InChI=1S/C27H29O17/c28-7-16-17(32)18(33)21(36)27(43-16)42-15-6-10-12(30)4-9(40-26-22(37)19(34)20(35)24(44-26)25(38)39)5-14(10)41-23(15)8-1-2-11(29)13(31)3-8/h1-6,16-22,24,26-37H,7H2,(H,38,39)