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Shaanxi Kaishi Biotechnology Co., Ltd
Product Description
Gallic acid is a naturally occurring phenolic acid found in many plants, fruits, teas, and tannin-rich botanical materials. High-purity gallic acid powder is widely used as a nutritional, cosmetic, food, and research ingredient where defined assay, antioxidant-related functionality, formulation compatibility, and consistent chemical quality are important for commercial production.
Gallic acid, chemically known as 3,4,5-trihydroxybenzoic acid, is a plant-derived phenolic compound commonly associated with hydrolysable tannins. It occurs naturally in botanical sources including gallnuts, sumac-related materials, tea, grapes, berries, and other polyphenol-rich plants.
Commercial gallic acid is typically supplied as a high-purity crystalline powder rather than as a simple crude botanical extract. This distinction is important for procurement because formulators sourcing gallic acid should evaluate assay, impurity profile, source, test method, solubility, and intended application rather than relying only on the botanical origin.
| Item | Specification |
|---|---|
| Product Name | Gallic Acid |
| Chemical Name | 3,4,5-Trihydroxybenzoic Acid |
| Product Category | Phenolic Compound / Antioxidant Ingredient |
| CAS Number | 149-91-7 |
| Molecular Formula | C7H6O5 |
| Molecular Weight | 170.12 g/mol |
| Appearance | White to off-white or pale yellow crystalline powder |
| Common Assay Grades | ≥98%, ≥99%, and custom high-purity specifications |
| Primary Test Method | HPLC |
| Solubility | Slightly soluble in water; solubility increases in hot water and selected polar solvent systems |
| Particle Size | Fine crystalline powder; particle size can be adjusted according to formulation and processing requirements |
| Shelf Life | Typically 24 months when stored in unopened original packaging under recommended conditions |
| Storage | Store in a cool, dry place away from direct sunlight, heat, and moisture |
| Packaging | 1 kg and 5 kg aluminum foil bags; 25 kg fiber drums; customized bulk packaging supported |
| Applications | Dietary supplements, antioxidant formulations, cosmetic products, food-related formulations, laboratory applications, and selected industrial uses |
Gallic acid is frequently marketed alongside tannic acid and ellagic acid because all three are associated with tannin-rich botanical materials. However, they are chemically distinct ingredients and should not be treated as interchangeable. For sourcing purposes, the most important decision is to match the compound identity and assay specification to the intended formulation.
| Ingredient | Main Chemical Character | Buyer Consideration |
|---|---|---|
| Gallic Acid | Low-molecular-weight phenolic acid | Suitable when a defined gallic acid assay and relatively simple phenolic profile are required |
| Tannic Acid | Hydrolysable tannin mixture with substantially higher molecular complexity | Selected for tannin-related functionality rather than as a direct substitute for gallic acid |
| Ellagic Acid | Polyphenolic compound structurally different from gallic acid | Used when the formulation specifically requires ellagic acid rather than general tannin-derived phenolics |
A botanical source such as gallnut or Rhus-derived material may contain several tannin-related compounds. For a high-purity gallic acid project, procurement teams should therefore focus on the final chemical specification rather than assuming that a botanical extract automatically provides equivalent gallic acid purity.
The product name, CAS number, HPLC assay, and batch COA should all correspond to gallic acid specifically. This is especially important when comparing quotations that may use broader terms such as gallnut extract, tannin extract, or polyphenol powder.
Gallic acid can be used in selected antioxidant and polyphenol-oriented nutritional formulations. It may be incorporated as a defined phenolic compound when formulators want tighter chemical control than is typically available from a broad-spectrum botanical powder.
Gallic acid has been studied for antioxidant-related properties relevant to cosmetic development. Formulators may evaluate it for selected skincare concepts where polyphenolic activity is desired, while carefully considering solubility, pH, oxidation sensitivity, use level, compatibility, and target-market cosmetic regulations.
Because gallic acid is a naturally occurring phenolic compound, it may be considered for selected food-related and functional formulation projects where permitted. Final use should be reviewed according to the intended product category, processing conditions, target market, and applicable regulatory requirements.
High-purity gallic acid is commonly used as an analytical and research compound in polyphenol-related studies and antioxidant assays. For these applications, buyers should pay particular attention to chemical purity, analytical documentation, solvent compatibility, and lot-to-lot consistency.
The most suitable specification depends on the final application. A ≥98% grade can be suitable for general formulation projects where the finished-product standard allows a broader impurity margin, while ≥99% material offers tighter chemical-purity control for more specification-sensitive applications.
| Grade | Typical Use | Selection Priority |
|---|---|---|
| ≥98% Gallic Acid | General formulations and commercial ingredient projects | Balance between assay requirement and formulation cost |
| ≥99% Gallic Acid | High-specification formulations and analytical applications | Tighter purity control and more consistent raw-material input |
| Custom Specification | Specialized processing or market-specific projects | Control of assay, particle size, documentation, and application requirements |
Reliable gallic acid sourcing requires more than checking the headline assay percentage. Commercial quality control should confirm the identity of the target compound and evaluate contaminants, residual processing materials, and physical quality parameters that can affect downstream production.
Gallic acid can be supplied in 1 kg and 5 kg aluminum foil bags for sampling, formulation development, and smaller commercial requirements, together with 25 kg fiber drums for bulk orders. Customized packaging can be arranged according to processing, transportation, and inventory requirements.
Store the material tightly sealed in a cool, dry environment away from direct sunlight, excessive heat, and moisture. Under recommended storage conditions in unopened original packaging, a typical commercial shelf life is 24 months.
Gallic acid can be incorporated into customized nutritional, powder, capsule, tablet, and selected cosmetic formulation projects. OEM and private-label services can include formula development, ingredient matching, finished-product manufacturing, labeling, and flexible packaging. Raw-material specifications can also be adjusted according to the desired purity, formulation format, and commercial positioning.
No. Gallic acid is a defined chemical compound, while gallnut extract is a broader botanical material that may contain tannins, gallic acid, and other constituents depending on processing. Buyers requiring a specific gallic acid input should compare CAS identity, HPLC assay, and batch COA rather than relying on botanical-source terminology alone.
No. Gallic acid and tannic acid are chemically different materials. Gallic acid is a relatively small phenolic acid, while tannic acid represents a more complex hydrolysable tannin material. They differ in molecular structure, physical behavior, assay methods, and formulation function, so they should not be substituted without technical evaluation.
The right grade depends on the finished-product specification and cost target. A qualified 98% grade can be suitable for many commercial applications, while 99% material provides tighter purity control for more demanding formulations. Buyers should also compare impurity profile, residual solvents, contaminants, physical characteristics, and documentation instead of assay percentage alone.
A professional raw-material review should include the batch COA, product specification or TDS, and SDS. Buyers should verify identity, HPLC assay, heavy metals, microbiological parameters, residual solvents where applicable, moisture, storage conditions, and consistency between the commercial specification and the batch actually supplied.
Gallic acid is a versatile high-purity phenolic ingredient used across nutritional, cosmetic, food-related, and research applications. Buyers should distinguish it clearly from tannic acid, ellagic acid, and crude botanical extracts, with particular attention to compound identity, HPLC assay, purity, and formulation compatibility. Contact us today to request samples, a COA, technical documents, and a wholesale quotation for gallic acid.
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