China Factory Direct
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| CAS number | 945651-03-6 |
| Product name | (4S)-4-amino-5-(benzyloxy)-5-oxopentanoic acid hydrochloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Pharmaceutical intermediates | Used in the synthesis of peptide-based drugs and chiral compounds; functions as an L-glutamic acid derivative in asymmetric synthesis |
| Organic synthesis | Chiral auxiliaries | Applied as chiral protecting groups in stereoselective reactions to construct complex molecular architectures |
| Chemical biology | Biologically active molecule research | Employed as an amino acid analog in studies of enzyme-catalyzed reaction mechanisms or as a probe molecule |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 210 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally similar impurities by gradient HPLC separation and UV detection relative to the main peak. |
| Residual Solvents | GC-FID | Measures volatile organic solvents (e.g., methanol, toluene) using gas chromatography with flame ionization detection against calibrated standards. |
| Water Content | Karl Fischer Titration | Determines trace water via coulometric or volumetric titration using iodine generation in pyridine-methanol solvent system. |
| Heavy Metals | ICP-OES | Quantifies total heavy metals (Pb, Cd, Ni, etc.) after acid digestion by measuring atomic emission intensities at element-specific wavelengths. |
| Chloride Content | Potentiometric Titration | Measures chloride ions using silver nitrate titrant with silver-sulfide indicator electrode detecting endpoint potential shift. |
| Optical Rotation | [alpha]D Measurement | Determines specific optical rotation using sodium D-line light source to confirm chiral integrity and enantiomeric purity. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic ash content by high-temperature incineration followed by precise weighing of residual residue. |
| pH of Solution | pH Meter Measurement | Evaluates acidity/basicity of a defined aqueous solution using calibrated glass electrode pH meter. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine size distribution based on angular scattering intensity of laser light. |
| Microbial Limits | Membrane Filtration | Assesses total aerobic microbial count and absence of specified pathogens (e.g., E. coli) via filtration, culture, and colony enumeration. |
| Appearance | Visual Inspection | Confirms physical state, color, and clarity of solid material against established reference standards under controlled lighting conditions. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 148-152°C |
| Optical Rotation | +10.5±1.5° (c=1, in 1M HCl) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.