InChI=1S/C26H48O7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-32-26-23(29)21(27)22(28)24(33-26)25(30)31/h9-10,21-24,26-29H,2-8,11-20H2,1H3,(H,30,31)/b10-9+