InChI=1S/C27H30O16/c1-7-16(32)19(35)21(37)26(39-7)42-24-12(30)3-9(4-13(24)31)23-25(43-27-22(38)20(36)17(33)8(2)40-27)18(34)15-11(29)5-10(28)6-14(15)41-23/h3-8,16-17,19-22,26-33,35-38H,1-2H3