InChI=1S/C27H40O/c1-17(2)18(3)6-7-19(4)25-12-13-26-24-10-8-20-16-21(28)9-11-22(20)23(24)14-15-27(25,26)5/h8,10,17,19,21,25-26,28H,3,6-7,9,11-16H2,1-2,4-5H3/t19-,21+,25-,26+,27-/m1/s1