Cuprate(2-), [[N,N′-1,2-ethanediylbis[N-[(carboxy-κO)methyl]glycinato-κN,κO]](4-)]-, diammonium (1:2), (OC-6-21)-
Ethylenediaminetetraacetic acid, diammonium copper salt
Ammonium copper(2+) 2,2',2'',2'''-(ethane-1,2-diyldinitrilo)tetraacetate (2/1/1)