InChI=1/C9H6Br4N2O5S/c1-20-9(14)15-21(18,19)7-2(8(16)17)3(10)4(11)5(12)6(7)13/h1H3,(H2,14,15)(H,16,17)/p-1/fC9H5Br4N2O5S/h14H2/q-1 C2B8D2161650D2B8