InChI=1S/C31H42O18/c1-10-2-3-11-13(8-43-27(16(10)11)47-29-22(39)20(37)18(35)14(6-32)44-29)26(41)46-24-12-4-5-42-28(17(12)31(9-34)25(24)49-31)48-30-23(40)21(38)19(36)15(7-33)45-30/h4-5,8,11-12,14-25,27-30,32-40H,1-3,6-7,9H2