11H-CYCLOHEPTA(b)QUINOLIN-11-ONE, 5,6,7,8,9,10-HEXAHYDRO- 5,6,7,8,9,10-Hexahydro-11H-cyclohepta(b)quinolin-11-one 5-21-08-00522 (Beilstein Handbook Reference) 5220-39-3 7,8,9,10-Tetrahydro-6H-cyclohepta(b)quinolin-11-one BRN 1529222