Propyl gallate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 121-79-9 |
| Product name | Propyl gallate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Propyl gallate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Propyl gallate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Propyl gallate
| Industry | Application | Process |
|---|---|---|
| Food Industry | Antioxidant to prevent oxidative rancidity of oils and oil-containing foods | Added to edible oils, instant noodles, potato chips, nuts, and baked goods; typically used in combination with other antioxidants (e.g., BHA, BHT) |
| Cosmetics Industry | Antioxidant stabilizer to extend product shelf life | Added to oil-containing cosmetic formulations such as lotions, creams, and sunscreens to prevent lipid oxidation and degradation of active ingredients |
| Pharmaceutical Industry | Antioxidant excipient to protect active pharmaceutical ingredients | Used in oral dosage forms and soft capsules containing unsaturated fatty acids or oxidation-sensitive components to enhance formulation stability |
| Plastics & Rubber Industry | Polymer stabilizer | Applied as a secondary antioxidant during processing of plastics such as polyvinyl chloride (PVC) and polyolefins to retard material aging |
| Inks & Coatings Industry | Anti-skinning agent and antioxidant | Added to oil-based coatings and printing inks to prevent surface oxidation and skin formation, thereby maintaining fluidity |
Manufacturing Quality Control of Propyl gallate
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with UV detection (typically at 270–280 nm), employing methanol-water or acetonitrile-water as the mobile phase for gradient or isocratic elution to quantitatively analyze PG content. This method offers high sensitivity and good reproducibility, suitable for content determination in raw materials and formulations. |
| Purity Analysis | Gas Chromatography-Mass Spectrometry (GC-MS) | After sample derivatization, compounds are separated by gas chromatography and detected by mass spectrometry to identify impurities, used for assessing PG purity and potential organic impurities. Suitable for trace impurity identification. |
| Impurity Testing | High-Performance Liquid Chromatography (HPLC) | Based on content determination, by adjusting the mobile phase gradient, related impurities (such as gallic acid and other ester by-products) can be separated and detected; the total impurity level is calculated to verify compliance with pharmacopoeial or standard requirements. |
| Solution Clarity and Color | Ultraviolet-Visible Spectrophotometry (UV-Vis) | The sample is prepared into a solution of specified concentration, and absorbance is measured at a specific wavelength (e.g., 400–500 nm) to assess whether the solution is clear and colorless or slightly yellow, used for visual quality control. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Drying Method | The sample is dried at a specified temperature (e.g., 105°C) until constant weight is achieved. The mass difference before and after drying is measured to calculate moisture and volatile matter content, used to control product stability. |
| Ash Residue | Gravimetric Analysis | The sample is first carbonized and treated with sulfuric acid, then incinerated at high temperature until constant weight. The residual inorganic matter is weighed to determine the level of inorganic impurities. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, heavy metals such as lead, arsenic, and mercury are determined using AAS or Inductively Coupled Plasma Mass Spectrometry (ICP-MS), ensuring compliance with food safety or pharmaceutical standards. |
| Microbial Limits | Microbial Culture Method | Performed according to pharmacopoeial or food additive standards, including enumeration of aerobic bacteria, molds and yeasts, and testing for controlled pathogens (e.g., Escherichia coli, Salmonella), ensuring microbiological safety of the product. |
Technical Specifications of Propyl gallate
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 146–150 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Propyl gallate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Propyl gallate
Packaging of Propyl gallate
Industrial Propyl gallate Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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