InChI=1S/C27H30O16/c1-8-23(42-27-21(37)19(35)17(33)15(7-28)41-27)20(36)22(38)26(39-8)43-25-18(34)16-13(32)5-10(29)6-14(16)40-24(25)9-2-3-11(30)12(31)4-9/h2-6,8,15,17,19-23,26-33,35-38H,7H2,1H3