Description

1,1,2,2-Tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonyl Fluoride (CAS No. 104729-49-9) is a highly fluorinated sulfonyl fluoride compound with the molecular formula C₄HF₉O₃S. This specialized chemical features a unique perfluoroether backbone coupled with a reactive sulfonyl fluoride group, making it a valuable intermediate in advanced organic synthesis and materials science. Its exceptional thermal and chemical stability, along with its hydrophobic properties, make it suitable for applications requiring resistance to harsh environments. The compound is supplied as a high-purity liquid (verify physical state) and should be stored under inert conditions to maintain stability. Researchers utilize this compound in the development of fluoropolymers, surface modifiers, and as a building block for more complex fluorinated architectures. Proper handling with appropriate PPE is required due to the reactive nature of the sulfonyl fluoride moiety.

Properties

• CAS Number: 104729-49-9
• Complexity: 368
• IUPAC Name: 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonyl fluoride
• InChI: InChI=1S/C4HF9O3S/c5-1(6)2(7,8)16-3(9,10)4(11,12)17(13,14)15/h1H
• InChI Key: XLXYXEHVIIRCGY-UHFFFAOYSA-N
• Exact Mass: 299.95026852
• Molecular Formula: C4HF9O3S
• Molecular Weight: 300.10
• SMILES: C(C(OC(C(F)(F)S(=O)(=O)F)(F)F)(F)F)(F)F
• Topological: 51.8
• Monoisotopic Mass: 299.95026852
• Synonyms: 104729-49-9, 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonyl Fluoride, 1,1,2,2-Tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulphonyl fluoride, 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethane-1-sulfonyl fluoride, XLXYXEHVIIRCGY-UHFFFAOYSA-N, MFCD07778617, Ethanesulfonylfluoride, 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)-, SCHEMBL29110268, DTXSID40446988, 1,1,2,2-Tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulphonylfluoride, AKOS015898897, 5H-Octafluoro-3-oxapentanesulfonyl fluoride, DB-080994, NS00018732, H11739, 4-Difluoromethyl-perfluoro-3-oxabutanesulfonyl fluoride, 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonylFluoride

Application

This fluorinated sulfonyl fluoride is primarily employed as a key intermediate in the synthesis of advanced fluorinated materials, including specialty polymers and surfactants. Its reactivity enables incorporation into molecules requiring enhanced thermal and chemical resistance. Researchers also explore its use in surface modification applications to impart hydrophobic and oleophobic properties. Additionally, it serves as a precursor for further functionalization in pharmaceutical and agrochemical research.

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