1-tert-Butyl-2-cyano-3-(1-ethyl-3-methyl-5-pyrazolyl)guanidine 67026-67-9 BRN 0810091 Guanidine, 1-tert-butyl-2-cyano-3-(1-ethyl-3-methyl-5-pyrazolyl)- Guanidine, N-cyano-N'-(1,1-dimethylethyl)-N''-(1-ethyl-3-methyl-1H-pyrazol-5-yl)-