116786-75-5 5H-1,3,4-Oxadiazolo(3,2-a)(1,3,5)triazine-5,7(6H)-dione, 6-phenyl-2-(3,4,5-trimethoxyphenyl)- 6-Phenyl-2-(3,4,5-trimethoxyphenyl)-5H-1,3,4-oxadiazolo(3,2-a)(1,3,5)triazine-5,7(6H)-dione