InChI=1S/C26H30O14/c27-9-15-17(30)18(31)20(33)23(38-15)16-11(4-1-10-2-5-12(28)6-3-10)7-13(29)8-14(16)39-26-22(35)19(32)21(34)24(40-26)25(36)37/h1-8,15,17-24,26-35H,9H2,(H,36,37)/b4-1+