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Shaanxi Kaishi Biotechnology Co., Ltd
$55
10-199 Kilogram
$50
200-499 Kilogram
$45
≥500 Kilogram
Product Description
Tannic acid is a naturally occurring plant-derived polyphenol found in various botanical materials, including gallnuts and certain tree barks. Commercial tannic acid is used in food and beverage processing, pharmaceutical and laboratory research, cosmetic formulations, leather processing, and industrial applications. Its suitability depends on purity, source, intended use, and applicable quality requirements.
Tannic acid belongs to the hydrolyzable tannin family and is valued for its multiple phenolic hydroxyl groups, which contribute to protein binding, metal complexation, and antioxidant activity in laboratory systems. Commercial grades can differ in composition and analytical profile, making a clearly defined specification important for sourcing and formulation.
Tannic acid is a polyphenolic compound commonly associated with gallnuts and other tannin-rich plant materials. The term is used commercially for tannin preparations whose exact composition can depend on botanical source and processing. Unlike a simple, uniform small molecule, commercial tannic acid may consist of related galloyl-containing structures.
Its multiple phenolic groups enable interactions with proteins and certain metal ions. These properties support its use in analytical chemistry, material processing, and selected formulation applications. For buyers, the key considerations are the intended grade, tannic acid assay, botanical source, color, solubility, and impurity limits.
| Item | Specification |
|---|---|
| Product Name | Tannic Acid |
| Ingredient Category | Plant-derived polyphenol / hydrolyzable tannin |
| Common Botanical Sources | Gallnuts and other tannin-rich plant materials |
| CAS Number | 1401-55-4 |
| Molecular Formula | Commonly represented as C76H52O46 for a decagalloyl glucose model; commercial tannic acid may vary in composition |
| Molecular Weight | 1701.20 g/mol for the commonly cited decagalloyl glucose model |
| Appearance | Typically a pale yellow to light brown or tan powder |
| Odor | Generally faint or nearly odorless |
| Assay / Grade | Common commercial grades include approximately 95% and 98% assay, depending on the analytical method and product specification |
| Identification and Assay | Suitable titrimetric, spectrophotometric, or chromatographic methods, as defined by the applicable product standard |
| Solubility | Soluble in water and more readily soluble in aqueous alcohol systems; actual solubility depends on grade and test conditions |
| Functional Characteristics | Polyphenolic structure, protein-binding capacity, and metal-complexing properties |
| Particle Size | Powder; mesh size can be customized to formulation and processing requirements |
| Quality Parameters | Identity, assay, moisture, heavy metals, microbiological quality, and residual solvents where applicable |
| Shelf Life | Typically 24 months when stored in a suitable sealed package under recommended conditions, subject to the product specification |
| Storage | Store in a tightly sealed container in a cool, dry place, protected from light and moisture |
| Packaging | Common bulk options include 1 kg and 5 kg aluminum foil bags and 25 kg fiber drums; customized packaging is available |
| Applications | Laboratory research, selected food-processing applications, cosmetic formulation development, leather processing, and industrial use according to grade and regulations |
Specification note: Tannic acid is a complex tannin material, and its composition and assay can vary with source, processing, and analytical method. The molecular formula and molecular weight listed above represent a commonly cited decagalloyl glucose model rather than a guarantee that every commercial tannic acid preparation has an identical molecular composition. Buyers should evaluate the actual product specification and certificate of analysis.
```htmlTannic acid and related tannins are relevant to selected food-processing applications, including research involving clarification, protein interactions, and phenolic composition. Only suitable food-grade material should be used in food applications, and its use must comply with the regulations applicable to the target market and product category.
Tannic acid is investigated for use in selected cosmetic formulations because of its polyphenolic structure and interactions with proteins. Formulators should assess solubility, color contribution, compatibility with other ingredients, pH conditions, and finished-product stability. Ingredient suitability and permitted claims should be evaluated against the applicable cosmetic regulations.
Tannic acid is used in laboratory research involving protein precipitation, polyphenol chemistry, metal-ion interactions, and material preparation. Research-grade material should be selected according to assay requirements, analytical method, impurity profile, and the reproducibility needed for the intended experiment.
Tannin-rich materials have a long history of use in leather processing. Tannic acid and related tannin preparations may also be used in selected industrial research and material applications involving protein interactions or metal complexation. Industrial buyers should specify the required performance characteristics, processing conditions, and grade before procurement.
Tannic acid may be used as a research ingredient in investigations of polyphenol chemistry and formulation interactions. Research-grade material is not automatically suitable for pharmaceutical manufacturing or human consumption. Any pharmaceutical application requires appropriate quality documentation, safety assessment, and compliance with the relevant regulatory standards.
The most important sourcing decision is to match the assay method and grade to the intended application. A stated purity percentage does not always represent the same chemical measurement across different suppliers, because tannic acid is a structurally complex tannin material and analytical methods may measure different properties.
| Buyer Requirement | Recommended Evaluation | Why It Matters |
|---|---|---|
| General industrial use | Review assay, color, solubility, moisture, and processing compatibility | These parameters help determine suitability for the intended manufacturing process. |
| Laboratory research | Specify the analytical method, assay basis, impurity profile, and required reproducibility | Different methods may produce results that are not directly comparable. |
| Food-related application | Require suitable food-grade specifications and relevant contaminant testing | Industrial or research-grade material should not be assumed suitable for food use. |
| Cosmetic formulation | Evaluate color, solubility, pH compatibility, and stability in the finished formulation | Polyphenol interactions can influence the appearance and compatibility of the final product. |
| Leather and material processing | Assess functional performance under the intended process conditions | Application performance may depend on more than the headline assay percentage. |
Depending on the applicable specification, tannic acid can be assessed using titrimetric, spectrophotometric, or chromatographic techniques. These methods are not automatically interchangeable: some measure an overall analytical response, while others focus on specific components or profiles. When comparing suppliers, buyers should confirm the method, reference standard, sample preparation, reporting basis, and acceptance limits. A higher reported percentage should not be treated as proof of superior performance unless the results are analytically comparable.
Tannic acid powder can be supplied in common bulk formats, including 1 kg and 5 kg aluminum foil bags and 25 kg fiber drums. Packaging can be adapted to order volume, transportation needs, and the intended application.
Store the product in a tightly sealed container in a cool, dry place, away from direct sunlight and moisture. Protect it from contamination during sampling and handling. Because tannic acid can interact with proteins and certain metal ions, clean handling equipment and compatible processing materials are recommended. The product-specific shelf life and storage instructions should follow the applicable technical documentation.
OEM and private label services can support businesses incorporating tannic acid into suitable commercial product lines. Depending on the intended application and product format, available development options may include specification customization, powder packaging, labeling, and formulation support.
Final product composition, labeling, safety documentation, and claims should be assessed against the regulatory requirements of the intended market.
A suitable quality-control program should reflect the intended grade and application of tannic acid. Relevant checks may include:
For regulated applications, acceptance criteria should be established against the applicable product standard and local requirements. Third-party testing and supporting quality documentation can assist with supplier qualification and incoming-material verification.
The commonly referenced CAS number for tannic acid is 1401-55-4. Because commercial tannic acid can vary in composition and analytical profile, buyers should verify that the CAS number, product identity, assay method, and supporting documentation are consistent with the particular material being purchased.
A commonly cited molecular model for tannic acid is decagalloyl glucose, represented by C76H52O46 with a molecular weight of approximately 1701.20 g/mol. Commercial tannic acid may contain related structures, so these values should not be interpreted as a guarantee of identical molecular composition for every commercial preparation.
Buyers should first confirm whether the reported assay percentages use the same analytical method, reference standard, and calculation basis. They should then compare impurity limits, moisture, color, solubility, and application requirements. A higher assay figure alone does not establish better suitability when the methods or end-use requirements differ.
Suitability depends on the grade, product composition, applicable safety requirements, and local regulations. Food applications require material that meets relevant food-grade specifications and permitted-use requirements. Cosmetic formulators should assess compatibility, stability, and ingredient restrictions. Industrial or research-grade tannic acid should not automatically be considered suitable for either use.
Buyers should request a batch-specific COA, technical data sheet, and safety data sheet. The documents should identify the material, assay method, specification limits, and relevant quality results. Depending on the application, buyers may also require contaminant testing, microbiological results, and additional documentation for regulatory or internal quality review.
Tannic acid is a versatile plant-derived polyphenol used in research, selected formulation work, and industrial processing. Effective procurement depends on selecting the correct grade, understanding the assay method, and matching quality parameters to the intended application. Clear specifications and batch-level documentation help buyers assess consistency and suitability before scaling up production.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for tannic acid.
Packaging & Delivery
| Selling Units: | Kilogram |
|---|
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