InChI=1S/C25H42O9/c1-32-19(26)17-15-13-11-9-7-5-3-2-4-6-8-10-12-14-16-18-33-25-22(29)20(27)21(28)23(34-25)24(30)31/h2-3,6,8,20-23,25,27-29H,4-5,7,9-18H2,1H3,(H,30,31)/b3-2+,8-6-