2-Chloro-1-cyclopentanone 2-Chlorocyclopentan-one 2-Chlorocyclopentanone 4-07-00-00012 (Beilstein Handbook Reference) 694-28-0 93474-01-2 BRN 1098899 CYCLOPENTANONE, 2-CHLORO- EINECS 211-769-9 NSC 60206 alpha-Chlorocyclopentanone