InChI=1S/C26H26O13/c1-10(9-27)2-3-11-6-12(4-5-14(11)28)23-20(32)18(30)17-15(29)7-13(8-16(17)38-23)37-26-22(34)19(31)21(33)24(39-26)25(35)36/h2,4-8,19,21-22,24,26-29,31-34H,3,9H2,1H3,(H,35,36)/b10-2+