China Factory Direct
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| CAS number | 25167-62-8 |
| Product name | DOCOSAHEXAENOIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeReagent 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Food & Dietary Supplements | Infant formula and dietary supplements (to support brain and visual development) | Microalgal fermentation or fish oil extraction |
| Pharmaceuticals | Adjunctive ingredient for cardiovascular disease, depression, and Alzheimer’s disease | High-purity separation and esterification |
| Animal Feed | Feed additive for aquaculture (to improve larval survival rate and stress resistance) | Lipid encapsulation or microencapsulation |
| Cosmetics | Anti-aging skincare ingredient (to restore skin barrier function and reduce inflammation) | Nanoemulsification or liposomal encapsulation |
| Research | Neuronal membrane fluidity studies and lipid metabolism modeling | Chromatographic purification and isotopic labeling |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (DHA content) | GC-FID | Quantifies DHA by separation on a capillary column and flame ionization detection using fatty acid methyl ester derivatives. |
| Iodine Value | Wijs method | Measures unsaturation via addition of iodine monochloride to double bonds, followed by titration of unreacted iodine with sodium thiosulfate. |
| Acid Value | Acid-base titration | Determines free fatty acids by titration with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Peroxide Value | Titration with potassium iodide | Measures primary oxidation products by reaction with potassium iodide under acidic conditions, followed by titration of liberated iodine with sodium thiosulfate. |
| p-Anisidine Value | UV-Vis spectrophotometry | Quantifies secondary oxidation products (aldehydes) by reaction with p-anisidine in acetic acid and measurement of absorbance at 350 nm. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Simultaneously quantifies trace heavy metals after acid digestion using inductively coupled plasma mass spectrometry. |
| Residual Solvents (e.g., hexane, ethanol) | GC-FID | Detects and quantifies volatile organic solvents using gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer titration | Determines water content by coulometric or volumetric titration using iodine generated electrochemically in the presence of water. |
| Trans Fatty Acid Content | GC-FID | Identifies and quantifies trans isomers after derivatization and separation on highly polar capillary columns. |
| Total Oxidized Lipids (TOTOX) | Calculated from Peroxide and p-Anisidine Values | TOTOX = 2 x Peroxide Value + p-Anisidine Value; estimates overall oxidative degradation. |
| Microbial Contamination (Total Aerobic Count) | Plate count agar method | Quantifies viable aerobic microorganisms by colony formation on nutrient agar after incubation at specified temperature and time. |
| Residual Catalyst (e.g., Ni, Pd) | ICP-OES | Measures residual metal catalysts after acid digestion using inductively coupled plasma optical emission spectroscopy. |
| Test Item | Specification |
|---|---|
| Appearance | Clear, pale yellow to amber liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Acid Value (mg KOH/g) | <=2.0 mg KOH/g |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.478–1.482 |
| Odor | Characteristic fatty odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.