2H-Pyrano(2,3-b)pyridin-2-one, 4-methyl-7-(4-morpholinyl)- 4-Methyl-7-morpholino-2H-pyrano(2,3-b)pyridin-2-one 57980-07-1 7-(1-Morpholino)-4-methyl-8-azacoumarin EINECS 261-054-0