1-Methyl-2-formyl-5-nitroimidazole 1-Methyl-5-nitro-1H-imidazole-2-carbaldehyde 1-Methyl-5-nitro-imidazole-2-carboxaldehyde 4750-57-6 5-24-02-00085 (Beilstein Handbook Reference) BRN 0610005 EINECS 225-270-9 Imidazole-2-carboxaldehyde, 1-methyl-5-nitro- L 12375 NSC 302660 ZK 28943