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