1-Methyl-4-nitro-5-thioimidazole 1H-Imidazole-5-thiol, 1-methyl-4-nitro- (9CI) 5-Mercapto-1-methyl-4-nitroimidazole 6339-54-4 CCRIS 3710 Imidazole-5-thiol, 1-methyl-4-nitro- (8CI) NSC 38074