SEARCH Articles Figures Tables 2- 5-nitropyridine 2- Chloro-3-nitropyridine 2- Chloro-3-nitropyridines 3- Chloro-4-nitropyridine-1-oxide 3- Chloro-4-nitropyridine-l-oxide reaction with mercaptopyridinols 4- Nitropyridine-l-oxide