1,2-Bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid 1,2-Bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid 73630-08-7 85233-19-8 BAPTA Bapeta Ca(II)-bapta Glycine, N,N'-(1,2-ethanediylbis(oxy-2,1-phenylene))bis(N-(carboxymethyl)-,tetrapotassium salt Glycine, N,N'-(1,2-ethanediylbis(oxy-2,1-phenylene)bis(N-(carboxymethyl)-