L-ASPARTIC ACID Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6899-03-2 |
| Product name | L-ASPARTIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical 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-ASPARTIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L-ASPARTIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of L-ASPARTIC ACID
| Industry | Application | Process |
|---|---|---|
| Food Industry | Flavor enhancer | Produced via fermentation |
| Pharmaceutical Industry | Production of pharmaceutical intermediates | Chemical synthesis |
| Dietary Supplement Industry | Additive | Produced via fermentation |
| Pesticide Industry | Preparation of pesticide intermediates | Chemical synthesis |
Manufacturing Quality Control of L-ASPARTIC ACID
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantitative determination of aspartic acid content by titration with standardized NaOH using phenolphthalein indicator. |
| Specific Optical Rotation | Polarimetry | Measures the angle of rotation of plane-polarized light caused by chiral aspartic acid molecules in solution. |
| Loss on Drying | Gravimetric Analysis (Thermogravimetry) | Determines volatile matter content by measuring mass loss after drying at 105 C for 2 hours. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Measures non-volatile inorganic impurities remaining after high-temperature incineration. |
| Chloride | Argentometric Titration (Mohr method) | Quantifies chloride ions via precipitation titration with standardized silver nitrate using potassium chromate indicator. |
| Sulfate | Barium Sulfate Gravimetry | Determines sulfate content by precipitation as BaSO4 and weighing the dried precipitate. |
| Heavy Metals | Colorimetric Limit Test (with H2S) | Compares sample color intensity against lead standard after reaction with hydrogen sulfide under acidic conditions. |
| Iron | UV-Vis Spectrophotometry (with 1,10-phenanthroline) | Measures Fe2+ complex absorbance at ~510 nm after reduction and chelation. |
| Ammonium | Nesslerization followed by UV-Vis Spectrophotometry | Forms yellow-brown iodomercurate complex with ammonium ions; absorbance measured at ~425 nm. |
| Related Substances | HPLC (Reverse Phase) | Separates and quantifies structurally similar impurities using C18 column and UV detection at 200 nm. |
| Water Content | Karl Fischer Titration | Electrochemical titration quantifying water based on iodine consumption in pyridine/methanol buffer. |
| Microbial Contamination | Membrane Filtration and Plate Count | Detects and enumerates viable aerobic microorganisms by filtration, membrane transfer, and colony growth on agar media. |
Technical Specifications of L-ASPARTIC ACID
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 235-240°C (decomposes) |
| Optical Rotation | -27.0° to -29.0° (c=1, H2O) |
| Total Impurities | <=1.5% |
| Heavy Metals | <=20 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-ASPARTIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of L-ASPARTIC ACID
Industrial L-ASPARTIC ACID 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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