1H,5H-Benzo(ij)quinolizine-9-carboxaldehyde, 2,3,6,7-tetrahydro- 2,3,6,7-Tetrahydro-1H,5H-benzo(ij)quinolizine-9-carboxaldehyde 33985-71-6 5-21-08-00386 (Beilstein Handbook Reference) 9-Julolidine carboxaldehyde BRN 0178538 NSC 159999