InChI=1S/C26H30O14/c27-10-16-17(29)18(30)21(33)25(39-16)37-14-5-3-11(4-6-14)1-2-12-7-13(28)9-15(8-12)38-26-22(34)19(31)20(32)23(40-26)24(35)36/h1-9,16-23,25-34H,10H2,(H,35,36)/b2-1+