Description

α-(Chlorosulphonyl)-2,3-Dichlorotoluene is a specialized chlorinated aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functionality, offering reactive sites for nucleophilic substitution and electrophilic aromatic substitution, enabling the construction of complex molecular architectures. This high-purity intermediate is essential for research chemists and process development scientists in the pharmaceutical and agrochemical industries, where it is used to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key synthon for the development of sulfonamide-based active pharmaceutical ingredients (APIs) and other drug candidates.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides, leveraging its chlorinated aromatic core.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for synthesizing specialized azo dyes and high-performance pigments.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers and resins.
• Chemical Research & Development: A versatile reagent for exploring new reaction pathways and creating novel chemical entities in academic and industrial R&D labs.
• Liquid Crystal and Electronic Material Precursor: Used in the synthesis of organic compounds for electronic applications.

Basic Information

Product Name	α-(Chlorosulphonyl)-2,3-Dichlorotoluene
CAS No.	163295-69-0
Molecular Formula	C7H5Cl3O2S
Molecular Weight	259.54 g/mol
Synonyms	2,3-Dichloro-α-(chlorosulfonyl)toluene; 2,3-Dichlorobenzylsulfonyl Chloride; (2,3-Dichlorophenyl)methanesulfonyl Chloride; α-Chlorosulfonyl-2,3-dichlorotoluene; 2,3-Dichloro-α-toluenesulfonyl Chloride; 1-(Chlorosulfonyl)methyl-2,3-dichlorobenzene; Benzene, 1-(chlorosulfonyl)methyl-2,3-dichloro-
EINECS	Contact for details

Quality Control

Every batch of α-(Chlorosulphonyl)-2,3-Dichlorotoluene is manufactured under strict quality management protocols. We employ advanced analytical techniques including HPLC, GC, NMR, and IR spectroscopy to ensure identity, purity, and consistency. 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 degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm

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