1-(4-(Phenylamino)naphthyl)-1H-pyrrole-2,5-dione 1H-Pyrrole-2,5-dione, 1-(4-(phenylamino)-1-naphthalenyl)- 50539-45-2 EINECS 256-618-8 N-(1-anilinonaphthalyl)-4-maleimide