4'-Chloro-alpha-cyano-4-stilbenecarboxylic acid 4-09-00-03637 (Beilstein Handbook Reference) 4-Stilbenecarboxylic acid, 4'-chloro-alpha-cyano- 73928-05-9 BRN 3145540 Benzoic acid, 4-(2-(4-chlorophenyl)-1-cyanoethenyl)- (9CI) NSC 89111