2-propenoic acid, 3-[4-(2-phenylethenyl)phenyl]-, ethyl ester InChI=1/C19H18O2/c1-2-21-19(20)15-14-18-12-10-17(11-13-18)9-8-16-6-4-3-5-7-16/h3-15H,2H2,1H3/b9-8+,15-14 ethyl 3-[4-(2-phenylvinyl)phenyl]acrylate