Pyrogallol tannin

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One of two general classes of vegetable tannins. The other class is catechol. Pyrogallol tannins contain Pyrogallic acid. Examples include chestnut, Oak bark, Myrobalan extract, and Divi-divi.

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 797

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