1,2-Diphenyl-2'-(4-(2-pyridyl)piperazinyl)diethylamine 1-(2-(1,2-Diphenylethylamino)ethyl)-4-(2-pyridyl)piperazine 23892-54-8 Diethylamine, 1,2-diphenyl-2'-(4-(2-pyridyl)piperazinyl)- Piperazine, 1-(2-(1,2-diphenylethylamino)ethyl)-4-(2-pyridyl)-