Description

1,1,2,2-Tetrafluoro-2-(1,1,2,2-Tetrafluoroethoxy)Ethanesulphonyl Fluoride is a high-value, specialized fluorinated sulfonyl fluoride building block. This compound is critical for introducing perfluoroalkoxy sulfonyl functionalities into advanced materials and pharmaceuticals. It is primarily sought by R&D and production chemists in the pharmaceutical, agrochemical, and specialty polymer industries for synthesizing novel active ingredients and high-performance fluoropolymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based active pharmaceutical ingredients (APIs), particularly those requiring enhanced metabolic stability and lipophilicity.
• Agrochemical Synthesis: Used in creating advanced herbicides and fungicides where the perfluoroalkoxy sulfonyl group contributes to weather resistance and biological activity.
• Polymer Modification: Serves as a monomer or grafting agent for producing specialty fluoropolymers with unique surface properties, chemical resistance, and low dielectric constants.
• Lithium-Ion Battery Electrolytes: Potential component in the development of novel sulfonyl fluoride-based additives for electrolyte formulations to improve battery performance and safety.
• Material Science Research: Employed in academic and industrial R&D for creating novel fluorinated surfactants, coatings, and liquid crystals.
• Cross-coupling Reagent: Acts as a versatile reagent in palladium-catalyzed cross-coupling reactions to introduce fluorinated sulfone groups into complex organic molecules.

Basic Information

Product Name	1,1,2,2-Tetrafluoro-2-(1,1,2,2-Tetrafluoroethoxy)Ethanesulphonyl Fluoride
CAS No.	104729-49-9
Molecular Formula	C4H2F10O3S
Molecular Weight	320.11 g/mol
Synonyms	1,1,2,2-Tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonyl fluoride; 2-(1,1,2,2-Tetrafluoroethoxy)-1,1,2,2-tetrafluoroethanesulfonyl fluoride; Tetrafluoro(1,1,2,2-tetrafluoroethoxy)ethanesulfonyl fluoride; Perfluoro(2-ethoxyethane)sulfonyl fluoride; FESF derivative; TFESF; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Every batch of our 1,1,2,2-Tetrafluoro-2-(1,1,2,2-Tetrafluoroethoxy)Ethanesulphonyl Fluoride is produced and tested under a strict quality management system. We ensure high purity and batch-to-batch consistency through advanced analytical techniques including GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acidity (Titration)	≤ 0.1%

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