DL-α-Tocopherol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10191-41-0 |
| Product name | DL-α-Tocopherol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial GradeFood GradeCosmetic Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 DL-α-Tocopherol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-α-Tocopherol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-α-Tocopherol
| Industry | Application | Process |
|---|---|---|
| Food Industry | Antioxidant | Added to food products to retard oxidation |
| Cosmetics Industry | Antioxidant; skin-care ingredient | Incorporated into emulsions, creams, and similar formulations |
| Pharmaceutical Industry | Pharmaceutical excipient; antioxidant | Used to ensure formulation stability and protect active pharmaceutical ingredients |
| Animal Feed | Antioxidant; nutritional supplement | Added to feed formulations to enhance feed stability |
| Plastics Industry | Stabilizer | Added to polymer materials to prevent thermo-oxidative degradation |
Manufacturing Quality Control of DL-α-Tocopherol
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with a UV detector (typically at 290–300 nm wavelength), and mobile phases such as methanol or methanol-water to separate and quantify DL-α-tocopherol. This method offers high sensitivity and excellent reproducibility, making it the most commonly used method in pharmacopeias and standards. |
| Purity Check | Gas Chromatography (GC) | Applicable to samples with good volatility; separation is achieved using a capillary column with a flame ionization detector (FID) to effectively detect organic impurities and isomers, commonly used to evaluate related impurities in tocopherol. |
| Identification | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Utilizes the characteristic absorption peaks of DL-α-tocopherol near 292 nm and 298 nm for qualitative identification. The method is simple to operate but has relatively low specificity, often used as an auxiliary identification tool. |
| Residual Solvents | Headspace-Gas Chromatography (HS-GC) | Detects organic solvents potentially residual from production (e.g., methanol, n-hexane) by heating the headspace vial to volatilize the solvents, followed by injection and analysis, in compliance with ICH guidelines on residual solvents. |
| Water Content | Karl Fischer Titration | Available in volumetric and coulometric forms, this method precisely determines water content in samples. It is particularly important for stability control, especially for lipophilic vitamins. |
| Specific Rotation | Polarimetry | Although DL-α-tocopherol is a racemate (equal mixture of D- and L-forms) with a theoretical specific rotation of 0°, this test can verify the presence of optically active impurities or assess consistency of the synthetic process. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Determines residues of heavy metals such as lead, arsenic, mercury, and cadmium to ensure compliance with safety limits for pharmaceutical or food additive use. |
| Microbial Limits | Microbial Limit Test | Performs tests in accordance with pharmacopeial regulations, including total aerobic microbial count, mold and yeast counts, and tests for specified control organisms (e.g., Escherichia coli, Salmonella spp.) to ensure microbiological safety of the product. |
Technical Specifications of DL-α-Tocopherol
| Test Item | Specification |
|---|---|
| Appearance | Yellow to amber clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | <=1.0 |
| Odor | Characteristic mild odor |
| Optical Rotation | +20° to +26° (c=1 in chloroform) |
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 DL-α-Tocopherol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-α-Tocopherol
Packaging of DL-α-Tocopherol
Industrial DL-α-Tocopherol 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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