L-Lysine Diisocyanate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 45172-15-4 |
| Product name | L-Lysine Diisocyanate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial Grade |
| Packaging | 25L/drum |
| 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 L-Lysine Diisocyanate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L-Lysine Diisocyanate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of L-Lysine Diisocyanate
| Industry | Application | Process |
|---|---|---|
| Polyurethane Materials | Used as a crosslinker and chain extender for bio-based polyurethanes to enhance elasticity, hydrolysis resistance, and biocompatibility | Reacted with polyols (e.g., polyether polyols, polyester polyols) via step-growth polymerization to produce polyurethane elastomers, waterborne polyurethane dispersions (PUDs), or coatings |
| Biopharmaceuticals | Used in synthesizing biodegradable drug carriers, tissue engineering scaffolds, and targeted conjugation reagents | Selectively added to biomacromolecules containing amino or hydroxyl groups (e.g., gelatin, chitosan, peptides) under mild conditions (pH 8–9, ambient temperature) to form urea or carbamate linkages |
| Specialty Coatings | Formulated into low-VOC, high-solids eco-friendly wood coatings, automotive refinish paints, and corrosion-resistant coatings | Acting as a curing agent component, crosslinked with hydroxyl-functional acrylic resins or polyester resins upon two-component mixing, at ambient or intermediate temperatures (60–120°C) |
Manufacturing Quality Control of L-Lysine Diisocyanate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 230 nm, calibrated against certified reference standard. |
| Free Isocyanate Content | Titration with dibutylamine | Reaction of NCO groups with excess dibutylamine followed by back-titration with HCl to determine unreacted amine. |
| Moisture Content | Karl Fischer Titration | Coulometric or volumetric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Measurement of yellowness index by comparing sample color to APHA platinum-cobalt standards or measuring absorbance at 430 nm. |
| Density at 25 C | Pycnometry or Digital Density Meter | Determination of mass per unit volume using calibrated glass pycnometer or oscillating U-tube density meter. |
| Viscosity at 25 C | Rotational Viscometry | Measurement of resistance to flow under shear using spindle-type viscometer calibrated with standard oils. |
| Acidity (as HCl) | Acid-Base Titration | Neutralization of acidic impurities with standardized NaOH solution using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue after controlled ashing at 550 C in a muffle furnace. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantification of chloride anions using suppressed conductivity detection after ion exchange. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element detection via inductively coupled plasma mass spectrometry after acid digestion and dilution. |
| Residual Solvents (e.g., THF, DMF) | GC-FID | Separation by gas chromatography and detection by flame ionization detector using internal standard calibration. |
| Thermal Stability (Onset Decomposition Temp) | TGA | Measurement of weight loss onset temperature under nitrogen atmosphere using thermogravimetric analysis. |
Technical Specifications of L-Lysine Diisocyanate
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.5% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Optical Rotation | -36.0 to -32.0 deg (c=1, in DMF) |
| Refractive Index (n20/D) | 1.520–1.540 |
| Color (APHA/Pt-Co) | <=100 |
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 L-Lysine Diisocyanate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of L-Lysine Diisocyanate
Packaging of L-Lysine Diisocyanate
Industrial L-Lysine Diisocyanate 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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