a colorless, liquid, water-immiscible, nitrogenous base, C 9 H 7 N, having a disagreeable odor, occurring in coal tar, and usually prepared by oxidizing a mixture of glycerol and aniline: used as a solvent and reagent and to make dyes.
an oily colourless insoluble basic heterocyclic compound synthesized by heating aniline, nitrobenzene, glycerol, and sulphuric acid: used as a food preservative and in the manufacture of dyes and antiseptics. Formula: C9H7N
(kwĭn'ə-lēn', -lĭn) An aromatic organic liquid having a pungent, tarlike odor. Quinoline is a base and is obtained from coal tar or is synthesized. It is used as a food preservative and in making antiseptics and dyes. Chemical formula:C9H7N.