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Nonafluoro-1-butanesulfonyl chloride CAS 2991-84-6

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  • Chemical name: Nonafluoro-1-butanesulfonyl chloride

  • Common abbreviation: NfSO₂Cl

  • Molecular formula: C₄F₉SO₂Cl

  • Molecular weight: ~282 g/mol

  • Appearance: Colorless to pale yellow liquid

  • Odor: Strong, pungent sulfonyl chloride odor

Key Properties

  • Highly reactive sulfonyl chloride functional group

  • Moisture-sensitive; hydrolyzes in the presence of water

  • Perfluoroalkyl chain provides excellent chemical and thermal stability

Applications

  • Intermediate for nonaflate (nonafluorobutanesulfonate) esters

  • Used in cross-coupling chemistry as a nonaflate-forming reagent

  • Synthesis of fluorinated sulfonamides and specialty fluorochemicals

  • Applied in pharmaceutical and fine chemical synthesis

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