InChI=1S/C34H30O10/c35-22-8-4-7-20(15-22)27-26-21(16-23(36)17-25(26)43-31(27)19-5-2-1-3-6-19)12-9-18-10-13-24(14-11-18)42-34-30(39)28(37)29(38)32(44-34)33(40)41/h1-17,27-32,34-39H,(H,40,41)/b12-9+