23693-49-4 516-03-0 70763-81-4 EINECS 208-217-4 Ethanedioic acid, iron(2+) salt (1:1) FERROUS OXALATE Ferrox HSDB 463 Iron oxalate (FeC2O4) Iron protoxalate Iron(2+) oxalate Iron(II) oxalate Iron, (ethanedioato(2-)-kappaO1,kappaO2)- Oxalic acid, iron(2+) salt (1:1)