InChI=1S/C27H28O16/c1-8-15(30)17(32)20(35)26(39-8)40-11-6-12(29)14-13(7-11)41-22(9-2-4-10(28)5-3-9)23(16(14)31)42-27-21(36)18(33)19(34)24(43-27)25(37)38/h2-8,15,17-21,24,26-30,32-36H,1H3,(H,37,38)