FMoc-DL-asparagine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 157355-73-2 |
| Product name | FMoc-DL-asparagine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent Grade |
| Packaging | 25KG/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 FMoc-DL-asparagine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk FMoc-DL-asparagine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of FMoc-DL-asparagine
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical R&D | Peptide synthesis intermediate | Used to incorporate asparagine residues in solid-phase or solution-phase peptide synthesis via stepwise coupling under Fmoc protection strategy |
| Biotechnology | Protein labeling and modification | Applied as an amino acid derivative for fluorescent labeling, isotopic labeling, or construction of functionalized proteins |
| Chemical research | Chiral compound synthesis | Participates in asymmetric synthesis reactions to provide chiral centers for construction of complex molecules |
| Diagnostics reagent development | Antibody-drug conjugate (ADC) development | Integrated into linker structures for design and synthesis of targeted drug molecules |
Manufacturing Quality Control of FMoc-DL-asparagine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection at 268 nm. |
| Related Substances | HPLC-UV | Separation and quantification of structurally related impurities (e.g., FMOC-Asp-OH, deamidated products) using gradient HPLC with UV detection. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent to determine trace water content based on stoichiometric reaction with water. |
| Residual Solvents | GC-FID | Gas chromatographic separation followed by flame ionization detection to quantify residual solvents (e.g., DMF, DCM, methanol) per ICH Q3C guidelines. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (Pb, Cd, Hg, As) after acid digestion using inductively coupled plasma mass spectrometry. |
| Optical Rotation | [alpha]D Measurement | Determination of specific optical rotation using a polarimeter at 20 C and sodium D-line (589 nm) to confirm chiral integrity. |
| Residue on Ignition | Gravimetric Analysis | Measurement of inorganic ash content after high-temperature incineration and weighing of the residual residue. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder particle size distribution based on angular scattering pattern of laser light. |
| pH of Solution | Potentiometric pH Measurement | Determination of pH in aqueous suspension (1% w/v) using calibrated glass electrode and pH meter. |
| Microbial Limits | Membrane Filtration | Enumeration of aerobic microorganisms and absence testing for specified pathogens per USP <61> and <62>. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range over which solid-to-liquid phase transition occurs, indicating purity and identity. |
Technical Specifications of FMoc-DL-asparagine
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 128°C - 132°C |
| Identification (NMR) | Conforms to reference standard |
| Residue on Ignition | <=0.1% |
| Optical Rotation | +1.0° to +3.0° (c=1, in DMF) |
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 FMoc-DL-asparagine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of FMoc-DL-asparagine
Industrial FMoc-DL-asparagine 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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