(S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 76189-56-5 |
| Product name | (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical 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 (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Used as a chiral ligand in asymmetric catalytic reactions | Coordinates with transition metals such as rhodium, ruthenium, and palladium to induce enantioselectivity in asymmetric hydrogenation, coupling, and addition reactions |
| Pharmaceutical Industry | Used in the synthesis of chiral drug intermediates | Serves as a key ligand in the asymmetric synthesis of chiral molecules, including antibiotics, antiviral agents, and neuroactive compounds |
| Agrochemical Industry | Used in the synthesis of high-performance chiral pesticides | Enhances enantiomeric purity in the catalytic synthesis of chiral pyrethroids and other stereoselective agrochemicals |
| Materials Science | Used in the preparation of chiral functional materials | Acts as a chiral inducer in the construction of chiral polymers or metal–organic frameworks (MOFs) |
| Research Institutions | Used in the development of organic synthetic methodologies | Serves as a standard chiral bisphosphine ligand for screening new catalytic systems and mechanistic studies |
Manufacturing Quality Control of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, state, and visible impurities of the sample. Typically appears as a white to off-white crystalline powder. |
| Purity (Chemical Purity) | High-Performance Liquid Chromatography (HPLC) | Use a reverse-phase or normal-phase HPLC system, compare retention time and peak area with standard samples to determine the content of the main component and the level of impurities. |
| Enantiomeric Purity (ee value) | Chiral High-Performance Liquid Chromatography (Chiral HPLC) | Use a chiral stationary phase column to separate enantiomers, calculate the ratio of peak areas between (S)- and (R)-isomers to determine enantiomeric excess (ee). |
| Melting Point | Melting Point Determination (Capillary Method or DSC) | Determine the melting temperature range to preliminarily assess purity and consistency. The typical melting point range is approximately 238–242 °C. |
| Infrared Spectroscopy (IR) | Fourier Transform Infrared Spectroscopy (FT-IR) | Confirm functional groups in the molecular structure (such as P-Ph bonds and binaphthyl framework) through characteristic absorption peaks for structural confirmation. |
| Nuclear Magnetic Resonance (NMR) | ¹H NMR and ³¹P NMR | ¹H NMR is used to verify hydrogen signals of aromatic rings and binaphthyl; ³¹P NMR is used to confirm the chemical shift of the phosphorus center, which is a key method for structural confirmation. |
| Elemental Analysis (EA) | Elemental Analyzer | Determine the measured content of C, H, and P elements, and compare with theoretical values to verify the composition and purity of the compound. |
| Moisture Content | Karl Fischer Titration | Determine the water content in the sample to control the activity and stability of the raw material in catalytic applications. |
| Residual Solvents | Gas Chromatography (GC) | Detect residual organic solvents (such as toluene, ethanol, THF, etc.) from the synthesis process, meeting pharmacopoeia or process requirements. |
| Heavy Metal Content | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) or Atomic Absorption Spectroscopy (AAS) | Detect metal impurities such as lead, palladium, and nickel, especially focusing on catalyst residues (e.g., Pd), which is crucial for subsequent catalytic reactions. |
Technical Specifications of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC), >=99% ee |
| Optical Rotation | -220.0 to -245.0 deg (c=1, CHCl3) |
| Melting Point | 250 to 255 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
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 (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
Safety Information of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl
Industrial (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl 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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