Description

Bis[2-(Fluorosulfonyl)Tetrafluoroethyl]Ether is a specialized fluorinated organic compound that serves as a key intermediate and reagent in advanced chemical synthesis. Its unique structure, featuring multiple fluorosulfonyl and tetrafluoroethyl groups, makes it a valuable building block for introducing specific functionalities into target molecules. This high-purity chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise and reliable fluorination agents.

Application

• Lithium-Ion Battery Electrolyte Additive: Used to form a stable solid electrolyte interphase (SEI) layer on electrodes, enhancing battery cycle life and safety under high voltage.
• Pharmaceutical Intermediate: Serves as a critical fluorosulfonylating agent in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for targeted therapies.
• Agrochemical Synthesis: Employed in the production of advanced herbicides and pesticides, where its fluorinated structure contributes to improved efficacy and environmental profile.
• Polymer Modification: Acts as a monomer or cross-linking agent for creating high-performance fluoropolymers with enhanced chemical and thermal resistance.
• Specialty Reagent for Organic Synthesis: Utilized in laboratories for introducing the fluorosulfonyl (-SO2F) group, a versatile handle for further chemical transformations.
• Surface Treatment Agent: Applied in coatings and surface engineering to impart oleophobic, hydrophobic, and chemically inert properties to materials.

Basic Information

Product Name	Bis[2-(Fluorosulfonyl)Tetrafluoroethyl]Ether
CAS No.	146829-79-0
Molecular Formula	C4F10O5S2
Molecular Weight	382.15 g/mol
Synonyms	1,1,2,2-Tetrafluoro-2-[(1,1,2,2-tetrafluoro-2-fluorosulfonylethoxy)sulfonyl]fluoroethyl ether; Bis(1,1,2,2-tetrafluoro-2-fluorosulfonylethyl) ether; Perfluoro-3,6-dioxa-4,5-dithiaoctane-4,5-disulfonyl fluoride; 3,6-Dioxa-4,5-dithiaoctane-4,5-disulfonyl fluoride, 1,1,1,2,2,7,7,8,8,8-decafluoro-; FSO2CF2CF2OCF2CF2SO2F; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of Bis[2-(Fluorosulfonyl)Tetrafluoroethyl]Ether adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopy (NMR, IR), to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, identity, and impurity profiles. We are committed to meeting the exacting standards required for battery materials and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Recommended long-term storage temperature is 2-8°C. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Density (at 20°C)	~1.8 g/mL

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