1-Propanone, 1-(4-chlorophenyl)- 4'-Chloropropiophenone 4-07-00-00683 (Beilstein Handbook Reference) 6285-05-8 AI3-23870 BRN 1100638 EINECS 228-511-6 Ethyl p-chlorophenyl ketone NSC 5600 PROPIOPHENONE, 4'-CHLORO- Propiophenone, p-chloro- USAF EK-5296 p-Chloropropiophenone