Isonicotinicacid, 1,2-dihydro-1-methyl-2-oxo- (6CI,8CI);1-Methyl-2-oxo-1,2-dihydro-4-pyridinecarboxylic acid; 1-Methyl-4-carboxypyridinone-2;2-Hydroxy-N-methylisonicotinate; N-Methyl-2-pyridone-4-carboxylic acid
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