InChI=1/C8H6F4N2O2/c9-5-1-4(2-14-3-5)7(13,6(15)16)8(10,11)12/h1-3H,13H2,(H,15,16)/p-1/t7-/m1/s1/fC8H5F4N2O2/q-1 9B5E5CFFC24FF5C2