InChI=1/C25H26F4O2/c1-16-9-10-17-7-5-6-8-19(17)20(16)14-24(30,25(27,28)29)15-23(2,3)21-13-18(26)11-12-22(21)31-4/h5-13,30H,14-15H2,1-4H3/t24-/m0/s1 43F7249F0BB1C410