InChI=1S/C34H50O9/c1-16(2)17(3)7-8-18(4)20-9-10-21-23-22(12-13-32(20,21)5)33(6)14-11-19(15-34(33)29(43-34)24(23)35)41-31-27(38)25(36)26(37)28(42-31)30(39)40/h7-8,16-21,25-29,31,36-38H,9-15H2,1-6H3,(H,39,40)/b8-7+