4-(1-Piperidyl)-2,3-tetramethylenequinoline 4-22-00-04911 (Beilstein Handbook Reference) 5782-90-1 ACRIDINE, 1,2,3,4-TETRAHYDRO-9-PIPERIDINO- Acridine, 9-piperidino-1,2,3,4-tetrahydro- BRN 0233872 Piperidine, 1-(1,2,3,4-tetrahydro-9-acridinyl)-