InChI=1S/C25H42O9/c1-3-4-15-18(33-25-22(29)20(27)21(28)23(34-25)24(30)31)16-13-11-9-7-5-6-8-10-12-14-17-19(26)32-2/h7,9,13,16,18,20-23,25,27-29H,3-6,8,10-12,14-15,17H2,1-2H3,(H,30,31)/b9-7+,16-13-