: N,N-Bis(pentafluoroethanesulphonyl)imide, Bis(pentafluoroethylsulfonyl)imide; N,N-Bis(pentafluoroethanesulphonyl)imide; 1,1,2,2,2-pentafluoro-N-(1,1,2,2,2-pentafluoroethylsulfonyl)ethanesulfonamide; 1,1,2,2,2-pentafluoro-N-(pentafluoroethanesulfonyl)ethanesulfonamide; Ethanesulfonamide,1,1,2,2,2-pentafluoro-N-((pentafluoroethyl)sulfonyl)-