1-Methyl-2-chloro-4-nitroimidazole 1H-Imidazole, 2-chloro-1-methyl-4-nitro- 2-CHLORO-1-METHYL-4-NITRO-1H-IMIDAZOLE 5-23-04-00492 (Beilstein Handbook Reference) 63634-21-9 BRN 0510609