1-(3-Amino-2-pyridyl)-4-(p-tolyl)piperazine 16019-80-0 4-(p-Tolyl)-1-(3-amino-2-pyridyl)piperazine 5-23-03-00095 (Beilstein Handbook Reference) BRN 0620875 Piperazine, 1-(3-amino-2-pyridyl)-4-(p-tolyl)-