Description

(Methylsulfonyl)Methanesulfonyl Chloride is a highly reactive sulfonyl chloride derivative, serving as a critical bifunctional building block in advanced organic synthesis. Its dual sulfonyl chloride groups enable efficient, sequential functionalization, making it invaluable for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active pharmaceutical ingredients (APIs) and high-performance materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, enzyme inhibitors, and novel therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators with specific sulfonyl functionalities.
• Polymer & Material Science: Acts as a cross-linking agent or monomer for creating specialty polymers, coatings, and high-performance resins.
• Chemical Research & Development: A versatile reagent for introducing the methanesulfonyl (mesyl) group and constructing complex heterocycles in medicinal chemistry.
• Dye & Pigment Manufacturing: Intermediate in the synthesis of specialized sulfonated dyes and colorants.
• Ligand & Catalyst Preparation: Used to functionalize ligands for metal catalysis and create novel organocatalysts.

Basic Information

Product Name	(Methylsulfonyl)Methanesulfonyl Chloride
CAS No.	22317-89-1
Molecular Formula	C2H4Cl2O4S2
Molecular Weight	227.13 g/mol
Synonyms	Methanesulfonyl chloride, (methylsulfonyl)-; Bis(methanesulfonyl)methane chloride; 1,1'-[Methylenebis(sulfonyl)]bis[methanesulfonyl chloride] (incorrect but common in early literature); Methanedisulfonyl dichloride; NSC 163082; Disulfonylmethane dichloride; (Methanesulfonyl)methanesulfonyl Chloride
EINECS	Contact for details

Quality Control

Our (Methylsulfonyl)Methanesulfonyl Chloride is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with complete batch-specific data are provided to guarantee traceability and consistency.

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 and reactive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

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

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