Synonyms: Propanoylfluoride, 2,3,3,3-tetrafluoro-2-(pentafluorophenoxy)- (9CI); Propionyl fluoride,tetrafluoro-2-(pentafluorophenoxy)- (8CI);2,3,3,3-Tetrafluoro-2-(pentafluorophenoxy)propionyl fluoride;Perfluoro-2-(perfluorophenoxy)propionyl fluoride