InChI=1S/C29H32O17/c1-12(30)38-10-19-23(41-14(3)32)22(36)24(42-15(4)33)26(43-19)46-29-25(20(11-39-29)40-13(2)31)44-27(37)28(29)18(9-21(35)45-28)16-5-7-17(34)8-6-16/h5-8,18-20,22-26,34,36H,9-11H2,1-4H3