1-tert-Butyl-2-cyano-3-(3-pyridyl)guanidine 60559-94-6 BRN 0479173 GUANIDINE, 1-tert-BUTYL-2-CYANO-3-(3-PYRIDYL)- Guanidine, N-cyano-N'-(1,1-dimethylethyl)-N''-3-pyridinyl-