Synonyms: N-Carboxymethyliminobis(ethylenenitrilo)tetra(acetic acid), Kestranal® Aza Pa, DTPA, Titriplex® V, Idranal V, Diethylenetriaminepentaacetic acid, 2,2',2'',2'''-((((Carboxymethyl)azanediyl)bis(ethane-2,1-diyl))bis(azanetriyl))tetraacetic acid, Diethylenetriamine-N,N,N',N'',N''-pentaacetic acid