1-(2-((3,5-Diamino-4-pyridyl)amino)ethyl)piperidine 3,5-Diamino-4-(beta-piperidylethylamino)pyridine 4057-51-6 BRN 0482280 Piperidine, 1-(2-((3,5-diamino-4-pyridyl)amino)ethyl)-