Tannic acid with CAS 1401-55-4
What is Tannic acid?
Tannic acid (CAS 1401-55-4), also known as tannin or gallotannin, is a naturally occurring polyphenolic compound extracted from plant sources such as oak bark, tea leaves, and nutgalls. With the molecular formula C₇₆H₅₂O₄₆ and a molecular weight of 1701.2, this versatile compound features a complex structure with multiple gallic acid ester groups.
As a trusted tannic acid supplier and manufacturer in China, Runtai Chemical produces food-grade tannic acid, pharmaceutical-grade tannic acid, and industrial-grade tannic acid — all meeting international standards, including USP, BP, and EP specifications. Our tannic acid is characterized by excellent solubility in water and alcohol, strong astringent properties, and a high binding affinity for proteins and alkaloids.
Runtai Chemical is a professional and reliable China manufacturer of Tannic acid with CAS 1401-55-4 with higher purity and lower price. If you are interested in our Tannic acid, PLS free to contact us for a free sample!
Product Advantages
- Multiple Grade Options: Our tannic acid is available in food-grade, pharmaceutical-grade, and industrial-grade variants, each meeting specific regulatory requirements such as USP, BP, and EP standards
- Global Export Experience: Extensive experience in international shipping with compliant packaging (1kg/bag; 25kg/drum), proper documentation, and full adherence to export regulations worldwide.
- Strict Quality Assurance: Advanced testing facilities and rigorous quality control at every production stage — heavy metals, moisture, and residue on ignition all meet strict specifications.
- Flexible MOQ & Competitive Pricing: We offer flexible minimum order quantities for both bulk industrial tannic acid procurement and smaller food-grade tannic acid orders, with factory-direct pricing.
Tannic acid Quick details
- Chemical Name: Tannic acid
- CAS No.: 1401-55-4
- EINECS: 215-753-2
- Molecular Formula: C76H52O46
- Molecular weight:1701.2
- Appearance: Light yellow powder
- Assay: 78%; 83%; 92%; 95%; 96%
- Grade: Food Grade Tannic Acid | Pharmaceutical Grade | Industrial Grade Tannic Acid
- Synonyms:abcolsumack19;abcoltannicacidtech;abcoltannicacidusp/kosher;acaciamollissimatannin;acid,tannic;acidetannique;castaneasativamilltannin;chestnuttannin
Tannic acid Typical Properties
| Item | Specifications | Results |
| Appearance | Light Yellow to Brown Powder | Conforms |
| Odor | Practically odourless | Conforms |
| Taste | Neutral/slight astringent taste | Conforms |
| Solubility | Soluble in water, in acetone and
alcohol |
Conforms |
| Tannic acid Content (Dry Basis) | ≥92% | 93.51% |
| Loss on drying | ≤9.0％ | 7.80% |
| Residue on ignition | ≤1.0％ | 0.15% |
| Pb | ≤2.0 ppm | Conforms |
| As | ≤1.0 ppm | Conforms |
| Hg | ≤1 ppm | Conforms |
| Cd | ≤3.0 ppm | Conforms |
| Heavy Metal | ≤20 ppm | Conforms |
| Total Plate Count | ≤1000cfu/g | 130cfu/g |
| Yeast & Mold | ≤100cfu/g | 24cfu/g |
| E.coil | ND. | ND. |
| Salmonella | ND. | ND. |
| Staphylococcus aureus | ND. | ND. |
| Shigella sonnei | ND. | ND. |
| GMO | GMO Free, not detected | Conforms |
| Irradiation | Non Irradiation | Conforms |
| Ethylene oxide | <0.1 ppm | Conforms |
| Sulphite | <10 ppm | Conforms |
| Conclusion | The Results Conforms With Enterprise Standards | |
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Tannic acid Applications
- Food & Beverage Industry — Food Grade Tannic Acid: Used as a clarification agent and natural flavor enhancer in wine making, beer brewing, and juice processing. Food-grade tannic acid effectively removes unwanted proteins, improves taste stability.
- Pharmaceutical Industry — Pharmaceutical Grade Tannic Acid: Applied in antiseptic formulations, anti-diarrheal medications, and hemostatic agents. Pharmaceutical-grade tannic acid (USP/BP) is effective in treating burns, wounds, and various dermatological conditions.
- Leather Industry — Industrial Grade Tannic Acid: An essential tanning agent for producing high-quality leather goods. Industrial-grade tannic acid (CAS 1401-55-4) provides excellent color fixation, texture enhancement, and long-term durability for leather products.
- Water Treatment: An effective coagulant and flocculant used in municipal and industrial water treatment plants to remove impurities and heavy metal contaminants.
- Ink & Dye Industry: A key ingredient in iron gall ink manufacturing and textile dyeing, providing deep, permanent coloration across various substrates.
- Cosmetics & Personal Care: Valued for its astringent properties in toners, anti-aging serums, and oily skin management formulations. Widely used in cosmetic raw material sourcing globally.
- Chemical Industry: Used as a precipitating agent for alkaloids, proteins, and gelatin. An important intermediate in organic synthesis reactions.
- Paper Industry: Applied as a sizing agent and coating material for specialty papers, improving water resistance and printability.
Tannic acid Package & Storage
- Package: 1kg/bag;25kg/drum
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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