InChI=1S/C31H36O17/c1-11-15(42-3)8-17(19-20(33)13(10-44-26(11)19)12-5-6-14(41-2)16(7-12)43-4)45-31-25(38)27(21(34)18(9-32)46-31)47-30-24(37)22(35)23(36)28(48-30)29(39)40/h5-8,10,18,21-25,27-28,30-32,34-38H,9H2,1-4H3,(H,39,40)