InChI=1S/C20H32O4/c1-10(2)13-16(22)17(23)15-18-14-11(9-24-18)12(21)5-6-19(14,3)7-8-20(13,15)4/h10,12-13,15-18,21-23H,5-9H2,1-4H3/t12-,13-,15+,16+,17-,18-,19-,20+/m0/s1