InChI=1S/C37H56O9/c1-20(33(41)42)12-13-27(44-22(3)38)21(2)26-18-31(46-24(5)40)37(10)32-25(14-17-36(26,37)9)35(8)16-15-30(45-23(4)39)34(6,7)29(35)19-28(32)43-11/h12,21,26-31H,13-19H2,1-11H3,(H,41,42)/b20-12+