ethyl 2,4-dicyano-2-(2-cyanoethyl)butanoate

1,3,3,5-四甲酯

bis-(2-cyano-ethyl)-malonic acid monoamide

3-isopropenyl-pentane-1,3,5-tricarbonitrile

pentane-1,3,3,5-tetracarboxylic acid tetraethyl ester