Diethylene triamine penta(methylene phosphonic acid), 5Na Salt

Phosphonic acid, [[(phosphonomethyl)imino]bis[(2,1-ethanediylnirilo)bis(methylene)]]tetrakis-, sodium salt

pentasodium pentahydrogen [[(phosphonatomethyl)imino]bis[ethane-2,1-diylnitrilobis(methylene)]]tetrakisphosphonate