InChI=1S/C24H36O4/c1-16(2)10-8-11-17(3)12-9-13-18(4)14-15-20-19(5)21(25)23(27-6)24(28-7)22(20)26/h10,12,14,25-26H,8-9,11,13,15H2,1-7H3/b17-12+,18-14+