catechin(redirected from catechinic acid)
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A derivative of catechu and used as an astringent in diarrhea and as a stain.
catechin/cat·e·chin/ (kat´ĕ-kin) an astringent principle from the heartwood of Acacia catechu (catechu) and Uncaria gambier (gambir).
1. A flavonoid, C15H14O6, originally derived from catechu, found in various foods such as green tea, cacao, and many fruits, and used in tanning and dyeing.
2. Any of various isomers or derivatives of this compound. In both senses also called catechol.