InChI=1S/C20H30O4/c1-7-12(4)19(23)24-18-16-9-14(21)8-13(5)20(16,6)10-15(11(2)3)17(18)22/h7,13,15-18,22H,2,8-10H2,1,3-6H3/b12-7+/t13-,15+,16+,17+,18-,20+/m0/s1