Description

2-(Methylsulfonyl)Benzenesulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative used as a key synthetic intermediate. Its value lies in its ability to introduce the 2-(methylsulfonyl)benzenesulfonyl moiety, a versatile functional group for constructing complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly in the development of active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), especially sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides where the sulfonyl group is a key pharmacophore.
• Dye and Pigment Manufacturing: Serves as a precursor for creating specialized sulfonated dyes and colorants with enhanced properties.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers, including polyelectrolytes and ion-exchange resins.
• Chemical Research & Development: A valuable reagent in organic synthesis for introducing sulfonyl groups and creating complex molecular architectures in R&D settings.
• Ligand and Catalyst Preparation: Used to functionalize ligands and catalysts, modifying their reactivity and selectivity for specific chemical transformations.

Basic Information

Product Name	2-(Methylsulfonyl)Benzenesulfonyl Chloride
CAS No.	89265-35-0
Molecular Formula	C7H7ClO4S2
Molecular Weight	254.71 g/mol
Synonyms	2-(Methanesulfonyl)benzenesulfonyl chloride; 1-(Chlorosulfonyl)-2-(methylsulfonyl)benzene; o-(Methylsulfonyl)benzenesulfonyl chloride; 2-Methylsulfonylbenzenesulfonyl chloride; Benzenesulfonyl chloride, 2-(methylsulfonyl)-; (2-Methanesulfonylphenyl)sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 2-(Methylsulfonyl)Benzenesulfonyl Chloride is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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 degradation. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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