Gallic Acid

Synonyms: 3,4,5-Trihydroxybenzoic acid, monohydrate; gallic acid, monohydrate
CAS No.: 149-91-7 (Anhydrous) 5995-86-8 (Monohydrate)
Molecular Weight: 188.14
Chemical Formula: C6H2(OH)3COOH.(H2O)

Description: White or pale colored crystalline powder; Soluble in acetone, ethyl acetate, 6 parts of alcohol, 2 parts of boiling water,slightly soluble in cold water but insoluble not in benzene or chloroform. Can react with ferricchloride and then appear blue-black colour.

Gallic acid is obtained by the hydrolysis of tannic acid with sulfuric acid or enzyme. When heated above 220 C, gallic acid loses carbon dioxide to form pyrogallol, or 1,2,3-trihydroxybenzene, C 6 H 3 (OH) 3 , which is used in the production of azo dyes and photographic developers and in laboratories for absorbing oxygen.

Gallochem Gallic acid can be used in:


Pharmaceuticals industry (such as in the

synthesis of Trimethoprim);

Making antioxidants used in food and

feed industries, and ink dyes,

and in photography, paper manufacture .





Gallochem Gallic acid products.



l Gallic acid grade I: Main sell to India and Peru (Kosher approval)

l Gallic acid grade II

l Gallic acid grade III: Specially to Japan

l High purity grade



Package: 25kg woven plastic bags or fiber drums with plastic bag liners.

Storage: should be kept in a well-closed container.