116758-70-4 5H-1,3,4-Thiadiazolo(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-thiadiazolo(3,2-a)(1,3,5)triazine-5,7(6H)-dione