1,2,4-Triazolo(4,3-b)pyridazine, 8-methyl-6-(4-morpholinyl)- 56383-06-3 8-Methyl-6-(4-morpholinyl)-1,2,4-triazolo(4,3-b)pyridazine 8-Methyl-6-morpholino-s-triazolo(4,3-b)pyridazine