InChI=1S/C27H42O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h7,19-20,23-24H,6,8-17H2,1-5H3/t19-,20+,23-,24+,26+,27-/m1/s1