Tannic acid, identified by CAS number 1401-55-4, is a complex natural polyphenol whose chemical structure and properties underpin its wide-ranging applications. As a key component of tannins found in various plant materials, understanding its science is crucial for leveraging its full potential. NINGBO INNO PHARMCHEM CO.,LTD. is at the forefront of providing high-quality tannic acid, backed by a deep understanding of its chemical characteristics.

Tannic acid is characterized by its numerous phenol groups, which contribute to its weak acidity (pKa around 6) and its ability to form complexes with proteins and other molecules. Commercial tannic acid is typically a mixture of polygalloyl glucoses or polygalloyl quinic acid esters, with its exact composition varying based on the plant source, such as tara pods or gallnuts. Its appearance is generally a yellow to light brown amorphous powder, with a purity often exceeding 92% for food and pharmaceutical grades. As a supplier in China, we ensure these specifications are met for consistent product performance.

The chemical functions of tannic acid are diverse. Its protein-binding capability is central to its use in tanning leather and clarifying beverages. In food applications, its antioxidant properties help prevent oxidation, while its astringency influences taste and mouthfeel. In pharmaceuticals, these same properties contribute to its efficacy in topical treatments. The molecule's structure allows it to interact with biological systems and industrial materials in predictable ways, making it a valuable chemical intermediate and additive.

For businesses looking to buy tannic acid, understanding these scientific underpinnings is key to selecting the right grade and application. NINGBO INNO PHARMCHEM CO.,LTD. offers comprehensive technical data and supports customers in utilizing the unique chemical functions of tannic acid. As a leading manufacturer in China, we are committed to providing scientifically sound and high-purity tannic acid to meet the evolving needs of the chemical industry.