5964-35-2 Acetic acid, (ethylenedinitrilo)tetra-, tetrapotassium salt (8CI) EDTA tetrapotassium salt EINECS 227-743-5 Glycine, N,N'-1,2-ethanediylbis(N-(carboxymethyl)-, tetrapotassium salt Tetrapotassium EDTA Tetrapotassium ethylenediaminetetraacetate