2H-Oxazolo(3,2-a)-1,3,5-triazine-2,4(3H)-dione, 3-(4-nitrophenyl)- 3-(4-Nitrophenyl)-2H-oxazolo(3,2-a)-1,3,5-triazine-2,4(3H)-dione 35629-64-2 BRN 0831645