5-Iodooctafluoro-3-oxapentanesulfonyl fluoride2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride5-Iodooctafluoro-3-oxapentanesulphonyl fluoride5-Iodoperfluoro-3-oxapentanesulphonyl fluoride2-(2-碘-四氟乙氧基)四氟乙基硫酰氟Tetrafluoro-2-(tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride