4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 161265-03-8 |
| Product name | 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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) |
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Documents We Provide for 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Ligand for transition metal-catalyzed reactions | Used as an efficient ligand in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Negishi, and Heck reactions) to enhance catalyst activity and selectivity |
| Pharmaceutical Industry | Synthesis of intermediates | Employed in constructing complex organic molecular frameworks, particularly as an auxiliary ligand in chiral compound synthesis |
| Materials Science | Preparation of organic functional materials | Integrated into synthesis processes for luminescent or electron-transport materials, serving as a catalytic component to facilitate specific carbon–carbon bond formation |
| Fine Chemicals | Production of high-value-added chemicals | Applied in high-selectivity catalytic processes to improve reaction yield and product purity |
Manufacturing Quality Control of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
| Test Item | Common Test Method | Method Description |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, state, and presence of visible impurities. Typically appears as white to off-white powder without clumping or foreign matter. |
| Purity | HPLC (High-Performance Liquid Chromatography) | Use a reverse-phase C18 column with a UV detector (e.g., 254 nm), and calculate the main component content using peak area normalization or external standard method to evaluate organic purity. |
| Structural Confirmation | NMR Spectroscopy | Confirm the compound structure using 1H NMR and 13C NMR, comparing characteristic peaks with standard spectra; optionally use 31P NMR to verify phosphorus-containing groups. |
| Solvent Residue | Gas Chromatography (GC) | Determine residual organic solvents (e.g., toluene, tetrahydrofuran, ethanol) from the production process, following ICH Q3C guidelines for limit control. |
| Moisture Content | Karl Fischer Titration (KF) | Determine the moisture content in the sample, used to assess hygroscopicity and storage stability, commonly applied in raw material quality control. |
| Melting Point | Melting Point Determination | Determine the melting temperature range using an automatic or capillary melting point apparatus, compare it with literature values (approximately 150–153°C), and assist in judging purity and crystalline form consistency. |
| ash / Inorganic Impurities | Ignition Residue Method (Sulfated Ash) | Weigh the residue after high-temperature ignition to evaluate inorganic impurity content, generally requiring ≤0.1%. |
| Heavy Metals | ICP-MS or Atomic Absorption Spectrometry (AAS) | Detect toxic metal elements such as lead, mercury, cadmium, and arsenic, ensuring safety standards for pharmaceutical or catalytic use. |
| Individual Impurities and Total Impurities | HPLC or UPLC | Separate and quantify individual impurity peaks using high-resolution liquid chromatography, set limits for individual impurities (e.g., ≤0.5%) and total impurities (e.g., ≤1.0%). |
Technical Specifications of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.1% |
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 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
Safety Information of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene
Industrial 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene 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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