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(2Z)-4-Oxo-4-[(phenylmethyl)amino]-2-butenoic acid15329-69-838 % similar 4-Nitrocinnamic acid619-89-638 % similar trans-4-Nitrocinnamic acid882-06-438 % similar 3-(3-Nitrophenyl)-2-propenoic acid555-68-038 % similar Urocanic acid104-98-338 % similar 3-(3,4,5-Trifluorophenyl)-2-propenoic acid152152-19-738 % similar (1E,4E)-1,5-Bis(2-methoxyphenyl)penta-1,4-dien-3-one39777-61-238 % similar 3,4-Dimethoxycinnamic acid14737-89-437 % similar 3-[4-(Acetyloxy)phenyl]-2-propenoic acid15486-19-837 % similar 3′,4′-Dimethoxycinnamic acid2316-26-937 % similar 4-Ethoxycinnamic acid2373-79-737 % similar 3′,4′-Methylenedioxycinnamic acid2373-80-037 % similar 3-[4-(Trifluoromethoxy)phenyl]acrylic acid783-13-137 % similar 2,6-Dibromobenzoic acid601-84-337 % similar 3-(Trifluoromethoxy)cinnamic acid168833-80-537 % similar 2-Bromophenylacetic acid18698-97-037 % similar 1,2-Naphthoquinone524-42-537 % similar Cis,cis-Muconic acid1119-72-837 % similar Muconic acid3588-17-837 % similar 3,5-Bis(trifluoromethyl)cinnamic acid155814-20-337 % similar