2,4(1H,3H)-pteridinedione, 6-bromo-1,3-dimethyl- 6-bromo-1,3-dimethylpteridine-2,4(1H,3H)-dione InChI=1/C8H7BrN4O2/c1-12-6-5(11-4(9)3-10-6)7(14)13(2)8(12)15/h3H,1-2H