3(2H)-Pyridazinone, 4-methoxy-2-methyl-5-morpholino- 39030-44-9 4-Methoxy-2-methyl-5-(4-morpholinyl)-3(2H)-pyridazinone 4-Methoxy-2-methyl-5-morpholino-3(2H)-pyridazinone BRN 0991729 M 75167