Tannic Acid CAS 1401-55-4 Bulk Supplier | High-Purity Gallotannin

Tannic Acid (CAS 1401-55-4) is a naturally occurring gallotannin widely used across nutraceutical, food, cosmetic, leather, and industrial applications. Supplied as a light brown fine powder with ≥98.0% assay (HPLC), it is valued for its polyphenolic structure, strong binding capacity, and versatile formulation properties.

Product Description

Tannic Acid is a high-purity hydrolysable tannin known for its ability to interact with proteins, metals, and polymer surfaces, making it suitable for a broad range of technical and natural product applications. Each batch is tested for assay, ash, moisture, solvent residues, heavy metals, and elemental impurities, ensuring a clean and reproducible ingredient profile. Its fine powder texture and defined analytical parameters support efficient incorporation into diverse formulation systems.

Technical Properties

• CAS Number: 1401-55-4
• Molecular Formula: C₇₆H₅₂O₄₆
• Molecular Weight: 1701.19 g/mol
• Appearance: Fine powder
• Color: Light brown
• Assay: ≥ 98.0% (HPLC)
• Sulfated Ash: ≤ 1.0%
• Loss on Drying: ≤ 9.0%
• Solvent Residues (ethyl acetate): ≤ 25 ppm
• Heavy Metals: ≤ 10 ppm
• Lead: ≤ 2 ppm
• Arsenic: ≤ 1 ppm
• Mercury: ≤ 0.1 ppm
• Cadmium: ≤ 1 ppm

Applications & Industries

Tannic Acid bulk powder offers broad utility across natural, technical, and industrial sectors.

• Nutraceuticals & Functional Ingredients: Used in botanical blends, antioxidant systems, and polyphenol-rich formulations.
• Food & Beverage: Applied as a clarifying agent, stabilizer, and complexing compound in specialized food processing workflows.
• Cosmetics & Personal Care: Incorporated into astringent, tightening, and antioxidant-based formulations.
• Leather & Textile Processing: Utilized for tanning, coloring, and polymer–protein interaction processes.
• Industrial & Chemical Applications: Used as a chelating agent, metal ion binder, and natural complexing material in coatings, inks, and adhesives.
• Pharmaceutical & Research: Employed in analytical studies, extraction processes, and polymer–polyphenol interaction research.

Key Advantages

High-purity gallotannin: Assay ≥98% (HPLC) with strict impurity control delivers reliable performance across natural and industrial formulations.

Versatile functional profile: Strong binding, chelation, and protein-interaction properties enable use across food, cosmetic, leather, and chemical sectors.

Consistent analytical characteristics: Defined limits for ash, moisture, solvent residues, and heavy metals ensure reproducibility in manufacturing environments.

Documentation included: Supplied with COA, MSDS, and full specification data to support QA, regulatory, and R&D workflows.

Contact us for Tannic Acid CAS 1401-55-4 bulk pricing, samples, or technical consultation.