D-Lysine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 923-27-3 |
| Product name | D-Lysine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent GradeFood GradeCosmetic Grade |
| Packaging | 25KG/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 D-Lysine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-Lysine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of D-Lysine
| Industry | Application | Process |
|---|---|---|
| Food Industry | Nutritional fortificant | Produced via fermentation or synthetic methods, then incorporated into food products to enhance nutritional value |
| Pharmaceutical Industry | Antimicrobial drug synthesis | Leverages the properties of D-lysine to react with other components under controlled conditions, yielding antimicrobial compounds |
| Research | Protein structure and function studies | High-purity material obtained through chemical synthesis, applied in laboratory research on enzyme inhibition and protein–protein interactions |
| Animal Feed | Immune support and growth performance enhancement | Incorporated into feed formulations; exerts its effect following absorption through the animal’s digestive system |
| Cosmetics Industry | Moisturizing agent in skin care products | Integrated into emulsions, creams, and other topical formulations using appropriate techniques to help maintain skin moisture balance |
Manufacturing Quality Control of D-Lysine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (D-Lysine Content) | Acid-Base Titration with Standardized HCl | Quantifies total basic amino groups via potentiometric or indicator-based titration against standardized hydrochloric acid. |
| Enantiomeric Purity (D/L Ratio) | Chiral HPLC with Pre-column Derivatization (e.g., OPA/IBCF) | Separates D- and L-enantiomers after derivatization using a chiral stationary phase; detection by UV or fluorescence. |
| Loss on Drying (LOD) | Gravimetric Analysis at 105 °C | Measures mass loss after drying under controlled temperature and humidity to determine volatile content including water and solvents. |
| Residue on Ignition (Sulfated Ash) | Gravimetric Analysis after Sulfuric Acid Treatment and High-Temperature Ashing | Determines inorganic impurities by carbonizing organic matter, sulfating residual carbon, and weighing non-volatile ash. |
| Heavy Metals (Pb, Cd, As, Hg) | ICP-MS or ICP-OES after Acid Digestion | Quantifies trace metal elements following microwave-assisted acid digestion and elemental analysis by plasma-based spectrometry. |
| Chloride Impurity | Potentiometric Titration with Silver Nitrate | Measures chloride ion concentration via argentometric titration using silver nitrate and a silver/sulfide indicator electrode. |
| Sulfate Impurity | Turbidimetric Method with Barium Chloride | Forms barium sulfate precipitate in acidic medium; quantifies sulfate by measuring turbidity at 420 nm. |
| Specific Optical Rotation | [α]D at 20 °C | Measures rotation of plane-polarized light by chiral D-lysine solution at specified concentration, temperature, and wavelength (589 nm). |
| pH (1% aqueous solution) | Potentiometric pH Measurement | Determines hydrogen ion activity in a standardized aqueous solution using calibrated pH electrode. |
| Related Substances (Impurity Profile) | Reversed-Phase HPLC with UV Detection | Separates and quantifies structurally related impurities (e.g., L-lysine, degradants, process intermediates) using C18 column and UV detection at 200–220 nm. |
Technical Specifications of D-Lysine
| Test Item | Specification |
|---|---|
| Appearance | White Solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 215-220°C |
| Optical Rotation | +13.5° to +14.5° (c=1, H2O) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water; practically insoluble in ethanol and ether |
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 D-Lysine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-Lysine
Packaging of D-Lysine
Industrial D-Lysine 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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