L-Norleucine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 327-57-1 |
| Product name | L-Norleucine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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) |
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Documents We Provide for L-Norleucine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L-Norleucine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of L-Norleucine
| Industry | Application | Process |
|---|---|---|
| Food | Flavor enhancer | Used in seasonings and food additives |
| Pharmaceuticals | Synthetic drug intermediate | Applied in the synthesis of antibiotics, analgesics, and other pharmaceuticals |
| Chemical | Amino acid derivative synthesis | Applied in the production of other amino acids or organic compounds |
| Animal feed | Nutritional additive | Supplemented as an essential amino acid in animal feed |
| Biotechnology | Component of microbial fermentation media | Used in microbial culture and protein expression |
Manufacturing Quality Control of L-Norleucine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (L-Leucine Content) | Acid-Base Titration | Quantifies amino group via titration with standardized HCl or NaOH using indicator or potentiometric endpoint detection. |
| Specific Optical Rotation | [alpha]D Measurement | Measures rotation of plane-polarized light by chiral L-leucine in solution at specified concentration and wavelength. |
| Loss on Drying (LOD) | Gravimetric Method | Determines volatile content by mass loss after drying at defined temperature and time under controlled conditions. |
| Residue on Ignition | Gravimetric Method | Measures inorganic ash content after high-temperature incineration of sample followed by weighing. |
| Chloride Impurity | Argentometric Titration | Quantifies chloride ions by precipitation titration with silver nitrate using potassium chromate or potentiometric detection. |
| Sulfate Impurity | Barium Sulfate Turbidimetry | Measures sulfate as insoluble BaSO4 precipitate; turbidity is proportional to sulfate concentration. |
| Heavy Metals (as Pb) | Colorimetric Method with Dithizone | Forms colored metal-dithizone complexes in acidic medium; intensity compared to lead standard. |
| Iron Impurity | UV-Vis Spectrophotometry | Measures Fe(II)-1,10-phenanthroline complex absorbance at ~510 nm after reduction and chelation. |
| Ammonium Impurity | Nesslerization | Forms yellow-brown colloidal complex between ammonium and Nessler's reagent; absorbance measured spectrophotometrically. |
| Related Substances | HPLC | Separates and quantifies structurally similar impurities (e.g., other amino acids, dipeptides) using reversed-phase column and UV detection. |
| Water Content | Karl Fischer Titration | Electrochemically determines water via iodine-sulfur dioxide reaction in anhydrous methanol-based solvent. |
| Microbial Limits | Membrane Filtration | Quantifies viable aerobic microorganisms by filtration, membrane transfer to agar media, and colony enumeration after incubation. |
Technical Specifications of L-Norleucine
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 274-278 °C |
| Optical Rotation | +22.0 to +24.0 ° (c=1, H2O) |
| Total Impurities | <=2.0% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Identification (NMR) | Conforms to reference spectrum |
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-Norleucine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of L-Norleucine
Packaging of L-Norleucine
Industrial L-Norleucine 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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