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trans-2-Methoxycinnamic acid1011-54-734 % similar Ethyl (2E)-4-oxo-4-phenyl-2-butenoate15121-89-834 % similar (2Z)-4-Oxo-4-[(phenylmethyl)amino]-2-butenoic acid15329-69-834 % similar Ethyl (2E)-4-oxo-4-phenyl-2-butenoate17450-56-534 % similar Ethyl 3-(4-methylphenyl)-2-propenoate20511-20-034 % similar 4-[(4-Fluorophenyl)amino]-4-oxo-2-butenoic acid60252-79-134 % similar 2-Methoxycinnamic acid6099-03-234 % similar 4-Nitrocinnamic acid619-89-634 % similar trans-4-Nitrocinnamic acid882-06-434 % similar 4′-Methoxychalcone959-23-934 % similar 4-Methyl-2-pentenoic acid10321-71-833 % similar P-Cymenene1195-32-033 % similar trans-2-Pentenoic acid13991-37-233 % similar 3,4-Dimethoxycinnamic acid14737-89-433 % similar 4-Methylbenzamidoxime19227-13-533 % similar 4-Hydroxychalcone20426-12-433 % similar (2E)-3-(3-Fluorophenyl)-2-propenoic acid20595-30-633 % similar 3′,4′-Dimethoxycinnamic acid2316-26-933 % similar Caffeic acid331-39-533 % similar 3-(2,3,4-Trimethoxyphenyl)-2-propenoic acid33130-03-933 % similar