2'-Benzonaphthone 2-Benzonaphthone 2-Benzoylnaphthalene 2-Naphthyl phenyl ketone 644-13-3 EINECS 211-410-6 Ketone, 2-naphthyl phenyl Methanone, 2-naphthalenylphenyl- NSC 5190 beta-Benzoylnaphthalene