InChI=1S/C29H26O16/c30-15-4-1-12(2-5-15)3-6-21(35)42-11-20-24(38)25(39)26(44-27(40)13-7-16(31)22(36)17(32)8-13)29(43-20)45-28(41)14-9-18(33)23(37)19(34)10-14/h1-10,20,24-26,29-34,36-39H,11H2/b6-3+