InChI=1S/C27H30O15/c1-9-18(31)21(34)23(36)27(39-9)41-15-5-10(3-4-12(15)28)24-25(42-26-22(35)19(32)14(30)8-38-26)20(33)17-13(29)6-11(37-2)7-16(17)40-24/h3-7,9,14,18-19,21-23,26-32,34-36H,8H2,1-2H3