InChI=1S/C30H38O11/c1-16(2)5-9-22(40-30-27(35)25(33)26(34)28(41-30)29(36)37)18(4)14-20(31)13-17(3)11-12-38-21-8-6-19-7-10-24(32)39-23(19)15-21/h5-8,10-11,14-15,20,22,25-28,30-31,33-35H,9,12-13H2,1-4H3,(H,36,37)/b17-11+,18-14-