Description

1,3-Benzenedisulfonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its value lies in its dual sulfonyl chloride functional groups, which enable efficient and selective derivatization to create complex sulfonamides and sulfonate esters. This compound is a critical building block for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based active pharmaceutical ingredients (APIs), including diuretics and antibacterial agents.
• Agrochemical Synthesis: Used to manufacture herbicides, fungicides, and plant growth regulators that incorporate sulfonylurea or sulfonamide moieties.
• Polymer Modification: Serves as a cross-linking agent or functional monomer to introduce sulfone groups into specialty polymers, enhancing thermal and chemical resistance.
• Dye and Pigment Production: Intermediate in the creation of sulfonated dyes and optical brighteners.
• Ligand and Catalyst Design: Building block for synthesizing chelating agents and organocatalysts used in asymmetric synthesis.
• Material Science Research: Employed in developing novel metal-organic frameworks (MOFs) and porous organic polymers for gas storage and separation.

Basic Information

Product Name	1,3-Benzenedisulfonyl Chloride
CAS No.	585-47-7
Molecular Formula	C6H4Cl2O4S2
Molecular Weight	275.13 g/mol
Synonyms	m-Benzenedisulfonyl Dichloride; 1,3-Benzenedisulfonic Acid Dichloride; Isophthalic Sulfonyl Chloride; m-Phenylenedisulfonyl Chloride; Benzene-1,3-disulfonyl Chloride; Isophthaloyl Disulfonyl Chloride; 3-Sulfobenzene-1-sulfonyl Chloride; m-Disulfonylbenzene Dichloride
EINECS	209-548-8

Quality Control

Our 1,3-Benzenedisulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at 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 moisture, bases, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Assay (Titration)	97.0 - 103.0%
Melting Point	118 - 122 °C
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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