1-Phenyl-3-butanone 2-Butanone, 4-phenyl- 2550-26-7 4-07-00-00713 (Beilstein Handbook Reference) 4-Phenylbutan-2-one AI3-15123 BENZYLACETONE BRN 1907123 EINECS 219-847-4 Methyl 2-phenylethyl ketone Methyl phenethyl ketone Methyl phenylethyl ketone NSC 44829 NSC 813 Phenethyl methyl ketone beta-Phenylethyl methyl ketone