L-Ornithine, N5-(aMinocarbonyl)-N2-[N-[(9H-fluoren-9-ylMethoxy)carbonyl]-L-valyl]- Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 159858-21-6 |
| Product name | L-Ornithine, N5-(aMinocarbonyl)-N2-[N-[(9H-fluoren-9-ylMethoxy)carbonyl]-L-valyl]- |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 159858-21-6
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 159858-21-6 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 159858-21-6
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Raw material for peptide drug synthesis | Solid-phase peptide synthesis (SPPS), as an N-terminal Fmoc-protected building block for incorporation of (S)-valine residues |
| Biochemistry | Protein structure and function studies | Peptide fragment assembly to construct defined amino acid sequences for investigating protein–protein interactions |
| Research Reagents | Amino acid derivative reference standard | Laboratory R&D for synthesizing bioactive peptides and novel chemical entities |
Manufacturing Quality Control of 159858-21-6
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 210-220 nm, comparing peak area to a reference standard. |
| Chiral Purity | Chiral HPLC | Resolves (S,S)-diastereomer from potential (R,S) or other stereoisomers using a chiral stationary phase and UV detection. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., deprotected intermediates, diastereomers) via gradient HPLC. |
| Residual Solvents | GC-FID | Measures residual solvents (e.g., DMF, DCM, THF) using gas chromatography with flame ionization detection against calibration standards. |
| Water Content | Karl Fischer Titration | Determines water by volumetric or coulometric titration based on iodine-sulfur dioxide reaction in pyridine/methanol medium. |
| Heavy Metals | ICP-MS | Quantifies trace metals (Pb, Cd, Hg, Ni, Pd) after acid digestion using inductively coupled plasma mass spectrometry. |
| Residual Palladium | ICP-MS | Specific quantification of palladium catalyst residues post-coupling reactions using ICP-MS with Rh internal standard. |
| Acid Value | Acid-Base Titration | Measures free carboxylic acid groups via titration with standardized NaOH solution using phenolphthalein indicator. |
| Optical Rotation | [alpha]D Measurement | Determines specific optical rotation at 589 nm using a polarimeter to confirm chiral integrity and concentration. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry powder particle size distribution by measuring angular scattering intensity of laser light. |
| Loss on Drying | Gravimetric Analysis | Determines volatile content by measuring weight loss after drying under controlled temperature and vacuum. |
| Microbial Limits | Membrane Filtration | Detects aerobic microorganisms and absence of specified pathogens (e.g., E. coli, S. aureus) per USP <61> and <62>. |
Technical Specifications of 159858-21-6
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC) |
| Optical Rotation | -25.0° to -35.0° (c=1, in DMF) |
| Melting Point | 148°C to 152°C |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| 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 159858-21-6
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| Lot/Batch Number | *Required fields | |
NMR Spectra of 159858-21-6
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Industrial 159858-21-6 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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