InChI=1S/C27H30O16/c28-8-13-15(29)17(31)21(35)27(42-13)41-12-7-10(39-26-22(36)18(32)20(34)24(43-26)25(37)38)6-11-14(12)16(30)19(33)23(40-11)9-4-2-1-3-5-9/h1-7,13,15,17-24,26-29,31-36H,8H2,(H,37,38)