Description

4-(2-Chloro-Ethyl)-Benzenesulfonyl Chloride is a versatile and reactive organosulfur compound that serves as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both a sulfonyl chloride and a chloroethyl group, makes it an essential intermediate for constructing complex molecular architectures. This high-purity intermediate is primarily sought by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators with sulfonylurea or sulfonamide moieties.
• Polymer Chemistry: Used as a monomer or cross-linking agent in the production of specialty polymers and functional resins.
• Dye and Pigment Manufacturing: Intermediate for synthesizing sulfonated dyes and colorants with enhanced solubility and fastness properties.
• Material Science Research: Employed in the development of advanced materials such as liquid crystals, organic semiconductors, and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Useful for labeling and modifying biomolecules in proteomics and drug discovery research.

Basic Information

Product Name	4-(2-Chloro-Ethyl)-Benzenesulfonyl Chloride
CAS No.	4796-23-0
Molecular Formula	C8H8Cl2O2S
Molecular Weight	239.12 g/mol
Synonyms	1-(2-Chloroethyl)-4-(chlorosulfonyl)benzene; p-(2-Chloroethyl)benzenesulfonyl chloride; 4-(2-Chloroethyl)benzene-1-sulfonyl chloride; 2-Chloroethyl phenyl sulfone chloride; Benzenesulfonyl chloride, 4-(2-chloroethyl)-; (2-Chloroethyl)phenyl sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 4-(2-Chloro-Ethyl)-Benzenesulfonyl Chloride is manufactured under strict quality management protocols. We employ advanced analytical techniques including HPLC, GC, and NMR to ensure identity, purity, and consistency meet the stringent requirements of our global clientele. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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