China Factory Direct
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| CAS number | 31574-87-5 |
| Product name | 2,8-Dibromodibenzothiophene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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 |
|---|---|---|
| Electronic Materials | Charge transport material or dopant in the emissive layer of organic light-emitting diodes (OLEDs) | Applied via vacuum thermal evaporation or solution processing |
| Pharmaceuticals | Intermediate in the synthesis of antitumor or antibacterial agents | Organic synthesis (e.g., Suzuki coupling) |
| Polymeric Materials | Flame retardant additive or monomer for thermally stable polymers | Radical polymerization or condensation polymerization |
| Dyes & Pigments | Precursor for high-performance dyes (e.g., near-infrared absorbing dyes) | Multistep organic synthesis |
| Research Reagents | Model compound for organic semiconductor materials research | Laboratory-scale synthesis |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm, comparing peak area to calibrated standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally similar impurities (e.g., mono-brominated, debrominated, or oxidized analogs) via gradient HPLC-UV. |
| Residual Solvents | GC-FID | Measures trace organic solvents (e.g., toluene, DMF) using gas chromatography with flame ionization detection and external calibration. |
| Water Content | Karl Fischer Titration | Determines water by coulometric or volumetric titration based on iodine consumption in pyridine-free reagent. |
| Heavy Metals | ICP-OES | Quantifies Pb, Cd, Hg, As, Cr using inductively coupled plasma optical emission spectroscopy after acid digestion. |
| Chloride Impurity | Ion Chromatography | Separates and detects chloride ions using suppressed conductivity detection after aqueous extraction. |
| Sulfate Impurity | Ion Chromatography | Separates and detects sulfate ions using suppressed conductivity detection after aqueous extraction. |
| Ash Content | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature incineration at 550-600 C and weighing. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range of solid-to-liquid transition using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of visible particles or discoloration against white/black background under controlled lighting. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using Mie scattering theory and dry/wet dispersion. |
| Bulk Density | ASTM D1895 | Determines mass per unit volume using a calibrated cylinder and tapping procedure per ASTM D1895 Method A. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 142–146 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
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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.