InChI=1S/C40H38O9/c1-21(2)4-11-27-33(44)16-14-29(38(27)47)40(49)36-30(26-12-10-25(42)20-35(26)46)18-22(3)19-31(36)37-34(45)17-13-28(39(37)48)32(43)15-7-23-5-8-24(41)9-6-23/h4-10,12-17,19-20,30-31,36,41-42,44-48H,11,18H2,1-3H3/b15-7+