1-Methyl-1H-benzoimidazole-2-carbaldehyde1-methyl-1H-1,3-benzodiazole-2-carbaldehyde1-Methyl-1H-benzimidazole-2-carbaldehyde1-Methyl-1H-benzimidazole-2-carboxaldehyde1-Methylbenzimidazole-2-carboxaldehyde1-Methyl-2-formylbenzimidazole1-甲基-2-甲酸苯并咪唑2-Formyl-1-methyl-1H-benzimidazole