InChI=1S/C25H46O4/c1-6-7-8-9-10-11-12-13-14-15-16-17-18-21-28-23(26)19-20-24(27)29-22(2)25(3,4)5/h19-20,22H,6-18,21H2,1-5H3/b20-19+