Synonyms: 2-Propenoic acid,3-(2,4-dichlorophenyl)-, (E)-;Cinnamic acid, 2,4-dichloro-, (E)- (8CI);(2E)-3-(2,4-dichlorophenyl)-2-propenoic acid;(E)-3-(2,4-Dichlorophenyl)-2-propenoic acid;(E)-3-(2,4-Dichlorophenyl)acrylicacid;NSC 52174;trans-2,4-Dichlorocinnamic acid;trans-3-(2,4-Dichlorophenyl)-2-propenoic acid;