InChI=1S/C20H32Br2O2/c1-14(15-8-12-20(5,23)17(22)13-15)7-6-10-19(4)11-9-16(21)18(2,3)24-19/h6-7,10,15-17,23H,8-9,11-13H2,1-5H3/b10-6+,14-7+/t15-,16-,17-,19-,20+/m0/s1