Synonyms: Phosphonic acid, P,P',P'',P'''-(1,2-ethanediylbis(nitrilobis(methylene)))tetrakis-, ammonium salt (1:8);Octaammonium (ethane-1,2-diylbis(nitrilobis(methylene)))tetrakisphosphonate;Phosphonic acid, (1,2-ethanediylbis(nitrilobis(methylene)))tetrakis-, octaammonium salt;octaammonium 8,8,8-trioxido-2,5-bis[(phosphonatooxy)methyl]-7-oxa-2,5-diaza-8lambda~5~-phosphaoct-1-yl phosphate