1H-(1,2,4)Triazolo(1,2-a)pyridazine-1,3(2H)-dione, tetrahydro-2-(3-methylphenyl)- 2-(3-Methylphenyl)-1H-tetrahydro(1,2,4)triazolo(1,2-a)pyridazine-1,3(2H)-dione 58744-01-7