diethylenetriamine penta(methylene phosphonic acid) heptasaodium salt; heptasodium trihydrogen [[bis[2-[bis(phosphonatomethyl)amino]ethyl]amino]methyl]phosphonate; Phosphonic acid, (phosphonomethyl)iminobis2,1-ethanediylnitrilobis(methylene)tetrakis-, heptasodium salt; DTPMPA.NA7; Diethylenetriaminepenta-(methylenephosphonic acid) heptasodium salt; SODIUM SALT OF DIETHYLENE TRIAMINE PENTA (METHYLENE PHOSPHONIC ACID);heptasodium; Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) CAS NO:68155-78-2