5-Chloro-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-5-nitro-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Chloro-6-nitro-5-(trifluoromethoxy)pyridine-3-carboxylic acid