"(2E)-3-(3,4-Dihydroxyphenyl)prop-2-enoic acid" . . . "Caffeoyl" . . . . "Caffeic acid" . . . . "trans-Caffeate" . "caffeic" . . . "caffeoyl group" . . "caffeic acid" . "(E)-3-(3,4-dihydroxyphenyl)-2-propenoic acid" . "3-(3,4-Dihydroxyphenyl)-2-propenoic acid" . . . . "Caffeic acid" . "caffeoyl" . . "3,4-Dihydroxy-trans-cinnamate" . . . . "3,4-Dihydroxycinnamic acid" . . "3,4-Dihydroxybenzeneacrylicacid" . . . . . .