2,2',2'',2'''-(((Ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanetriyl))tetraacetic acid

for the following products 1,2-bis-(2-Aminophenoxy)ethane-N,N,N',N'-tetraacetic acid | BAPTA and 2,2',2'',2'''-(((Ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanetriyl))tetraacetic acid