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A mix probe between synthesized (Z)-2,3-diphenylacrylonitrile and C1 fraction in TLC. C: Possible main active ingredient of C1 fraction. S, Synthesized (Z)-2,3-diphenylacrylonitrile; *, both the possible main active ingredient of C1 fraction and synthesized (Z)-2,3-diphenylacrylonitrile.
