1-(2-(Benzhydryloxy)ethyl)-4-(4-(phthalimido)butyl)piperazine dimethanesulfonate 116738-09-1 1H-Isoindole-1,3(2H)-dione, 2-(4-(4-(2-(diphenylmethoxy)ethyl)-1-piperazinyl)butyl)-, dimethanesulfonate