2'-Chloroacetophenone 2142-68-9 4-07-00-00638 (Beilstein Handbook Reference) AI3-15920 Acetophenone, 2'-chloro- BRN 1858916 EINECS 218-397-6 Ethanone, 1-(2-chlorophenyl)- NSC 405474 o-Chloroacetophenone o-Chloroacetophonone