1,4-Dihydro-1-methyl-4-oxo-3-pyridinecarboxamide 1-Methyl-4-oxo-1,4-dihydro-3-pyridinecarboxamide 1-Methyl-4-pyridone-3-carboximide 3-Pyridinecarboxamide, 1,4-dihydro-1-methyl-4-oxo- 769-49-3