InChI=1S/C31H50O8/c1-21-14-11-9-7-5-6-8-10-12-17-28(35)22(2)29(36)20-27(34)18-25(32)15-13-16-26(33)19-30(37)23(3)31(38)39-24(21)4/h5-12,14,17,21-30,32-37H,13,15-16,18-20H2,1-4H3/b6-5+,9-7+,10-8+,14-11+,17-12+