亚洲网紅露点

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quinic acid

[ kwin-ik ]

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

/ 藞办飞瑟苍瑟办 /

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
鈥淐ollins English Dictionary 鈥 Complete & Unabridged鈥 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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亚洲网紅露点 History and Origins

Origin of quinic acid1

1805鈥15; < Spanish quin ( a ) quinine + -ic
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Example Sentences

Examples have not been reviewed.

Quinic acid, which is present in cranberries, is metabolized by the body into hippuric acid, a substance that in very high concentrations is toxic to聽E. coli, the pathogen most commonly to blame for U.T.I.s.

From

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

From

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

From

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

From

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

From

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quinhydronequinidine