InChI=1S/C25H34O18/c26-9-6-38-23(15(31)11(9)27)39-7-10-12(28)19(42-24-16(32)13(29)14(30)20(43-24)22(36)37)17(33)25(40-10)41-18(21(34)35)8-4-2-1-3-5-8/h1-5,9-20,23-33H,6-7H2,(H,34,35)(H,36,37)