1-(3,5-Diamino-4-pyridyl)-4-(p-tolyl)piperazine 14549-73-6 4-(p-Tolyl)-1-(3,5-diamino-4-pyridyl)piperazine 5-23-03-00100 (Beilstein Handbook Reference) BRN 0623977 Piperazine, 1-(3,5-diamino-4-pyridyl)-4-(p-tolyl)-