Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. 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 and dyes.
Century Dictionary and Cyclopedia
- n. Same as chinoline.
Wiktionary
- n. organic chemistry Any of a class of aromatic heterocyclic compounds containing a benzene ring fused with a pyridine ring; especially the simplest such compound, C9H7N.
GNU Webster's 1913
- n. (Chem.) A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type.
Examples
“quinoline" were produced, at about half the price of quinine.”
“The additives assessed in the study included sodium benzoate, sunset yellow, carmoisine, ponceau 4R, tartrazine, quinoline yellow and allura red.”
“Those colors are Yellow No. 5 (tartrazine), Yellow No. 10 (quinoline yellow, not approved in the U.S.)”
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“The leather note isobutyl quinoline sp? is practically the same.”
“Like quinine, chloroquine is a rather small molecule not a big, “macro” molecule and has a core structure called a “quinoline.””
“This is not exactly the case with the higher groups of alkaloids -- the derivatives of pyridine and quinoline.”
“(C_ {5} H_ {6} N) and quinoline (C_ {9} H_ {7} N) are liquids present in small amounts in coal tar, and also in the liquid obtained by the distillation of bones.”
“Thus Prof. Filehne found that hydrochlorate of tetrahydroquinoline was much more energetic in its action than quinoline, but could not be used on account of a too powerful local effect.”
“The second series is the quinoline series, including _quinoline_,”
“When distilled with potassium hydrate, quinoline is formed.”
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