Tannic Acid

Short Description:

Product name: Tannic acid

Chemical name: 1,2,3,4,6-penta-O-{3,4-dihydroxy-5-[(3,4,5-trihydroxybenzoyl)oxy]benzoyl}-D-glucopyranose

Other names: Acidum tannicum, Gallotannic acid, Digallic acid, Gallotannin, Tannimum, Quercitannin, Oak bark tannin, Quercotannic acid, Querci-tannic acid, Querco-tannic acid

Product Detail

Product Tags

Product name: Tannic acid

Chemical name: 1,2,3,4,6-penta-O-{3,4-dihydroxy-5-[(3,4,5-trihydroxybenzoyl)oxy]benzoyl}-D-glucopyranose

Molecular formula: C76H52O46

Molecular weight: 1701.19

Melting point: Decomposes above 200°C

CAS: 1401-55-4



(1) This product is widely used in extraction, acid iron ink manufacturing, metal rust prevention, mud conditioner for petroleum drilling, and raw material for pharmaceutical industry.

(2) Textile printing solid used to produce leather tanning agent, mordant, rubber coagulant, protein agent, alkaloid precipitant.

(3) Pharmaceutical products, such as raw materials for sulfa synergists (TMP).

(4) Chemicals for preparing medicinal acid, pyrogallic acid and sulfa drugs, as well as Gallic Acid and Pyrogallol.



Industrial grade

Implementation standards




Drying loss


Water insoluble matter





Kraft paper bag, 25kg/bag

Production scale



   Leshan Sanjiang Bio-Tech Co., Ltd. is a tech firm founded by Xu Zhongyun, a world-renowned forestry scientist and Chief Researcher of the Southern Research Institute of the USDA Forest Service. The company was incorporated in the Leshan National High-tech Industrial Development Zone in 2003. Made from China's forestry specialties--Galla Chinensis and natural product Tara sourced from Peru, our products include pharmaceutical intermediates, electronic chemicals, food additives, etc.

   Sanjiang research team has taken in charge of many major state or ministerial level projects, we have attained scientific and technological achievements and patents, Sanjiang keeps deepening cooperation with Chinese Academy of Forestry, Nanjing Forestry University and Northeast Forestry University among other institutions of higher education in deep processing of forestry products.

   Sanjiang has set up a strict quality control system,monitoring all process in production. Our laboratory has been equipped with a HPLC and corresponding analysis instruments.

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