67969-67-9 Cobaltate(6-), (((1,2-ethanediylbis((nitrilo-kappaN)bis(methylene)))tetrakis(phosphonato-kappaO))(8-))-, pentasodium hydrogen, (OC-6-21)- EINECS 267-974-9 Pentasodium cobaltous ethylenedi(nitrilodi(methylenephosphonate)) Pentasodium hydrogen (((ethylenebis(nitrilobis(methylene)))tetrakis(phosphonato))(8-)-N,N',O,O'',O'''',O'''''')cobaltate(6-)