China Factory Direct
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| CAS number | 22884-31-7 |
| Product name | PENTAMETHYLENEBIS(TRIPHENYLPHOSPHONIUM BROMIDE) |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Chemical | Used as a catalyst or ligand in organic synthesis reactions | Pentamethylenebis(triphenylphosphonium bromide) is applied in various coupling reactions—such as Suzuki–Miyaura coupling and Heck reactions—to facilitate carbon–carbon bond formation. |
| Pharmaceutical | Key intermediate or auxiliary agent in drug synthesis | Leveraged for its effective catalytic properties to enable selective linkage between specific structural units during drug molecule construction, thereby improving yield and selectivity. |
| Materials Science | Additive in functional material preparation | Employed to enhance material performance by controlling polymer chain growth or modifying nanoparticle surface properties. |
| Research | Chemical for laboratory research | Utilized as a research tool to investigate novel catalytic systems and develop greener chemical processes. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Residual Solvents | GC-FID | Separation and quantification of volatile organic solvents by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration using iodine-based reagent to determine water content based on stoichiometric reaction. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element quantification of trace metals after acid digestion, using inductively coupled plasma mass spectrometry. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using suppressed conductivity detection. |
| Residual Palladium | ICP-OES | Quantification of palladium catalyst residue after microwave-assisted acid digestion by inductively coupled plasma optical emission spectrometry. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using controlled heating rate and visual observation of solid-to-liquid phase change. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light and standardized viewing conditions. |
| Loss on Drying | Gravimetric Analysis | Mass loss measurement after drying at specified temperature and time under vacuum or nitrogen atmosphere. |
| pH of Aqueous Suspension | pH Meter | Measurement of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Organophosphorus Content | Phosphomolybdate UV-Vis Spectrophotometry | Oxidation to phosphate followed by formation of phosphomolybdate complex and absorbance measurement at 820 nm. |
| Residual Triphenylphosphine | GC-MS | Separation and identification/quantification of unreacted triphenylphosphine using gas chromatography coupled with mass spectrometry. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% |
| Melting Point | 245-249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.