Description

3-Fluorosulphonylbenzenesulphonyl Chloride is a highly reactive and versatile chemical intermediate characterized by its dual sulfonyl functional groups. This compound is critical for the synthesis of advanced materials and active pharmaceutical ingredients (APIs) where precise molecular modification is required. It is primarily utilized by research and development teams, as well as production chemists, in the pharmaceutical, agrochemical, and specialty chemical industries to introduce fluorosulfonyl and sulfonyl chloride moieties into target molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drugs, including protease inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of novel herbicides and fungicides that require the fluorosulfonyl group for enhanced bioactivity and stability.
• Polymer Modification: Serves as a functionalizing agent to introduce sulfonyl chloride groups into polymer chains for creating ion-exchange resins or specialty membranes.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of high-performance, light-fast dyes and organic pigments.
• Chemical Research & Development: A valuable reagent for exploring new reaction pathways and creating novel chemical entities in academic and industrial R&D settings.
• Ligand Synthesis for Catalysis: Used to prepare sophisticated ligands for transition metal catalysts used in asymmetric synthesis.

Basic Information

Product Name	3-Fluorosulphonylbenzenesulphonyl Chloride
CAS No.	2489-52-3
Molecular Formula	C6H3ClFO4S2
Molecular Weight	258.67 g/mol
Synonyms	3-(Fluorosulfonyl)benzenesulfonyl chloride; m-Fluorosulfonylbenzenesulfonyl Chloride; 1-Fluorosulfonyl-3-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 3-(fluorosulfonyl)-; 3-Fluorosulfonylbenzene-1-sulfonyl chloride; 2489-52-3; 3-FSO2C6H4SO2Cl
EINECS	Contact for details

Quality Control

Every batch of 3-Fluorosulphonylbenzenesulphonyl Chloride is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for sensitive synthetic applications. A detailed Certificate of Analysis (COA) is supplied with each shipment, confirming identity, purity, and impurity profiles as determined by advanced chromatographic and spectroscopic methods.

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 decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
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.