InChI=1S/C27H54O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-27(30)31-25-26(29)24-28/h26,28-29H,2-25H2,1H3/t26-/m1/s1