InChI=1S/C31H52O/c1-20(2)21-12-14-27(5)16-18-29(7)22(25(21)27)10-11-24-28(6)17-19-31(9,32)26(3,4)23(28)13-15-30(24,29)8/h21-25,32H,1,10-19H2,2-9H3/t21?,22?,23?,24?,25?,27-,28+,29+,30-,31-/m1/s1