InChI=1S/C24H48O4/c1-3-22(2)18-16-14-12-10-8-6-4-5-7-9-11-13-15-17-19-24(27)28-21-23(26)20-25/h22-23,25-26H,3-21H2,1-2H3/t22?,23-/m1/s1