67026-44-2 BRN 0427663 Guanidine, 1-tert-butyl-2-cyano-3-(2,6-dimethoxy-3-pyridyl)- Guanidine, N-cyano-N'-(2,6-dimethoxy-3-pyridinyl)-N''-(1,1-dimethylethyl)- N-Cyano-N'-(2,6-dimethoxy-3-pyridinyl)-N''-(1,1-dimethylethyl)guanidine