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 (kwĭn′ə-lēn′, -lĭn)
An aromatic organic base, C9H7N, having a pungent tarlike odor, synthesized or obtained from coal tar, and used as a food preservative and in making antiseptics, drugs, and dyes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkwɪnəˌliːn; -lɪn)
1. (Elements & Compounds) 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
2. (Elements & Compounds) any substituted derivative of quinoline
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkwɪn lˌin, -ɪn)

a colorless liquid nitrogenous base, C9H7N, having a disagreeable odor, occurring in coal tar: used as a solvent and reagent and to make dyes.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Interaction of quinoline antimalarial drugs with ferriprotoporphyrin IX, a solid state spectroscopy study.
Bioaugmentation and adsorption treatment of coking wastewater containing pyridine and quinoline using zeolite-biological aerated filters.
(5) Consumption of the food colorings sunset yellow FCF, quinoline yellow, carmoisine, allura red, tartrazine, and ponceau aggravates attention deficit hyperactivity disorder (ADHD).
On the one hand, the nitrogen and oxygen compounds in shale oil, such as quinoline, aniline, phenol and dimethylphenol, are important raw materials and useful intermediates in industry [3-6].
Quinoline containing azomethine imine 3 possesses low-intensity fluorescence at 411 nm, while 8-hydroxyquinoline derivative 4 demonstrates more intense emission with a larger Stokes shift at 514 nm ([phi] = (03) (Table 1).
Ross, "New quinoline alkaloids from Ruta chalepensis," Journal of Natural Products, vol.
Quinoline derivatives, which widely occur in nature, especially alkaloids, have become an important skeleton in synthetic chemistry due to their variety of applications in medicinal, bioorganic, and industrial chemistry.
Quinoline derivatives have gained a lot of attention due to their photoluminescence and electroluminescence properties.
Biochemical studies on the plant methanolic, hexane and aqueous extracts show the presence of the quinoline alkaloid lunacridine to be effective against tropical ulcers [16], antitubercular [14] and antibacterial activity [17,18], graveolinine, 4-methoxy-2-phenylquinoline and kokusagine for antituberculosis activity [19], lunacridine and its trifluoroacetyl derivative for DNA intercalation, topoisomerase II decatenation, cytotoxicity and caspase activation activities [16] and Cytochrome P450 2D6 inhibitory effect [20].
Antigens on the TT but not on the NACDG series include thimerosal, gold, and quinoline mix.
In vitro activity of Bay 09867, a new quinoline derivative, compared with those of other antimicrobial agents.
The significance of the quinoline ring at quinoline-based antimalarial drugs has prompted research centers and pharmaceutical companies to focus on the design and synthesis of new analogues of these drugs, especially CQ and AQ analogues.