Description

3-(Methylsulfonyl)Benzenesulfonyl Chloride is a high-purity, specialized sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. This compound is valued for its dual functional groups, which enable the selective introduction of the sulfonyl moiety into target molecules. It is primarily sought after by research and development chemists and process engineers in the pharmaceutical and agrochemical industries for the development of new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and pesticides that require a specific sulfonyl group for bioactivity.
• Material Science: Building block for creating specialized polymers and functional materials with specific surface properties.
• Chemical Research: A versatile electrophile in academic and industrial R&D for exploring new reaction pathways and creating compound libraries.
• Dye and Pigment Industry: Intermediate in the synthesis of specialized sulfonated dyes and colorants.

Basic Information

Item	Detail
Product Name	3-(Methylsulfonyl)Benzenesulfonyl Chloride
CAS No.	502625-49-2
Molecular Formula	C7H7ClO4S2
Molecular Weight	254.71 g/mol
Synonyms	3-(Methanesulfonyl)benzenesulfonyl chloride; m-(Methylsulfonyl)benzenesulfonyl chloride; 1-(Chlorosulfonyl)-3-(methylsulfonyl)benzene; 3-Methylsulfonylbenzenesulfonyl chloride; Benzenesulfonyl chloride, 3-(methylsulfonyl)-; 3-Mesylbenzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our production of 3-(Methylsulfonyl)Benzenesulfonyl Chloride adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Every lot is characterized using advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

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.

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%

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