InChI=1S/C26H46O9/c1-2-3-4-5-6-7-10-13-16-19(17-14-11-8-9-12-15-18-20(27)28)34-26-23(31)21(29)22(30)24(35-26)25(32)33/h13,16,19,21-24,26,29-31H,2-12,14-15,17-18H2,1H3,(H,27,28)(H,32,33)/b16-13+