InChI=1S/C31H32O18/c1-11(33)43-26-22(37)20(10-32)48-31(28(26)44-12(2)34)46-15-7-16(35)21-17(36)9-18(47-19(21)8-15)13-3-5-14(6-4-13)45-30-25(40)23(38)24(39)27(49-30)29(41)42/h3-9,20,22-28,30-32,35,37-40H,10H2,1-2H3,(H,41,42)