Synonyms: Ferrate(2-),[[N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycinato]](4-)-N,N',O,O',ON,ON']hydroxy-,diammonium, (PB-7-11'-121'3'3)-; Ferrate(2-),[[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]hydroxy-, diammonium, (PB-7-11'-121'3'3)- (9CI)