China Factory Direct
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| CAS number | 14173-39-8 |
| Product name | L-4-Chlorophenylalanine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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) |
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 |
|---|---|---|
| Pharmaceutical R&D | Chiral drug intermediate for synthesizing bioactive molecules containing chlorophenyl motifs | Prepared via asymmetric synthesis or enzymatic resolution |
| Biochemical Research | Amino acid analog used to study protein structure–function relationships | Incorporated at specific sites via solid-phase peptide synthesis or site-directed mutagenesis |
| Organic Synthesis | Building block for peptide and heterocyclic compound synthesis | Employed in amide coupling, nucleophilic substitution, and other organic reaction steps |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 210-230 nm, comparing peak area to a certified reference standard. |
| Chiral Purity | Chiral HPLC | Enantiomeric excess assessment using a chiral stationary phase and UV detection, resolving L- and D-enantiomers. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of iodine with water in a pyridine-methanol solvent system. |
| Residual Solvents | GC-FID | Separation and quantification of volatile organic solvents (e.g., methanol, ethyl acetate) using flame ionization detection. |
| Heavy Metals | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion and plasma excitation. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract; quantified against calibration standards. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 600-750 C followed by weighing of non-volatile inorganic residue after sulfuric acid treatment. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light at 20 C using sodium D-line (589 nm) to confirm chiral integrity. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Electrochemical determination using calibrated glass electrode in a 1% w/v aqueous suspension. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry or wet dispersed sample via light scattering pattern to determine D10, D50, D90 values. |
| Related Substances | HPLC-UV | Detection and quantification of structurally similar impurities (e.g., dechlorinated analogs, dimers) using gradient elution. |
| Microbial Contamination | Membrane Filtration | Quantitative recovery and enumeration of aerobic microorganisms from dissolved sample using sterile filtration and agar culture. |
| Test Item | Specification |
|---|---|
| Appearance | Off-white powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 148-152°C |
| Optical Rotation | -28.0 to -26.0° (c=1, in 1M HCl) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 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.