DL-Tyrosine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 556-03-6 |
| Product name | DL-Tyrosine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood GradeCosmetic 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 DL-Tyrosine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-Tyrosine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-Tyrosine
| Industry | Applications | Processing |
|---|---|---|
| Pharmaceuticals | Synthesis of peptide-based drugs (e.g., thyrotropin-releasing hormone, TRH), amino acid infusion formulations, and nutritional supplements | Formulated into sterile injectables or oral dosage forms; used as a chiral intermediate in solid-phase peptide synthesis (SPPS) |
| Food | Nutritional fortificant (added to infant formula, sports nutrition products, and foods for special medical purposes) | Dissolved, homogenized, and sterilized prior to addition to final products per GB 14880-2012 |
| Cosmetics | Skin-conditioning agent and antioxidant component (inhibits tyrosinase activity to support skin brightening) | Dissolved at low temperature (<45°C) in the emulsion or aqueous phase before incorporation into formulations; pH maintained between 5.0 and 7.0 to ensure stability |
| Life Science Reagents | Cell culture supplement (particularly for custom low-tyrosine media) and substrate for enzymatic studies (e.g., tyrosinase kinetic assays) | Dissolved in sterile buffer (e.g., PBS or HEPES) at specified concentrations (typically 0.1–1.0 mM) and filtered for sterilization prior to use |
Manufacturing Quality Control of DL-Tyrosine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 275 nm, comparing peak area against a certified reference standard. |
| Specific Optical Rotation | Polarimetry | Measurement of optical rotation in aqueous solution at 20 degrees C using sodium D-line (589 nm) to confirm chiral integrity and absence of significant enantiomeric impurity. |
| Loss on Drying | Gravimetric (Oven Drying) | Mass loss measured after drying sample at 105 degrees C for 2 hours under atmospheric pressure, indicating volatile content including water and solvents. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Residue mass after high-temperature incineration (700-800 degrees C) following sulfuric acid treatment, reflecting inorganic impurities. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Quantification of total heavy metals by atomic absorption spectroscopy after wet ashing and acid digestion, reported as lead equivalent. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Sulfate Content | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 in acidic medium, followed by filtration, drying, and weighing of the precipitate. |
| Iron Content | Colorimetric (1,10-Phenanthroline) | Formation of orange-red Fe(II)-phenanthroline complex measured spectrophotometrically at 510 nm after reduction with hydroxylamine. |
| Related Substances | HPLC-DAD | Separation and detection of structurally related impurities (e.g., tyrosine isomers, degradation products) using gradient HPLC with diode-array detection. |
| pH of Solution | Potentiometric (pH Meter) | Measurement of hydrogen ion activity in a 1% (w/v) aqueous solution at 25 degrees C using calibrated glass electrode. |
| Microbial Contamination | Membrane Filtration / Plate Count | Enumeration of aerobic mesophilic microorganisms via membrane filtration followed by incubation on soybean-casein digest agar. |
| Residual Solvents (e.g., Methanol, Ethanol) | GC-FID | Quantitative analysis using gas chromatography with flame ionization detection, employing headspace sampling and internal standard calibration. |
Technical Specifications of DL-Tyrosine
| Test Item | Specification |
|---|---|
| Appearance | White to off-white powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 340–345 °C (decomposes) |
| 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 DL-Tyrosine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-Tyrosine
Packaging of DL-Tyrosine
Industrial DL-Tyrosine 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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