(R)-(S)-JOSIPHOS Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 155806-35-2 |
| Product name | (R)-(S)-JOSIPHOS |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent 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) |
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Documents We Provide for (R)-(S)-JOSIPHOS
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (R)-(S)-JOSIPHOS Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (R)-(S)-JOSIPHOS
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral ligands for asymmetric synthesis | Used as chiral phosphine ligands in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Negishi) to enable highly enantioselective C–C bond formation |
| Fine chemicals | Asymmetric catalytic synthesis of intermediates | Applied in the synthesis of optically active pharmaceutical or agrochemical molecules via transition-metal-catalyzed hydrogenation, addition, and related reactions |
| Research | Component of chiral catalysts | Employed at laboratory scale to develop novel asymmetric catalytic systems and to investigate structure–performance relationships of ligands |
Manufacturing Quality Control of (R)-(S)-JOSIPHOS
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with Chiral Column | Separation and quantification based on differential retention of enantiomers on a chiral stationary phase. |
| Enantiomeric Excess (ee) | Chiral HPLC | Quantitative comparison of peak areas for (R)- and (S)-enantiomers using a chiral column. |
| Residual Solvents | GC-FID | Volatile organic solvents are separated by gas chromatography and detected by flame ionization. |
| Heavy Metals | ICP-MS | Multi-element detection and quantification of trace metals via inductively coupled plasma mass spectrometry. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via reaction with iodine and sulfur dioxide in pyridine/methanol medium. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Phosphine Oxide Impurity | 31P NMR Spectroscopy | Detection and quantification based on chemical shift differences between phosphine and phosphine oxide species. |
| Residual Palladium | ICP-OES | Quantification of palladium catalyst residue using element-specific atomic emission lines in plasma. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as solid-to-liquid phase change under controlled heating rate. |
| Specific Optical Rotation | [a]D Measurement | Quantification of chiral compound's ability to rotate plane-polarized light at 589 nm. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution of solid particles in suspension. |
| Appearance | Visual Inspection | Subjective assessment of physical state, color, and clarity against established reference standards. |
Technical Specifications of (R)-(S)-JOSIPHOS
| Test Item | Specification |
|---|---|
| Appearance | Orange solid |
| Purity | >=98.0% (HPLC) |
| Optical Rotation | -360° ± 20° (c=1, CHCl3) |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Melting Point | 148°C to 152°C |
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 (R)-(S)-JOSIPHOS
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (R)-(S)-JOSIPHOS
Packaging of (R)-(S)-JOSIPHOS
Industrial (R)-(S)-JOSIPHOS 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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