Synonyms: Calciate(2-),[(ethylenedinitrilo)tetraacetato]-, calcium (8CI); Calciate(2-),[[N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycinato]](4-)-N,N',O,O',ON,ON']-,calcium (1:1), (OC-6-21)-; Calcium [(ethylenedinitrilo)tetraacetato]calciate(6CI); Acetic acid, (ethylenedinitrilo)tetra-, calcium salt (1:2); Acetic acid,(ethylenedinitrilo)tetra-, dicalcium salt; Dicalcium EDTA; Dicalciumethylenediaminetetraacetate; Ethylenediaminetetraacetic acid calcium salt