CAS 355-43-1

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Chemical Name: 1,1,1,2,2,3,3,4,4-Nonafluoro-4-iodobutane (Perfluorobutyl iodide)
CAS Number:423-39-2
Molecular Formula:C₄F₉I
Molecular Weight: 345.93 g/mol

Physical Form:
Clear, colourless to pale liquid; may appear as a faint “clear purple” liquid depending on storage or lighting conditions.

Applications:
Used as a fluorinated building block and synthetic intermediate, including in the preparation of fluorinated surfactants, specialty polymers, functional materials, and compounds used in fluorous-phase chemistry.