The Collaborative International Dictionary of English v.0.48:

Quinaldine \Quin*al"dine\, n. [Quinoline + aldehyde + aniline.]
   (Chem.)
   A colorless liquid of a slightly pungent odor, C9H6N.CH3,
   first obtained as a condensation product of aldehyde and
   aniline, and regarded as a derivative of quinoline; -- called
   also methyl quinoline. [Written also chinaldine.]
   [1913 Webster]