L-Aspartic acid benzyl ester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7362-93-8 |
| Product name | L-Aspartic acid benzyl ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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-Aspartic acid benzyl ester
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L-Aspartic acid benzyl ester 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 benzyl ester
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Building block for synthesis of antiviral agents (e.g., adefovir dipivoxil), anticancer drugs, and peptide-based therapeutics | Used as a protected amino acid monomer in solid-phase peptide synthesis (SPPS); incorporated into the peptide chain via benzyl group removal (e.g., catalytic hydrogenolysis with H₂/Pd-C or acidolytic deprotection with TFA/DCM) |
| Organic Synthesis | Chiral synthon for asymmetric catalytic reactions to prepare L-aspartic acid derivatives | Modified via alkaline hydrolysis, acylation, or alkylation for construction of aspartic acid-containing bioactive molecules |
| Food Additive Research | Potential use as a flavor enhancer or nutrient fortifier (currently at laboratory research stage) | Stability and bioavailability evaluated under simulated digestive conditions; no industrial-scale application reported |
Manufacturing Quality Control of L-Aspartic acid benzyl ester
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 200-220 nm, comparing peak area against a certified reference standard. |
| Chiral Purity | Chiral HPLC | Separation of L- and D-enantiomers on a chiral stationary phase, with UV detection and enantiomeric excess calculation. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify benzyl alcohol, toluene, and other process solvents. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content based on stoichiometric reaction. |
| Heavy Metals | ICP-OES | Multi-element quantification after acid digestion by inductively coupled plasma optical emission spectrometry. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anion using suppressed conductivity detection with a carbonate eluent. |
| Sulfate Impurity | Ion Chromatography | Separation and quantification of sulfate anion using suppressed conductivity detection with a carbonate eluent. |
| Related Substances | HPLC-UV | Detection and quantification of structurally related impurities (e.g., L-aspartic acid, benzyl alcohol, di-benzyl aspartate) using gradient HPLC-UV. |
| pH (1% w/v aqueous solution) | pH Meter Measurement | Direct measurement of hydrogen ion activity in a standardized aqueous solution using calibrated pH electrode. |
| Specific Optical Rotation | [alpha]D Measurement | Determination of rotation angle of plane-polarized light at 589 nm using a digital polarimeter, reported as deg*cm^2/g. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after controlled high-temperature ashing of sample. |
| Microbial Contamination | Membrane Filtration | Quantitative recovery and enumeration of aerobic microorganisms via filtration, membrane transfer, and incubation on TSA. |
Technical Specifications of L-Aspartic acid benzyl ester
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 78°C to 82°C |
| Optical Rotation | -15.0° to -17.0° (c=1, in 1M HCl) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
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 benzyl ester
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of L-Aspartic acid benzyl ester
Packaging of L-Aspartic acid benzyl ester
Industrial L-Aspartic acid benzyl ester 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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