InChI=1S/C31H52O9/c1-25(2,39)30(40,16-33)9-8-17(14-32)23-18(34)13-27(4)19-6-7-20-28(5,24(37)38)21(35)12-22(36)31(20)15-29(19,31)11-10-26(23,27)3/h17-23,32-36,39-40H,6-16H2,1-5H3,(H,37,38)