InChI=1/C20H13BrN4O4/c21-13-6-8-14(9-7-13)24-20(27)18(19(26)22-24)12-16-5-2-10-23(16)15-3-1-4-17(11-15)25(28)29/h1-12H,(H,22,26)/b18-12+/f/h22H	3550B4ACBFE259B6