Synonyms: (alphaR)-alpha-[[(2E)-3-(3,4-Dihydroxyphenyl)-1-oxo-2-propen-1-yl]oxy]-3,4-dihydroxy-benzenepropanoic acid ethyl ester; Rosmarinic acid ethyl ester; [R-(E)]-alpha-[[3-(3,4-dihydroxyphenyl)-1-oxo-2-propenyl]oxy]-3,4-dihydroxy-benzenepropanoic acid ethyl ester Molecular Formula: …