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quinic acid

American  
[kwin-ik] / ˈkwɪn ɪk /

noun

Chemistry.
  1. a white, crystalline, water-soluble, solid cyclic compound, C 7 H 1 2 O 6 , present in cinchona bark, coffee beans, and the leaves of many plants.


quinic acid British  
/ ˈkwɪnɪk /

noun

  1. a white crystalline soluble optically active carboxylic acid, found in cinchona bark, bilberries, coffee beans, and the leaves of certain other plants; 1,3,4,5-tetrahydroxycyclohexanecarboxylic acid. Formula: C 6 H 7 (OH) 4 COOH

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of quinic acid

1805–15; < Spanish quin ( a ) quinine + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Another compound called quinic acid has been linked to lower systolic and diastolic blood pressure.

From Science Daily May 18, 2026

To prevent the formation of uric acid Robin prescribes quinic acid combined with formine or urotropine.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various

Hydroquinone was obtained by Caventou and Pelletier by heating quinic acid, but these chemists did not recognize its true nature.

From Coal and What We Get from It by Meldola, Raphael

In the case of hydroquinone, the original source, quinic acid, was obviously out of question, for economical reasons.

From Coal and What We Get from It by Meldola, Raphael

In 1838 Woskresensky, by oxidizing quinic acid with sulphuric acid and oxide of manganese, obtained a crystalline substance which he called quinoyl.

From Coal and What We Get from It by Meldola, Raphael

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