1-tert-Butyl-3-(5-chloro-2-pyridyl)-2-cyanoguanidine 5-22-08-00457 (Beilstein Handbook Reference) 67026-61-3 BRN 0410669 GUANIDINE, 1-tert-BUTYL-3-(5-CHLORO-2-PYRIDYL)-2-CYANO-