InChI=1S/C27H28O17/c28-6-14-17(33)18(34)20(36)24(42-14)16-13(43-27-22(38)19(35)21(37)25(44-27)26(39)40)5-11(32)15-10(31)4-12(41-23(15)16)7-1-2-8(29)9(30)3-7/h1-5,14,17-22,24-25,27-30,32-38H,6H2,(H,39,40)