InChI=1S/C30H34O9S/c1-18(2)8-11-22-26(32)15-14-25-28(34)24(30(39-29(22)25)23-13-10-21(31)16-27(23)33)12-9-19(3)6-5-7-20(4)17-38-40(35,36)37/h7-10,13-16,31-33H,5-6,11-12,17H2,1-4H3,(H,35,36,37)/b19-9?,20-7+