InChI=1S/C30H32O9/c1-19(18-38-29(36)14-8-20-6-9-23(32)10-7-20)5-12-26(34)22(17-31)4-2-3-21-15-28(39-30(21)37)25-16-24(33)11-13-27(25)35/h4-11,13-16,26,28,31-35H,2-3,12,17-18H2,1H3/b14-8+,19-5+,22-4+/t26-,28-/m0/s1