1,4-Bis(diphenylphosphino)butane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7688-25-7 |
| Product name | 1,4-Bis(diphenylphosphino)butane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 1,4-Bis(diphenylphosphino)butane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,4-Bis(diphenylphosphino)butane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,4-Bis(diphenylphosphino)butane
| Industry | Application | Process |
|---|---|---|
| Chemicals/Catalysis | Ligand for homogeneous catalysts | Serves as a bidentate phosphine ligand to form complexes with transition metals such as rhodium, ruthenium, and palladium for catalytic systems in hydrogenation and hydroformylation reactions. |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Acts as a ligand in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) to catalyze carbon–carbon bond formation for synthesizing complex drug molecules. |
| Fine Chemicals | Hydrogenation of unsaturated compounds | Used as a ligand in rhodium-based catalysts for selective hydrogenation of unsaturated compounds such as alkenes and ketones. |
| Polymer Chemicals | Synthesis of oligomers and polymers | Employed in catalytic systems for polymerization or oligomerization reactions, including catalyst preparation for alkene dimerization or copolymerization. |
| Organic Synthesis | Hydroformylation | Used in combination with rhodium catalysts to modulate catalytic activity and regioselectivity for converting alkenes into aldehydes. |
Manufacturing Quality Control of 1,4-Bis(diphenylphosphino)butane
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and detection of impurities (e.g., mono-substituted analogs, oxidation products) via gradient HPLC-UV against qualified impurity standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify residual solvents (e.g., THF, toluene, methanol) based on calibrated external standards. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine reagent to determine water content by stoichiometric reaction with iodine and sulfur dioxide. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and Ni after acid digestion, using plasma emission spectroscopy with matrix-matched calibration. |
| Chloride Content | Ion Chromatography | Separation and conductivity detection of chloride ions in solution after sample dissolution and dilution, referenced to NaCl calibration standards. |
| Phosphine Oxide Impurity | 1H NMR | Identification and semi-quantitative assessment of phosphine oxide formation by characteristic downfield shift of adjacent methylene protons. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid transition temperature range using calibrated capillary apparatus under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of particulates or phase separation against established visual reference standards. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying under vacuum at 60 C for 2 hours, indicating volatile components and residual solvents. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light at 589 nm to confirm chiral purity and absence of racemization artifacts. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a standardized suspension (e.g., 1% w/v in water) using calibrated pH electrode to detect acidic/basic degradation products. |
Technical Specifications of 1,4-Bis(diphenylphosphino)butane
| Test Item | Specification |
|---|---|
| Appearance | Off-white solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 128–132°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 1,4-Bis(diphenylphosphino)butane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,4-Bis(diphenylphosphino)butane
Safety Information of 1,4-Bis(diphenylphosphino)butane
| Pictograms |   |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1,4-Bis(diphenylphosphino)butane
Industrial 1,4-Bis(diphenylphosphino)butane 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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