China Factory Direct
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| CAS number | 1779-58-4 |
| Product name | (Carbomethoxymethyl)triphenylphosphonium bromide |
| 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) |
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 |
|---|---|---|
| Organic Synthesis | Used as a catalyst or intermediate in Wittig reactions for constructing carbon–carbon double bonds | Reacted with aldehydes or ketones in an inert solvent to generate olefin products |
| Pharmaceutical R&D | Synthesis of specific olefin structural motifs in complex drug molecules | Selectively forms double bonds within multistep synthetic routes to improve efficiency in target molecule construction |
| Polymer Materials | Synthesis of functionalized monomers or polymer precursors | Introduces olefin groups during controlled polymerization or functional modification processes |
| Fine Chemicals | Preparation of key intermediates for fragrances, dyes, and functional chemicals | Enables directed functional group transformation via selective coupling reactions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in anhydrous methanol-based solvent. |
| Residual Solvents | GC-FID | Separation and quantification of volatile organic solvents using capillary GC with flame ionization detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element quantification after acid digestion by inductively coupled plasma mass spectrometry with isotopic detection. |
| Chloride Impurity | Ion Chromatography | Anion separation on a high-capacity column with suppressed conductivity detection. |
| Triphenylphosphine Oxide Impurity | HPLC-UV | Separation and quantification of the main degradation product using optimized reverse-phase HPLC conditions. |
| Appearance (Color and Clarity) | Visual Inspection | Comparison against water-white standard under controlled lighting; absence of visible particles or haze. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range over which solid transitions to liquid using calibrated capillary method. |
| Loss on Drying | Gravimetric Analysis | Weight loss measured after drying at 105 C for 2 hours under vacuum. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized NaOH solution using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile inorganic residue after incineration at 600 C in a platinum crucible. |
| Microbial Contamination | Membrane Filtration | Enumeration of aerobic microorganisms using membrane filtration followed by incubation on soybean-casein digest agar. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 210-215°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Identification (NMR) | Consistent with structure |
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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.