Perfluorobutyl Iodide (CAS 423-39-2) Market Research Report 2026 '@aboutPerfluorobutyl iodide is a clear colourless liquid with a pungent odor. Its chemical formula is C4F9I. It has a melting point of -88 °C and a boiling point of 66-67 °C. The substance is immiscible. The chemical is stable at normal temperatures and ...