63427-32-7 Bis(ethylenediamine-N,N')copper tetrakis(cyano-C)nickelate Copper ethylenediamine nickel cyanide Copper(2+), bis(1,2-ethanediamine-kappaN,kappaN')-, (SP-4-1)-tetrakis(cyano-kappaC)nickelate(2-) (1:1) EINECS 264-136-4