InChI=1/C20H16Br2O10/c1-25-15-11(21)9(19(23)27-3)7(13-17(15)31-5-29-13)8-10(20(24)28-4)12(22)16(26-2)18-14(8)30-6-32-18/h5-6H2,1-4H3 151ACA2E8A900860