InChI=1S/C30H26O14/c31-12-21-24(38)28(43-22(37)8-3-13-1-5-15(32)6-2-13)26(40)30(42-21)44-29-25(39)23-19(36)10-16(33)11-20(23)41-27(29)14-4-7-17(34)18(35)9-14/h1-11,21,24,26,28,30-36,38,40H,12H2/b8-3+