China Factory Direct
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| CAS number | 29074-98-4 |
| Product name | Diethyl 2-chlorobenzylphosphonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25L/drum |
| 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 |
|---|---|---|
| Pharmaceutical Chemicals | Synthesis raw material for 1-tetralone (or tetralone derivatives), a key intermediate in the antidepressant sertraline hydrochloride | Wittig reaction (or Horner–Wadsworth–Emmons reaction) with cyclohexanone derivatives under basic conditions, followed by hydrolysis and cyclization to form the tetralone structure |
| Agrochemicals | Synthetic intermediate for active ingredients in insecticides, fungicides, and other agrochemicals | Organic synthesis reaction leveraging the phosphonate group to construct carbon–carbon double bonds |
| Organic Synthesis | Preparation of olefin compounds | Horner–Wadsworth–Emmons (HWE) reaction, using the phosphonate reagent to react with aldehydes or ketones to generate olefins |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component by retention time and peak area against a calibrated standard. |
| Related Substances | Gas Chromatography (GC) with FID or MS detection | Separates and detects impurities based on volatility and retention behavior relative to the main compound. |
| Residual Solvents | Gas Chromatography (GC) with headspace sampling | Measures volatile organic solvents (e.g., ethanol, dichloromethane) using partition equilibrium and GC separation. |
| Chloride Content | Potentiometric titration with silver nitrate | Determines chloride ions via precipitation titration monitored by silver ion-selective electrode. |
| Acidity (as HCl) | Acid-base titration with NaOH | Neutralizes acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Water Content | Karl Fischer titration | Electrochemically quantifies water via iodine-sulfur dioxide reaction in anhydrous methanol-based reagent. |
| Heavy Metals | ICP-OES | Measures trace metal elements (e.g., Pb, Cd, Hg) after acid digestion by atomic emission intensity at characteristic wavelengths. |
| Appearance | Visual inspection | Assesses physical state, color, and clarity against standard reference under controlled lighting conditions. |
| Density | Digital densitometer | Determines mass per unit volume at specified temperature using oscillating U-tube principle. |
| Refractive Index | Refractometry | Measures bending of light through sample at 20 degrees C to infer purity and consistency. |
| Boiling Point | Capillary boiling point apparatus | Determines temperature range at which vapor pressure equals atmospheric pressure under reduced pressure. |
| Phosphorus Content | UV-Vis spectrophotometry after molybdenum blue reaction | Oxidizes organic phosphorus to orthophosphate, forms colored complex with molybdate for absorbance measurement. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference standard |
| Refractive Index (n20/D) | 1.525–1.535 |
| Relative Density (20°C/25°C) | 1.16–1.18 g/cm³ |
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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.