70172-53-1 Guanidine, N-methyl-N'-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)- N-Methyl-N'-(2-(((5-methyl-1H-imidazole-4-yl)methyl)thio)ethyl)guanidine SK&F 92408 SK&F-92408 Skf 92408