4-Nitropicolinic acid 1-oxide

2-Carboxy-4-nitropyridine 1-oxide

4-Nitro-2-pyridinecarboxylic acid 1-oxide

4-nitropyridine-2-carboxylic acid 1-oxide

4-NNITROPYRIDINE-2-CARBOXYLIC ACID 1-OXIDE

2-Pyridinecarboxylic acid, 4-nitro-, 1-oxide