Synonyms: Magnesate(2-),[[N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycinato]](4-)-N,N',O,O',ON,ON']-,dipotassium, (OC-6-21)-; Magnesate(2-), [[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, dipotassium, (OC-6-21)- (9CI); Potassium[(ethylenedinitrilo)tetraacetato]magnesate (6CI,7CI); NSC 310175