3(2H)-Pyridazinone, 4-butoxy-2-methyl-5-morpholino- 39020-77-4 4-Butoxy-2-methyl-5-(4-morpholinyl)-3(2H)-pyridazinone 4-Butoxy-2-methyl-5-morpholino-3(2H)-pyridazinone BRN 1002177 M 75169