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2-fluoro-4-hydroxybenzoic acid 4-bromo-3-fluoroanisole 4-ethoxyphenylacetylene 4-cyano-4-ethylbiphenyl 1-bromo-4-iodobenzene 4-ethoxycinnamic acid triphenyl amine derivatives 4-(4-n-pentylphenyl)benzoic acid 2-fluoro-4-hydroxybenzonitrile

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