Synonyms: Calciate(2-),[(ethylenedinitrilo)tetraacetato]-, dihydrogen (8CI); Calciate(2-),[[N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycinato]](4-)-N,N',O,O',ON,ON']-,dihydrogen, (OC-6-21)-; Calciate(2-), [[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, dihydrogen, (OC-6-21)- (9CI);Ethylenediaminetetraacetic acid monocalcium salt; Glycine,N,N'-1,2-ethanediylbis[N-(carboxymethyl)-, calcium salt (1:1)