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4-Bromocrotonic acid13991-36-134 % similar trans-2-Pentenoic acid13991-37-234 % similar (2E)-4-(4-Methylphenyl)-4-oxobut-2-enoic acid20972-36-534 % similar (2E)-4-(4-Chlorophenyl)-4-oxo-2-butenoic acid6269-33-634 % similar Indole-3-acrylic acid1204-06-434 % similar 3,4-Dimethoxycinnamic acid14737-89-434 % similar 3-[4-(Acetyloxy)phenyl]-2-propenoic acid15486-19-834 % similar 3-(2-Carboxyvinyl)benzeneboronic acid216144-91-134 % similar 3,5-Di-tert-butyl-4-hydroxycinnamic acid22014-01-334 % similar 3′,4′-Dimethoxycinnamic acid2316-26-934 % similar 4-Ethoxycinnamic acid2373-79-734 % similar 3′,4′-Methylenedioxycinnamic acid2373-80-034 % similar 3-Indoleacrylic acid29953-71-734 % similar 3-(2,3,4-Trimethoxyphenyl)-2-propenoic acid33130-03-934 % similar Sinapinic acid530-59-634 % similar 4-Acetamidocinnamic acid7152-04-734 % similar 3-(Trifluoromethoxy)cinnamic acid168833-80-534 % similar Glutaconic acid1724-02-333 % similar 3-Methoxycinnamic acid17570-26-233 % similar 3-Methoxycinnamic acid6099-04-333 % similar