40820-17-5 Copper, ((4,4'-(1,2-ethanediyldinitrilo)bis(1,1,1-trifluoro-2-pentanonato))(2-)-N,N',O,O')-, (SP-4-2)- N,N'-Ethylene bis(trifluoroacetylacetoiminato)copper(II) NSC 18485