China Factory Direct
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| CAS number | 4254-20-0 |
| Product name | 4,4'-DICHLOROBENZOIN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeElectronic GradeIndustrial 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 |
|---|---|---|
| Dye Manufacturing | Synthesis of azo dyes | Reacted with aromatic amines to form azo bonds, yielding dye molecules |
| Pharmaceutical Industry | Production of pharmaceutical intermediates | Used as a starting material or intermediate in multistep organic synthesis of certain drugs |
| Pesticide Production | Production of pesticide precursors | Reacted with other chemicals under specific conditions to yield biologically active pesticide components |
| Polymer Materials | Polymer modifier | Applied to enhance polymer properties, such as thermal resistance and mechanical strength |
| Optical Materials | Manufacture of photosensitive resins | Incorporated into photopolymerization systems to leverage its photoinitiating capability for rapid resin curing |
| Catalysis | Catalyst support | Leveraged for immobilizing metal nanoparticles due to its distinctive chemical structure, serving as a catalytic material support |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm, based on peak area comparison against certified reference standard. |
| Related Substances | HPLC-DAD | Detects and quantifies impurities (e.g., starting materials, isomers, dechlorination products) via gradient HPLC with diode-array detection and spectral library matching. |
| Residual Solvents | GC-FID | Measures trace organic solvents (e.g., toluene, ethyl acetate) by gas chromatography with flame ionization detection using headspace sampling. |
| Moisture Content | Karl Fischer Titration | Determines water content volumetrically using iodine-based redox titration in anhydrous methanol/pyridine medium. |
| Heavy Metals (as Pb) | ICP-OES | Quantifies total heavy metals (Pb, Cd, Hg, As) after acid digestion by inductively coupled plasma optical emission spectrometry. |
| Chloride Ion Impurity | Ion Chromatography | Separates and quantifies free chloride ions using suppressed conductivity detection after aqueous extraction. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range of solid-to-liquid transition using calibrated capillary tube method per USP <741>. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled white light against established reference standards. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature ashing (700-800 C) and weighing. |
| Organic Volatile Impurities (OVI) | GC-MS | Identifies and quantifies unknown volatile impurities using gas chromatography coupled with mass spectrometric detection. |
| Bulk Density | Tap Density Tester | Measures mass per unit volume after standardized mechanical tapping per ASTM D1895. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of dry powder using Mie scattering theory and laser diffraction analysis. |
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 142.0 - 146.0 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.3% |
| Residue on Ignition | <=0.1% |
| 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.