InChI=1S/C27H46O4/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-24(28)22-25(29)19-17-23-18-20-26(30)27(21-23)31-2/h18,20-21,24,28,30H,3-17,19,22H2,1-2H3