Description

4-Methylsulfonylbenzenesulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. Its value lies in its dual functional groups, which enable the efficient introduction of the 4-methylsulfonylphenylsulfonyl moiety, a key structural motif in several high-performance materials. This compound is essential for research and production in the pharmaceutical and agrochemical industries, particularly for developing novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of modern herbicides and fungicides, where the sulfonyl group contributes to biological activity.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialty polymers with specific thermal or chemical resistance properties.
• Dye and Pigment Manufacturing: Employed in the synthesis of sulfonated dyes and advanced organic pigments.
• Material Science Research: Utilized in the development of novel organic electronic materials and liquid crystals.
• Chemical Biology Probes: Acts as a reactive handle for labeling proteins or other biomolecules in research applications.

Basic Information

Product Name	4-Methylsulfonylbenzenesulfonyl Chloride
CAS No.	82964-91-8
Molecular Formula	C7H7ClO4S2
Molecular Weight	254.71 g/mol
Synonyms	4-(Methylsulfonyl)benzenesulfonyl chloride; p-(Methylsulfonyl)benzenesulfonyl chloride; 4-Methanesulfonylbenzenesulfonyl chloride; 1-Chlorosulfonyl-4-methanesulfonylbenzene; Benzenesulfonyl chloride, 4-(methylsulfonyl)-; Tosylsulfonyl chloride analog; 4-Methylsulfonylphenylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Methylsulfonylbenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality for your critical R&D and production processes.

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 and moisture-sensitive nature, the container must be kept tightly sealed under anhydrous conditions. 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
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.