InChI=1S/C27H28O16/c1-38-13-6-10(28)7-14-15(13)17(31)23(42-26-20(34)16(30)12(29)8-39-26)22(41-14)9-3-2-4-11(5-9)40-27-21(35)18(32)19(33)24(43-27)25(36)37/h2-7,12,16,18-21,24,26-30,32-35H,8H2,1H3,(H,36,37)