DL-Glutamine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 585-21-7 |
| Product name | DL-Glutamine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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 DL-Glutamine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-Glutamine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-Glutamine
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food additive (flavor enhancer, nutrient fortifier) | Added to sports drinks, protein powders, and infant formula; incorporated via direct blending or spray drying |
| Pharmaceutical Industry | Component of parenteral nutrition formulations; critical constituent of cell culture media | Formulated into intravenous nutrition solutions; used in serum-free media for mammalian cell cultures (e.g., CHO, HEK293) |
| Biotechnology | Cell culture medium supplement; nutrient source for protein expression systems | Serves as an energy and nitrogen source in monoclonal antibody and recombinant protein production; added via batch feeding or continuous perfusion |
| Animal Feed Industry | Animal feed additive (supports gut health and enhances immunity) | Pre-mixed with vitamins and trace minerals, then processed into pelleted feed via high-temperature pelleting (≤85°C) |
Manufacturing Quality Control of DL-Glutamine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies DL-glutamine content by titration with standardized HCl or NaOH using potentiometric or indicator endpoint detection. |
| Loss on Drying | Gravimetric Analysis | Measures weight loss after drying at 105 C under vacuum to determine volatile and moisture content. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration followed by weighing of residual residue. |
| Specific Optical Rotation | Polarimetry | Measures optical activity using sodium D-line light to confirm chiral integrity and absence of significant enantiomeric impurity. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals (e.g., Pb, Cd, As, Hg) after acid digestion by atomic absorption at element-specific wavelengths. |
| Chloride | Argentometric Titration | Determines chloride ion concentration via titration with standardized silver nitrate using potassium chromate or potentiometric endpoint. |
| Sulfate | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 under controlled pH and temperature, then weighs the dried precipitate. |
| Related Substances | Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) | Separates and quantifies structurally related impurities (e.g., glutamic acid, pyroglutamic acid) using UV detection at 210 nm. |
| Water Content | Karl Fischer Coulometric Titration | Electrochemically determines trace water content based on stoichiometric iodine generation and reaction with water. |
| pH of Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in a defined aqueous solution (e.g., 1% w/v) using calibrated glass electrode. |
| Microbial Limits | Membrane Filtration and Plate Count | Detects and enumerates aerobic microorganisms and specified pathogens by filtration, culture on selective media, and colony enumeration. |
| Particle Size Distribution | Laser Diffraction | Analyzes particle size distribution in dry powder form using Mie scattering theory applied to laser diffraction patterns. |
Technical Specifications of DL-Glutamine
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 185-187°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Optical Rotation | -5.0° to +5.0° (c=2, H2O) |
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-Glutamine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-Glutamine
Packaging of DL-Glutamine
Industrial DL-Glutamine 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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