1-(2-(Benzhydryloxy)ethyl)-4-(2-(phthalimido)ethyl)piperazine dimethanesulfonate 116685-89-3 1H-Isoindole-1,3(2H)-dione, 2-(2-(4-(2-(diphenylmethoxy)ethyl)-1-piperazinyl)ethyl)-, dimethanesulfonate