2H-1-Benzopyran-2-one, 3-chloro-4-(1-piperidinyl)- (9CI) 3-Chloro-4-piperidinocoumarin 36048-07-4 4-20-00-01309 (Beilstein Handbook Reference) BRN 0241273 COUMARIN, 3-CHLORO-4-PIPERIDINO- NSC 203310