InChI=1/C20H20Cl2F4O2/c1-18(2,15-9-14(23)5-7-17(15)28-3)11-19(27,20(24,25)26)10-12-8-13(21)4-6-16(12)22/h4-9,27H,10-11H2,1-3H3/t19-/m0/s1 0853588FADAA4220