3-(Phenylamino)-2-butenoicacidethylester, Crotonic acid,b-anilino-,ethyl ester, Ethyl-(phenylamino)crotonate, Ethyl-anilinocrotonate, 3-(Phenylamino)crotonsaeure-ethylester, ethyl 2-(phenylamino)crotonate, 3-Anilinicrotonsaeure-ethylester, 3-Phenylamino-but-2-enoic acid ethyl ester, ethyl 3-anilinocrotonate, ethyl 3-(phenyl)aminobut-2-enoate