Description General description 4-Biphenylacetonitrile on condensation reaction with ethyl phenyl propiolate yields biphenyl derivatives of acetylenic β-ketocyanide. Application 4-Biphenylacetonitrile was used to study the adsorption orientation of the biphenyl derivatives on the Au colloidal surfaces with α-cyclodextrins. Packaging 1, 5 g in glass bottle