Applications N-Phenyl Maleimide is used as a cross-linking agent and as a reactant in various organic synthesis reactions, particularly in the production of polymers and specialty chemicals. Description Description. N-Phenylmaleimide is used as a dipolarophile in 1,3-cycloaddition reaction with a nitrone, useful for the preparation of crystalline adducts of dienes. It is used as a plastic modifier. This Thermo Scientific…