1 YHX 4-nitroquinoline 1-oxide 1.000 2 QOX 1-oxo-1lambda~5~-quinoline 0.786 3 7VS (4e)-4-hydrazinylidene-1,4-dihydroquinoline 0.733 4 M1H ~{N}-methyl-5,6,7,8-tetrahydroquinolin-4-amine 0.733 5 UK5 1-oxidanylquinolin-4-one 0.733