InChI=1S/C20H30O5/c21-17-10-6-2-1-3-7-12-18(22)13-8-4-5-9-14-19(23)15-11-16-20(24)25/h3-5,7-9,13-14,19,21,23H,1-2,6,10-12,15-17H2,(H,24,25)/b5-4+,7-3-,13-8+,14-9-/t19-/m0/s1