4,4'-Difluoro-1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid 4,4'-Fbapta 85233-22-3 Glycine, N,N'-(1,2-ethanediylbis(oxy(4-fluoro-2,1-phenylene)))bis(N-(carboxymethyl)-