1-Methyl-5-(1-methylethenyl)-2-nitro-1H-imidazole 1-Methyl-5-(1-methylvinyl)-2-nitro-1H-imidazole 5-23-05-00409 (Beilstein Handbook Reference) 5-Isopropenyl-1-methyl-2-nitroimidazole 64157-78-4 BRN 0779586 Imidazole, 5-isopropenyl-1-methyl-2-nitro-