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