1H-Pyridazino(1,2-a)(1,2,5)triazepine-1,5(2H)-dione, hexahydro-3-(2-methylpropyl)- 69405-15-8 BRN 0661773 Hexahydro-3-(2-methylpropyl)-1H-pyridazino(1,2-a)(1,2,5)triazepine-1,5(2H)-dione