InChI=1S/C27H26O16/c1-7-17(31)19(33)21(35)24(40-7)16-14(42-27-23(37)20(34)22(36)25(43-27)26(38)39)6-13-15(18(16)32)11(30)5-12(41-13)8-2-3-9(28)10(29)4-8/h2-7,19-25,27-29,32-37H,1H3,(H,38,39)