InChI=1S/C20H32O6/c1-2-3-6-9-15(21)12-13-18-16(17(22)14-20(25)26-18)10-7-4-5-8-11-19(23)24/h3-4,6-7,12-13,15-18,20-22,25H,2,5,8-11,14H2,1H3,(H,23,24)/b6-3+,7-4+,13-12+