3(2H)-Pyridazinone, 4-ethoxy-2-ethyl-5-morpholino- 38957-42-5 4-Ethoxy-2-ethyl-5-(4-morpholinyl)-3(2H)-pyridazinone 4-Ethoxy-2-ethyl-5-morpholino-3(2H)-pyridazinone BRN 0997656