55448-20-9 Dihydrogen ((N,N'-ethylenebis(N-(carboxymethyl)glycinato))(4-)-N,N',O,O',ON,ON')manganate(2-) EINECS 259-645-3 Manganate(2-), ((N,N'-1,2-ethanediylbis(N-(carboxymethyl)glycinato))(4-)-N,N',O,O',O(sup N), O(sup N'))-, dihydrogen (OC-6-21)- Manganese edta complex