China Factory Direct
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| CAS number | 990-91-0 |
| Product name | Tetrabenzyl pyrophosphate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty 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 |
|---|---|---|
| Chemical Synthesis | Organic synthesis intermediate for preparing phosphorus-containing compounds | Used as a benzylating agent in nucleophilic substitution reactions |
| Pharmaceutical R&D | Precursor for synthesizing biologically active phosphate esters | Introduces the benzyl pyrophosphate structural motif during drug molecule construction |
| Materials Science | Research precursor for flame retardants or functional additives | Generates phosphate derivatives with flame-retardant properties via thermal decomposition or hydrolysis |
| Detection Item | Common Detection Method | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Using a gas chromatograph (GC) equipped with a flame ionization detector (FID), the purity of tetraphenyl phosphate is quantitatively analyzed by comparing retention time and peak area with a standard reference. This method is suitable for the qualitative and quantitative analysis of volatile organic compounds. |
| Content Determination | HPLC (High-Performance Liquid Chromatography) | A reverse-phase HPLC system with a C18 column and a UV-Vis detector at 254 nm or 260 nm is used to detect tetraphenyl phosphate. The content is calculated using an external standard or internal standard method, which offers high sensitivity and good reproducibility. |
| Structural Identification | Nuclear Magnetic Resonance Spectroscopy (NMR) | ¹H NMR and ¹³C NMR can be used to confirm the molecular structure of tetraphenyl phosphate, providing chemical shift, coupling constant, and integral information. It is considered the gold standard for confirming the structure of a compound. |
| Molecular Weight Determination | Mass Spectrometry (MS) | Electrospray Ionization Mass Spectrometry (ESI-MS) or Electron Impact Ionization Mass Spectrometry (EI-MS) is used to determine the molecular ion peak ([M]⁺), verifying whether the molecular formula matches C₁₆H₁₈O₄P₂ and assisting in structural confirmation. |
| Residual Solvent | Gas Chromatography (GC) | The headspace injection or direct injection method is used to detect residual organic solvents (e.g., acetonitrile, toluene, dichloromethane) introduced during synthesis, complying with ICH Q3A requirements. |
| Moisture Content | Karl Fischer Titration (KF) | The moisture content in the sample is determined using a volumetric or coulometric Karl Fischer titrator. This method is suitable for organic phosphorus compounds sensitive to moisture, ensuring product stability. |
| Ash/Inorganic Impurities | Combustion Method (High-Temperature Ashing) | The sample is combusted at high temperature (approximately 500–600 °C) until constant weight is achieved, determining the content of inorganic residue and assessing the level of inorganic impurities introduced from raw materials or synthesis processes. |
| Melting Point Determination | Micro Melting Point Apparatus | The melting behavior of the sample is observed using a micro melting point apparatus to determine the melting range (typically 110–120 °C), used to assess purity and consistency of crystal morphology. |
| UV Absorption Characteristics | UV-Visible Spectroscopy (UV-Vis) | A scan is performed between 200–400 nm to obtain characteristic absorption peaks (e.g., ~254 nm), used for preliminary identification and quality consistency assessment. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.5%(HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Melting Point | 75-79°C |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=20 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.