Description

2-(1H-Pyrazol-1-Yl)Ethanesulfonyl Chloride (Wxc09472) is a specialized sulfonyl chloride derivative, a key reactive intermediate in modern synthetic organic chemistry. Its primary value lies in its role as a versatile building block for introducing the sulfonamide functional group, which is critical for modulating the biological activity and physicochemical properties of target molecules. This high-purity intermediate is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in creating sulfonamide-based molecules for therapeutic applications.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides where the sulfonamide moiety is required for bioactivity.
• Chemical Biology & Proteomics: Serves as a reactive handle for bioconjugation and the development of chemical probes to study biological systems.
• Material Science Research: Employed in the synthesis of functional polymers and advanced materials with specific sulfonated properties.
• Custom Synthesis & Contract Manufacturing: A key starting material for custom synthesis projects requiring precise sulfonylation reactions.
• Academic & Industrial R&D: Fundamental reagent for methodological development in organic synthesis and medicinal chemistry laboratories.

Basic Information

Product Name	2-(1H-Pyrazol-1-Yl)Ethanesulfonyl Chloride (Wxc09472)
CAS No.	1196146-43-6
Molecular Formula	C5H7ClN2O2S
Molecular Weight	194.64 g/mol
Synonyms	2-(1H-Pyrazol-1-yl)ethanesulfonyl chloride; 2-(Pyrazol-1-yl)ethanesulfonyl chloride; 1-(2-Chlorosulfonylethyl)pyrazole; 2-(1-Pyrazolyl)ethanesulfonyl chloride; WXC-09472; WXC09472; 2-(1H-Pyrazol-1-yl)ethane-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 2-(1H-Pyrazol-1-Yl)Ethanesulfonyl Chloride is manufactured under strict quality management protocols. Our products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high chemical purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance and regulatory 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 tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent 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 solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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