InChI=1/C12H12Br2N2O4/c13-7-4-5-8(14)9(6-7)15-12(20)16-10(17)2-1-3-11(18)19/h4-6H,1-3H2,(H,18,19)(H2,15,16,17,20)/p-1/fC12H11Br2N2O4/h15-16H/q-1 BCA953EE72A0BBB7