Definition of Catechin

1. Noun. A tannic acid that is extracted from black catechu as a white crystalline substance.

Generic synonyms: Tannic Acid, Tannin



Definition of Catechin

1. n. One of the tannic acids, extracted from catechu as a white, crystalline substance; -- called also catechuic acid, and catechuin.

Definition of Catechin

1. Noun. (organic compound) catechol ¹

¹ Source: wiktionary.com

Definition of Catechin

1. a chemical used in dyeing [n -S]

Medical Definition of Catechin

1. 3,3',4',5,7-flavanpentol. Extracted from uncaria gambier, acacia catechu and other plants; it stabilises collagen and is therefore used in tanning and dyeing; it prevents capillary fragility and abnormal permeability, but was formerly used as an antidiarrhoeal. Synonym: cachou; cashoo; cutch. Chemical name: 2H-1-Benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R-trans)- (12 Dec 1998)

Lexicographical Neighbors of Catechin

catchwork
catchy
catclaw
catclaws
catdom
cate
catechase
catecheses
catechesis
catechetic
catechetical
catechetical instruction
catechetically
catechetick
catechetics
catechin (current term)
catechine
catechines
catechinic acid
catechins
catechise
catechised
catechiser
catechisers
catechises
catechising
catechism
catechismal
catechisms
catechist

Literary usage of Catechin

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1912)
"Kostanecki and Lampo have assigned the following constituí ion to catechin : — OH /\ OH ОН ч ,— СН(ОН)— ч / -CH, and this is in harmony with many of the ..."

2. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1921)
"When catechin is treated with carbon tetra- chloride and aqueous potassium hydroxide, it yields catechin carboxylic acid, colourless needles, ..."

3. Hand-book of Chemistry by Leopold Gmelin, Henry Watts (1858)
"The catechin which separates from an aqueous solution of ... [According to Neubauer, catechin is not formed by oxidation of ..."

4. Elements of Chemistry: Theoretical and Practical by William Allen Miller (1862)
"catechin precipitates perchloride of iron of a dark green colour. It is soluble in the dilute acids : when treated with oil of vitriol it gives a purple ..."

5. An Introduction to the Chemistry of Plant Products by Paul Haas, Thomas George Hill (1917)
"catechin. This substance, which is obtained from Acacia catechu, ... catechin may be prepared by extracting powdered catechu with ether; the crude material ..."

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