InChI=1S/C25H42O9/c1-18(33-25-22(29)20(27)21(28)23(34-25)24(30)31)16-14-12-10-8-6-4-3-5-7-9-11-13-15-17-19(26)32-2/h3-4,8,10,18,20-23,25,27-29H,5-7,9,11-17H2,1-2H3,(H,30,31)/b4-3+,10-8-