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3-(2-Thienyl)acrylic acid15690-25-231 % similar 4-(2-Carboxyethenyl)benzoic acid19675-63-931 % similar 2,4,5-Trifluorocinnamic acid247170-17-831 % similar 3-Furanacrylic acid39244-10-531 % similar o-Coumaric acid583-17-531 % similar O-Coumaric acid614-60-831 % similar Traumatic acid6402-36-431 % similar 2-Bromocinnamic acid7345-79-131 % similar 3-(2-Bromophenyl)-2-propenoic acid7499-56-131 % similar Acrylic acid-maleic anhydride copolymer26677-99-631 % similar Urocanic acid104-98-331 % similar 3-(3,4,5-Trifluorophenyl)-2-propenoic acid152152-19-731 % similar 4-(Carboxyvin-2-yl)phenylboronic acid159896-15-831 % similar 4-(1-Piperidinyl)-2-(E)-butenoicacid hydrochloride197892-69-631 % similar (2E)-3-(3-Fluorophenyl)-2-propenoic acid20595-30-631 % similar 2-Methylcinnamic acid2373-76-431 % similar Caffeic acid331-39-531 % similar 2-Chlorocinnamic acid3752-25-831 % similar 3-(2-Fluorophenyl)-2-propenoic acid451-69-431 % similar 3-(3-Fluorophenyl)-2-propenoic acid458-46-831 % similar