InChI=1S/C31H42O9/c1-19(12-9-13-20(2)14-15-31-29(4,5)16-22(32)17-30(31,6)40-31)10-7-8-11-21(3)18-38-28-25(35)23(33)24(34)26(39-28)27(36)37/h7-15,23-26,28,33-35H,16-18H2,1-6H3,(H,36,37)/b8-7+,12-9+,15-14+,19-10+,20-13-,21-11-