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Shaanxi Kaishi Biotechnology Co., Ltd
$40
1-49 Kilogram
$35
50-199 Kilogram
$30
≥200 Kilogram
Product Description
Propyl gallate is a synthetic phenolic antioxidant used to help protect fats, oils, and formulated products from oxidative deterioration. With CAS No. 121-79-9, it is valued in selected food, cosmetic, pharmaceutical, and industrial applications where antioxidant performance, regulatory compliance, and compatibility with the product matrix are important purchasing considerations.
Propyl gallate, also known as propyl 3,4,5-trihydroxybenzoate, is the propyl ester of gallic acid. It functions primarily as an antioxidant by helping inhibit oxidation in susceptible ingredients, particularly lipid-containing systems. Commercial material is generally supplied as a crystalline powder and is evaluated according to assay, purity, impurity profile, and intended application.
For B2B procurement, the correct grade should be selected according to the end-use market and applicable regulations. Food-grade, cosmetic-use, laboratory, and industrial specifications are not automatically interchangeable.
| Item | Specification |
|---|---|
| Product Name | Propyl Gallate |
| Synonyms | Propyl 3,4,5-trihydroxybenzoate; Propyl gallate antioxidant |
| Product Category | Antioxidant; phenolic ester; food and formulation ingredient, subject to grade and applicable regulations |
| CAS Number | 121-79-9 |
| Molecular Formula | C10H12O5 |
| Molecular Weight | 212.20 g/mol |
| Typical Appearance | White to creamy-white crystalline powder |
| Identification | Conforms to the applicable pharmacopoeial, food-ingredient, or internal specification |
| Assay | Common commercial grades include approximately 98% or higher, depending on the applicable standard and test method |
| Test Methods | HPLC or another validated method specified by the applicable monograph or product specification |
| Solubility | Slightly soluble in water; more soluble in alcohol and certain organic solvents |
| Function | Helps inhibit oxidation in susceptible formulations, particularly those containing fats or oils |
| Grade Options | Food-grade, cosmetic-use, laboratory, or industrial grade, subject to intended use and market requirements |
| Particle Size | Standard powder or customized particle-size requirements, depending on processing needs |
| Quality Control | Identity, assay, relevant impurities, moisture, and other parameters required by the applicable specification |
| Shelf Life | Typically up to 24 months when stored in the original sealed packaging under recommended conditions; confirm against the product specification |
| Storage | Store tightly sealed in a cool, dry place, protected from excessive heat, moisture, and direct light |
| Packaging | Common bulk options include 1 kg or 5 kg sealed foil bags and 25 kg fiber drums; customized packaging may be arranged |
| Supply Format | Bulk ingredient supply, with packaging and documentation options tailored to the order |
Where permitted by local food regulations, food-grade propyl gallate may be used as an antioxidant in specified fat-containing foods, oils, and related formulations. Permitted food categories, maximum levels, labeling requirements, and combinations with other Antioxidants vary by jurisdiction and must be checked before formulation or sale.
Propyl gallate may be evaluated for use in selected cosmetic formulations to help protect oxidation-sensitive components. Formulators should assess compatibility, solubility, stability, concentration limits, and applicable cosmetic ingredient rules for the target market.
Suitable grades may be used in research, analytical work, or formulation development where an antioxidant of defined chemical identity is required. Pharmaceutical use requires appropriate grade selection, impurity controls, and compliance with the relevant product and jurisdictional standards.
Industrial applications may include selected formulations susceptible to oxidation. Suitability depends on the matrix, processing conditions, target performance, and applicable safety and environmental requirements.
Propyl gallate purchasing decisions should begin with the intended application and its governing specification rather than assay percentage alone. Two products with similar assay values may differ in impurity limits, test methods, documentation, or permitted use. Confirm these factors before comparing quotations or approving a production trial.
| Buyer Requirement | What to Check | Why It Matters |
|---|---|---|
| Food formulation | Food-grade specification, applicable additive regulations, purity limits, permitted food category, and labeling requirements | A suitable assay result alone does not establish legal authorization for every food application or market. |
| Cosmetic formulation | Identity, assay, impurity profile, solubility, compatibility, and target-market ingredient rules | Formulation stability and regulatory suitability depend on more than nominal purity. |
| Laboratory or research use | Analytical grade definition, method, traceability, and any required impurity data | Defined analytical requirements improve reproducibility and comparability between batches. |
| Bulk procurement | Batch documentation, packaging integrity, shelf-life statement, storage conditions, and lot consistency | These factors influence warehousing, incoming inspection, and production planning. |
HPLC is commonly used for assay and impurity assessment when supported by a suitable validated method. However, a reported percentage is meaningful only when the method, reference standard, calculation basis, and acceptance criteria are understood. When comparing suppliers, request the applicable specification and a representative Certificate of Analysis (COA), and compare results generated on a consistent basis.
Quality assessment should be based on the grade and applicable specification. Typical checks include identity, assay, relevant impurities, and moisture where specified. Additional testing may be required for particular applications or markets. Buyers should review the batch COA, analytical method, acceptance criteria, and packaging condition as part of incoming inspection. Any third-party testing or certification should be evaluated against the actual documentation supplied rather than assumed from the product name.
Common bulk packaging includes sealed 1 kg and 5 kg foil bags and 25 kg fiber drums, with other pack sizes or formats available for different order requirements. Keep the material sealed in its original packaging and store it in a cool, dry area away from excessive heat, moisture, and direct light. Follow the product specification and local handling requirements for warehouse storage and transport.
For distributors, formulators, and industrial buyers, packaging configuration, labeling format, batch documentation, and order quantities can be discussed according to the target market and supply program. Any customized specification should be agreed in writing before purchase and assessed for compatibility with the intended application and relevant regulations.
No. Propyl gallate is an ester formed from gallic acid and propanol, whereas gallic acid is the parent phenolic acid. They have different chemical identities, molecular formulas, and application characteristics. Buyers should specify the exact ingredient name and CAS number on purchase orders to prevent substitution or documentation errors.
Propyl gallate is only slightly soluble in water and is generally more soluble in alcohol and certain organic solvents. Its practical solubility depends on temperature, solvent composition, and formulation conditions. Bench testing in the intended matrix is recommended before scale-up, especially when the process requires a clear solution or uniform dispersion.
Not automatically. Different applications and markets may impose different purity, impurity, documentation, and regulatory requirements. A grade suitable for one use should not be assumed suitable for another without reviewing its specification and applicable rules. Confirm the target application, jurisdiction, and required documents before placing a bulk order.
Propyl gallate is a defined phenolic antioxidant for selected formulation and industrial uses where oxidation control is required. Successful sourcing depends on matching the grade, analytical method, impurity profile, and documentation to the intended application and market. Contact us today to request samples, a COA, technical documents, and a wholesale quotation for propyl gallate.
Packaging & Delivery
| Selling Units: | Kilogram |
|---|
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