InChI=1S/C20H32O4/c1-13(12-17(21)22)9-11-19(3)14(2)7-8-16-15(19)6-5-10-20(16,4)18(23)24/h6,13-14,16H,5,7-12H2,1-4H3,(H,21,22)(H,23,24)