Tannic Acid: Hydrolyzable Polyphenol from Gallnut and Bark Sources
Tannic acid is a high-molecular-weight polyphenol belonging to the hydrolyzable tannin class, composed of a central glucose core esterified with gallic acid units. It is primarily extracted from the gallnuts of Rhus species and the bark of oak and chestnut trees. Tannic acid is valued for its strong astringent, antioxidant, and protein-binding properties, which give it a broad range of applications across pharmaceutical, food, and technical industries.
Product Profile
| CAS Number | 1401-55-4 |
|---|---|
| Source | Gallnuts (Rhus spp.), oak bark, chestnut bark |
| Active Component | Tannic acid (polygalloyl glucose esters) |
| Appearance | Yellowish-brown to light brown amorphous powder |
Applications
In pharmaceutical formulations, tannic acid serves as an astringent in topical preparations for minor burns, skin irritation, and hemorrhoid treatments. The food industry uses it as a clarifying agent in beer and wine production, where its protein-precipitating ability removes haze-forming compounds. It is also employed as a natural food-grade antioxidant. In cosmetics, tannic acid is incorporated into pore-minimizing and mattifying formulations. Industrial applications include leather tanning, ink production, and use as a corrosion inhibitor.
Why Source from TCS
TCS supplies tannic acid to pharmaceutical, food-grade, and industrial buyers worldwide. Multiple standardization levels available. Contact us with your specifications and volume requirements.
FAQ
What information should be included in an inquiry for Tannic Acid 1401-55-4?
A useful inquiry normally includes the product name, target application, estimated quantity, destination market, and any specific documentation or packaging requests.
How is Tannic Acid 1401-55-4 usually evaluated for sourcing?
This product is positioned for plant extract sourcing where the intended use, formulation context, market destination, and purchasing schedule should be clarified before commercial confirmation.
What documentation and commercial points are commonly reviewed before buying Tannic Acid 1401-55-4?
For plant extract procurement, buyers commonly confirm product identity, intended application, order quantity, packaging preferences, and the documentation expected for import, evaluation, or routine supply.
Request a Quote
If your team already has a target application, estimated quantity, destination market, or documentation requirements, send those details so the commercial response can be prepared more efficiently.