DescriptionCaffeicacid.svg Deutsch: Strukturformel von Kaffeesäure English: chemical structure of Caffeicacid Date 11 December 2006 Source Own work Author
Description3-(3,4-dihydroxyphenyl)-acrylic acid.svg Русский: Кофейная кислота Date 10 June 2013 Source Own work Author BattlePeasant Permission (Reusing