1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(phenylmethyl)- 68298-08-8 N-(Phenylmethyl)-1,1,2,2,3,3,4,4,5,5,5-undecafluoro-1-pentanesulfonamide