4,4'-[1,4-phenylenebis(oxy)]bis(3-fluoroaniline) InChI=1/C18H14F2N2O2/c19-15-9-11(21)1-7-17(15)23-13-3-5-14(6-4-13)24-18-8-2-12(22)10-16(18)20/h1-10H,21-22H benzenamine, 4,4'-[1,4-phenylenebis(oxy)]bis[3-fluoro-