InChI=1S/C27H30O17/c28-7-14-16(31)18(33)21(36)27(42-14)43-23-15-10(30)5-11(8-1-3-9(29)4-2-8)40-12(15)6-13(17(23)32)41-26-22(37)19(34)20(35)24(44-26)25(38)39/h1-4,6,11,14,16,18-22,24,26-29,31-37H,5,7H2,(H,38,39)