19976-14-8 53109-53-8 CCRIS 5293 Copper pyruvaldehyde bis(N(4)-methylthiosemicarbazone) complex Copper, ((2,2'-(1-methyl-1,2-ethanediylidene)bis(N-methylhydrazinecarbothioamidato))(2-)-N2,N2',S,S')-, (SP-4-4)- Copper, ((pyruvaldehyde bis(4-methyl-3-thiosemicarbazonato))(2-))- Pyruvaldehyde bis(N4-methylthiosemicarbazone) copper complex