Synonyms: Cinnamicacid, 3,4-dihydroxy-, ethyl ester (6CI,7CI,8CI);Caffeic acid ethyl ester;Ethyl 3,4-dihydroxycinnamate;Ethyl caffeoate;2-Propenoic acid, 3-(3,4-dihydroxyphenyl)-, ethyl ester;2-propenoic acid, 3-(3,4-dihydroxyphenyl)-, ethyl ester, (2E)-;