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