Description

4-Methylbenzene-1,3-Disulfonyl Chloride is a versatile and highly reactive aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to introduce the sulfonyl functional group, enabling the creation of sulfonamides, sulfonate esters, and other complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require a reliable, high-purity intermediate for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including diuretics, anticonvulsants, and antibacterial agents.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that incorporate sulfonylurea or sulfonamide moieties.
• Dye and Pigment Manufacturing: Acts as a reactant for creating sulfonated dyes and optical brighteners with enhanced solubility and color fastness.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for subsequent cross-linking or to impart specific ionic properties.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecules in medicinal chemistry and material science projects.
• Ligand and Catalyst Preparation: Used to synthesize specialized ligands for metal catalysis or to create functionalized surfaces and supports.

Basic Information

Product Name	4-Methylbenzene-1,3-Disulfonyl Chloride
CAS No.	2767-77-3
Molecular Formula	C7H6Cl2O4S2
Molecular Weight	289.15 g/mol
Synonyms	3,4-Dimethylbenzenesulfonyl Chloride; 4-Methyl-1,3-benzenedisulfonyl Chloride; Toluene-3,4-disulfonyl Chloride; 3,4-Dimethylbenzene-1,3-disulfonyl Chloride; 3,4-Dimethylbenzenesulphonyl Chloride; 4-Methyl-m-benzenedisulfonyl Chloride; 3,4-Dimethyl-1,3-benzenedisulfonyl Chloride
EINECS	220-438-4

Quality Control

Our 4-Methylbenzene-1,3-Disulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency for our global B2B clients.

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 hydrolysis and degradation. 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%
Melting Point	118°C - 122°C
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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