(2S)-2-amino-3-(4-aminophenyl)propanoic acid;dihydrochloride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 139879-21-3 |
| Product name | (2S)-2-amino-3-(4-aminophenyl)propanoic acid;dihydrochloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty 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 139879-21-3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 139879-21-3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 139879-21-3
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Raw material for peptide-based drug synthesis (e.g., anticancer and antiviral peptides) | Used in liquid-phase or solid-phase peptide synthesis (SPPS) |
| Chemical R&D | Chiral intermediates for asymmetric synthesis | Applied in chiral catalysis or resolution processes |
| Biochemistry | Structural modification of enzyme inhibitors or probe molecules | Used in organic synthesis or bioconjugation |
| Materials Science | Chiral monomers in polymers or functional materials | Applied in polymerization or functionalization reactions |
Manufacturing Quality Control of 139879-21-3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV | Separation and detection of structurally similar impurities using gradient reversed-phase HPLC with UV monitoring. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents by gas chromatography with flame ionization detection. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine, sulfur dioxide, and a base in methanol to determine water content by stoichiometric reaction. |
| Heavy Metals | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion using inductively coupled plasma optical emission spectrometry. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode to measure chloride ion concentration via precipitation reaction. |
| Optical Rotation | [alpha]D Measurement | Determination of specific rotation using a polarimeter at 20 degrees C with sodium D-line light (589 nm). |
| pH of Solution | pH Meter | Measurement of hydrogen ion activity in a 1% aqueous solution using calibrated glass electrode pH meter. |
| Loss on Drying | Gravimetric Analysis | Weight loss determination after drying at 105 degrees C under vacuum or air until constant mass is achieved. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile inorganic residue remaining after high-temperature ashing at 600-700 degrees C. |
| Microbial Limits | Membrane Filtration | Enumeration of aerobic mesophilic microorganisms using membrane filtration followed by incubation on tryptic soy agar. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size distribution by measuring angular variation in intensity of laser light scattered by suspended particles. |
Technical Specifications of 139879-21-3
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 245-249°C (decomposes) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Optical Rotation | -22.0° to -26.0° (c=1, 1M HCl) |
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 139879-21-3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 139879-21-3
Industrial 139879-21-3 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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