InChI=1S/C26H46O9/c27-19-17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20(28)34-26-23(31)21(29)22(30)24(35-26)25(32)33/h1,3,21-24,26-27,29-31H,2,4-19H2,(H,32,33)/b3-1+