پرفلوئوروهگزان

Also known as n-tetradecafluorohexane, Perflexane, n-perfluorohexane, 1,1,1,2,2,3,3,4,4,5,5,6,6,6-tetradecafluorohexane, Perfluorohexane, PFC-51-14, tetradecafluorohexane

Perfluorohexane (), or tetradecafluorohexane, is a fluorocarbon. It is a derivative of hexane in which all the hydrogen atoms are replaced by fluorine atoms. It is used in one formulation of the electronic cooling liquid/insulator Fluorinert for low-temperature applications due to its low boiling point of 56 °C and freezing point of −90 °C. It is odorless and colorless. Unlike typical hydrocarbons, the structure features a helical carbon backbone. In medical imaging it is used as a contrast agent.