Quinic acid

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Structural formula
Structural formula of quinic acid
D - (-) - quinic acid
General
Surname D -quinic acid
other names
  • 1 α , 3 α , 4 α , 5 β -tetrahydroxycyclohexane carboxylic acid
  • D - (-) - quinic acid
  • (-) - quinic acid
  • D -quinic acid
  • (1 R ) - (-) - quinic acid
Molecular formula C 7 H 12 O 6
Brief description

white, crystalline powder with a sour taste

External identifiers / databases
CAS number
  • 77-95-2 [ D - (-) - quinic acid]
  • 36413-60-2 [(±) -quinic acid]
EC number 201-072-8
ECHA InfoCard 100,000,976
PubChem 6508
ChemSpider 10246715
Wikidata Q424931
properties
Molar mass 192.17 g mol −1
Physical state

firmly

density

1.64 g cm −3 (20 ° C)

Melting point

165 ° C

solubility

290 g l −1 in water (at 9 ° C)

safety instructions
GHS labeling of hazardous substances
05 - Corrosive

danger

H and P phrases H: 314
P: 280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Quinic acid is a hydroxycarboxylic acid . It can be found in many fruits, for example in star anise .

Cinchona bark

Quinic acid was first isolated from the cinchona bark in 1790 by the pharmacist Friedrich Christian Hofmann in Leer (East Friesland) . Its ester with caffeic acid , in which quinic acid functions as an alcoholic component, is found as chlorogenic acid in coffee .

Quinic acid is an intermediate product of the shikimic acid pathway .

Web links

Wiktionary: Quinic acid  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  1. ↑ a b c d Data sheet D - (-) - Quinic acid from Sigma-Aldrich , accessed on October 22, 2016 ( PDF ).
  2. ↑ a b Entry on quinic acid. In: Römpp Online . Georg Thieme Verlag, accessed on August 18, 2011.
  3. ↑ a b Data sheet quinic acid (PDF) from Merck , accessed on January 19, 2011.
  4. ^ Hofmann: Crell's chemical annal. 1790 , II, p. 314, quoted in S. Baup: About quinic acid and some of its compounds . In: Annalen der Physik und Chemie 1833 , pp. 64–70 ( limited preview in Google book search).