Quinaldine n. : 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.

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Taxonomy
Quinaldine, methylquinoline, free encyclopedia, search, Identifiers, c1, 6-7, 4-2, 2-3-5, h2, g/mol, Appearance, liquid, cm3, Hazards, aniline, anaesthetic, derivative.

Defination from the web:
Quinaldine or 2-methylquinoline is a simple derivative of a heterocyclic compound quinoline. ... Quinaldine sulphate, a new anaesthetic formulation for tropical marine fishes". Journal of Fish Biology 10 (2): 113–119(7) ...