Catechin
a water-soluble, astringent yellow compound, C 15 H 14 O 6 , found in gambier, used chiefly in tanning and dyeing.
Contemporary Examples
Apples contain an anti-inflammatory flavonoid called quercetin, while red wine contains the flavonoid catechin.
10 Power Food Combos Divya Gugnani March 17, 2010
Historical Examples
It contains 60 % of tanning matter and a large proportion of catechin similar to that contained in gambier, but much redder.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 3 Various
It contains two coloring principles, catechin and catechu-tannic acid.
Principles and Practice of Fur Dressing and Fur Dyeing William E. Austin
It contains a crystallisable principle (margosine) and an astringent principle (catechin).
Cooley’s Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades…, Sixth Edition, Volume I Arnold Cooley
Catechu tannin and catechin are compounds of the catechol tannin type.
The Chemistry of Plant Life Roscoe Wilfred Thatcher
noun
a soluble yellow solid substance found in catechu and mahogany wood and used in tanning and dyeing. Formula: C15H14O6
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