InChI=1S/C27H30O17/c28-7-14-17(32)18(33)21(36)27(42-14)43-23-15-10(29)5-12(41-13(15)6-11(30)16(23)31)8-1-3-9(4-2-8)40-26-22(37)19(34)20(35)24(44-26)25(38)39/h1-4,6,12,14,17-22,24,26-28,30-37H,5,7H2,(H,38,39)