Description

2-Chloro-1,1,2,2-Tetrafluoro-Ethanesulfonyl Chloride is a highly reactive and versatile fluorinated sulfonyl chloride intermediate. This compound is critical for introducing the perfluoroalkylsulfonyl group, a key structural motif that imparts unique chemical stability and lipophilicity. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for synthesizing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drugs and bioactive molecules.
• Agrochemical Synthesis: Used in creating advanced herbicides and fungicides with enhanced environmental stability.
• Polymer Modification: Serves as a monomer or grafting agent for producing specialty fluoropolymers with high chemical and thermal resistance.
• Liquid Crystal & OLED Materials: Integral in the development of fluorinated components for electronic display technologies.
• Lithium-Ion Battery Electrolytes: Employed in the research and production of novel sulfonylimide-based lithium salts.
• Surface Treatment Agents: Used to create hydrophobic and oleophobic coatings on various substrates.

Basic Information

Product Name	2-Chloro-1,1,2,2-Tetrafluoro-Ethanesulfonyl Chloride
CAS No.	89740-40-9
Molecular Formula	C2Cl2F4O2S
Molecular Weight	234.98 g/mol
Synonyms	Perfluoroethanesulfonyl Chloride; 1,1,2,2-Tetrafluoro-2-chloroethanesulfonyl Chloride; Tetrafluoro(2-chloro)ethanesulfonyl Chloride; 2-Chlorotetrafluoroethanesulfonyl Chloride; CF2ClCF2SO2Cl; PESF-Cl; FES-Cl
EINECS	Contact for details

Quality Control

Our 2-Chloro-1,1,2,2-Tetrafluoro-Ethanesulfonyl Chloride is manufactured under stringent controls to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Quality is verified through advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

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). This material is hygroscopic (moisture-sensitive) and reacts vigorously with strong bases and nucleophiles; keep away from incompatible substances. Use appropriate corrosion-resistant storage equipment.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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