1-Propanone, 1-(4-chlorophenyl)- 4'-Chloropropiophenone 4-Chloropropiophenone 6285-05-8 Ethyl p-chlorophenyl ketone NSC5600 Propiophenone, 4'-chloro- Propiophenone, p-chloro- Usaf ek-5296 WLN: GR DV2 p-Chloropropiophenone