Description

3-Chloro-4-Cyano-Benzenesulfonyl Chloride is a high-purity, multi-functional chemical intermediate essential for advanced synthesis. This compound matters for its dual reactive sites, the sulfonyl chloride and nitrile groups, which enable its use in constructing complex molecules with specific functionalities. It is primarily needed by research and development chemists and process engineers in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, leveraging the sulfonyl chloride moiety for creating potent bioactive molecules.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for specialty dyes and pigments, where the cyano and sulfonyl groups contribute to color fastness and molecular stability.
• Polymer Modification: Employed to introduce sulfonyl chloride functional groups into polymer chains for creating ion-exchange resins or materials with specific surface properties.
• Chemical Research & Development: A versatile reagent in organic synthesis labs for constructing benzenesulfonyl derivatives and exploring new reaction pathways.
• Liquid Crystal and OLED Material Precursor: Used in the development of advanced electronic display materials due to its rigid aromatic structure and functional handles for further derivatization.

Basic Information

Item	Details
Product Name	3-Chloro-4-Cyano-Benzenesulfonyl Chloride
CAS No.	213130-43-9
Molecular Formula	C7H3Cl2NO2S
Molecular Weight	236.07 g/mol
Synonyms	3-Chloro-4-cyanobenzenesulfonyl chloride; 4-Cyano-3-chlorobenzenesulfonyl chloride; 2-Chloro-4-(chlorosulfonyl)benzonitrile; Benzonitrile, 2-chloro-4-(chlorosulfonyl)-; 3-Chloro-4-cyanobenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our production of 3-Chloro-4-Cyano-Benzenesulfonyl Chloride adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment, guaranteeing traceability and compliance with relevant industry standards.

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 sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Keep away from strong bases, oxidizing agents, and sources of heat.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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