L-Threonine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 72-19-5 |
| Product name | L-Threonine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 L-Threonine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L-Threonine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of L-Threonine
| Industry | Application | Process |
|---|---|---|
| Animal Feed Industry | As an essential amino acid for nutritional fortification of animal feed, supporting growth, development, and improved feed conversion efficiency | Directly incorporated into premixes or compound feeds during blending operations |
| Food Industry | Used as a food nutrient fortificant to enhance protein nutritional value; also functions as a flavor modifier | Added directly to foods or beverages during processing |
| Pharmaceutical Industry | A key component in amino acid infusion solutions and oral nutritional supplements for treating malnutrition or supporting postoperative recovery | Formulated into sterile injectables or oral dosage forms (e.g., tablets, capsules) via aseptic processing |
| Biochemical Industry | Serves as a precursor or substrate for synthesizing high-value compounds (e.g., antibiotics, agrochemicals) | Produced via fermentation, followed by extraction and purification for use in downstream synthesis processes |
Manufacturing Quality Control of L-Threonine
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Identification | Infrared Spectroscopy (IR) | Compare the infrared absorption spectra of the sample and reference standard under the same conditions by matching characteristic absorption peaks to confirm molecular structure consistency. |
| Thin-Layer Chromatography (TLC) | Perform qualitative identification by comparing the Rf value of L-Threonine in a specific developing system with that of the reference substance. | |
| Assay | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase column (e.g., C18) with a UV detector or evaporative light scattering detector, and quantify L-Threonine content by external standard method. |
| Amino Acid Auto Analyzer Method | Based on ion-exchange chromatography combined with ninhydrin coloration reaction, specifically used for separation and quantification of amino acids; offers high sensitivity and good selectivity. | |
| Specific Optical Rotation | Polarimetry | Dissolve the sample into a solution of defined concentration and measure its optical rotation under a sodium lamp. Calculate the specific optical rotation to verify optical purity. |
| pH Value | pH Meter Method | Dissolve L-Threonine in water and directly measure the pH of the solution using a calibrated pH meter to determine whether its acidity or alkalinity meets specifications. |
| Moisture Content | Karl Fischer Titration | Quantitatively react water in the sample with Karl Fischer reagent, and determine moisture content by volumetric or coulometric titration. |
| Residue on Ignition (Sulfated Ash) | Gravimetric Method | Ignite the sample at high temperature, then weigh the residual inorganic matter to calculate the percentage of residue, assessing the level of inorganic impurities. |
| Heavy Metals | Thioacetamide Method (Chinese Pharmacopoeia Method) | In weakly acidic conditions, heavy metals react with thioacetamide to form colored sulfide precipitates; assessed by colorimetry for limit control. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use gradient or isocratic elution to detect other amino acids or degradation products possibly present in L-Threonine, evaluating purity. |
| Microbial Limits | Microbial Limits Test | Conduct total aerobic microbial count, mold and yeast count, and test for specified microorganisms (e.g., Escherichia coli) according to pharmacopoeial requirements. |
| Particle Size Distribution | Laser Diffraction Particle Size Analysis | Measure particle size distribution based on laser light scattering principle; suitable for physical property control of powdered L-Threonine. |
Technical Specifications of L-Threonine
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 234-236°C (dec.) |
| Optical Rotation | -27.5 to -29.0° (c=5, H2O) |
| Total Impurities | <=1.5% (HPLC) |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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-Threonine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of L-Threonine
Packaging of L-Threonine
Industrial L-Threonine 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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