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