1-Butanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,4-nonafluoro-N-(2-hydroxyethyl)- 34449-89-3 EINECS 252-035-8 N-Ethyl-1,1,2,2,3,3,4,4,4-nonafluoro-N-(2-hydroxyethyl)butane-1-sulphonamide N-Ethylnonafluoro-N-(2-hydroxymethyl)-1-butanesulfonamide