4'-Phenylacetophenone 4-Acetylbiphenyl 4-Biphenylyl methyl ketone 4-Phenylacetophenone 92-91-1 Acetophenone, 4'-phenyl- Biphenyl-4-acetophenone Ethanone, 1-[1,1'-biphenyl]-4-yl- Ketone, 4-biphenylyl methyl NSC1875 p-Acetylbiphenyl p-Phenylacetophenone