EINECS 271-451-0, N-Ethyl-pentadecafluoro-N-(2-hydroxyethyl)-1-heptanesulfonamide, 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)-, N-Ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)heptane-1-sulphonamide,