1H-Pyridazino(1,2-a)(1,2,5)triazepine-1,5(2H)-dione, hexahydro-3-(4-methylphenyl)- 69405-18-1 BRN 0682512 Hexahydro-3-(4-methylphenyl)-1H-pyridazino(1,2-a)(1,2,5)triazepine-1,5(2H)-dione