4-Amino-2-methyldipyrido(1,2-a:3',2'-d)imidazole 81810-24-4 Dipyrido(1,2-a:3',2'-d)imidazol-4-amine, 2-methyl- Dipyrido(1,2-a:3',2'-d)imidazole, 4-amino-2-methyl-