CAS No.	87488-81-1
Molecular Formula	C10H9ClN2O2S
Molecular Weight	256.71 g/mol
Synonyms	2-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride; 1-Methyl-3-(2-chlorosulfonylphenyl)pyrazole; 2-(1-Methyl-1H-pyrazol-3-yl)benzene-1-sulfonyl chloride; Benzenesulfonyl chloride, 2-(1-methyl-1H-pyrazol-3-yl)-; 87488-81-1; 2-(1-Methylpyrazol-3-yl)phenylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our 2-(1-Methyl-1H-Pyrazol-3-Yl)-Benzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and synthesis applications. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 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)	≥ 97.0%
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.