InChI=1S/C25H28O13/c1-4-10(2)23(32)37-19-14-12(7-5-11-6-8-13(26)36-18(11)14)35-21(19)25(3,33)9-34-24-17(29)15(27)16(28)20(38-24)22(30)31/h4-8,15-17,19-21,24,27-29,33H,9H2,1-3H3,(H,30,31)/b10-4+