Description

4-Chlorobenzene-1,3-Disulphonyl Dichloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its core value lies in its dual sulfonyl chloride functional groups, which enable precise and efficient derivatization to create complex sulfonamides and sulfonate esters. This compound is critically needed by research chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drug candidates, including diuretics, carbonic anhydrase inhibitors, and antiviral agents.
• Agrochemical Synthesis: Used in the production of modern herbicides, fungicides, and plant growth regulators that require sulfonyl moiety incorporation.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialty polymers with sulfone groups, enhancing thermal stability and chemical resistance.
• Dye and Pigment Manufacturing: Intermediate for synthesizing sulfonated dyes and organic pigments, improving solubility and color fastness.
• Ligand and Catalyst Development: Precursor for designing novel chiral sulfonamide ligands used in asymmetric catalysis.
• Material Science Research: Employed in the development of advanced materials like metal-organic frameworks (MOFs) and functional surfaces.

Basic Information

Product Name	4-Chlorobenzene-1,3-Disulphonyl Dichloride
CAS No.	2891-17-0
Molecular Formula	C6H3Cl3O4S2
Molecular Weight	309.57 g/mol
Synonyms	1,3-Benzenedisulfonyl chloride, 4-chloro-; 4-Chloro-1,3-benzenedisulfonyl chloride; 4-Chlorobenzene-1,3-disulfonyl dichloride; 4-Chloro-m-benzenedisulfonyl dichloride; 3-Chlorobenzene-1,5-disulfonyl dichloride; 4-Chlororesorcinoldisulfonyl Dichloride; 4-Chloro-1,3-phenylenedisulfonyl dichloride; 4-Chloro-1,3-benzenedisulfonic acid dichloride
EINECS	220-770-6

Quality Control

Our 4-Chlorobenzene-1,3-Disulphonyl Dichloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistency suitable for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 hydrolysis. Keep away from heat, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

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

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