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Name: Tannic Acid

Alias: Tannins

CAS No: 1401-55-4

Molecular Formula： C76H52O46

Molecular Weight：1701.18

Structural formula：

Appearance：Light brown irregular powder

Storage : Moisture-proof and avoid light, sealed storage.

Package: 25kgs/bag or drum

Capacity: 4500MT/year

Spec:78%, 81%, 83%, 96%

Usage:

Industrial

It is used in the manufacture of blue black ink, metal anti-rust, oil drilling mud treatment and mineral inhibitor, metal germanium extraction.
(2) It usually used as leather tanning agent, mordant, color fixing agent, protein agent and alkaloid precipitant in textile printing and dyeing field.

(3) It is as an initial raw material for the production of ellagic acid, gallic acid, gallic esters series products, pyrogallic acid and other gallic acid series products in fine chemical industry.

2. Medicine

(1) It is the raw material for the production of gallic acid, pyrogallol and sulfonamide drugs.

(2) It can be used in drugs of treating cold sores, fever blisters, sore throat, sore tonsils and receding gums.

(3) It is clinically used in the treatment drugs of local bleeding, such as toothpaste, gingival bleeding, chronic diarrhea, dysentery, hematuria, etc.

(4) Tannin is usually used in ointments and suppositories to treat hemorrhoids.

3. Cosmetics

Tannin is one of the ingredients which widely used in the cosmetics.

4. Food

(1) It mainly used as a clarifying agent for beer, wine and low alcohol. Tannic acid used in beer absorbs alkaline polymers and hydrophobic sensitive proteins, reduces aldehydes, enhances antioxidant capacity, improves abiotic stability and flavor stability.

(2) It can be used in bromelain food processing.

(3) Tannins can be used as preservative and antioxidants in fruits and vegetables.

5. Feed 
(1) Tannic acid has obvious inhibitory effect on a variety of bacteria, fungi and yeast. It can inhibit the growth of harmful microorganisms.

(2) Tannic acid has a strong inhibitory effect on parasites and their ability to lay eggs. It can inhibiting gastrointestinal parasites.

(3) Antioxidant & free radical scavenging: Tannic acid containing o-phenol hydroxyl group is an excellent hydrogen donor with great significant scavenging effect on super-oxide anion radical, hydroxyl radical and other oxygen free radicals. It can make many biological macromolecules in the body such as protein, DNA, lipids from free radical attack to protect the body tissue.
(4) Antiviral: Tannic acid can effectively inhibit H7N1, H5N2, bursal disease virus, avian infectious bronchitis, visceral Newcastle disease virus, infectious laryngotracheitis virus. It is also one of the effective components which infectious bronchitis and laryngotracheitis virus.