China Factory Direct
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| CAS number | 198964-46-4 |
| Product name | 9,9-Dioctyl-2,7-dibromofluorene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial GradeIndustrial 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 |
|---|---|---|
| Organic Electronic Materials | Hole transport layer (HTL) material for organic light-emitting diodes (OLEDs) | Thin-film deposition via vacuum thermal evaporation or solution spin-coating; used as an HTL component to synergistically optimize carrier injection and transport with materials such as TPD and NPB |
| Organic Electronic Materials | Donor material intermediate for polymer solar cells (PSCs) | Incorporated into copolymerization via Suzuki or Stille coupling reactions to construct wide-bandgap conjugated polymer backbones (e.g., copolymerized with benzothiadiazole units) |
| Organic Electronic Materials | Interfacial modification layer for perovskite solar cells | Solution-processed interfacial layer that passivates surface defects of perovskite films and tunes energy-level alignment, thereby enhancing open-circuit voltage and device stability |
| Fine Chemicals | Synthesis precursor for high-performance fluorene-based liquid crystal monomers | Selective metalation (e.g., with n-BuLi) at the bromo group, followed by nucleophilic addition to aldehydes/ketones and subsequent dehydration cyclization to yield fluorene-core liquid crystal molecules |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison against a certified reference standard using UV detection at appropriate wavelength. |
| Residual Solvents | GC-FID | Separation and quantification of volatile organic solvents by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in presence of water and base. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element detection of trace metals after acid digestion, based on atomic emission intensities at characteristic wavelengths. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Residual Catalyst (Pd) | ICP-MS | Ultra-trace detection of palladium via mass spectrometry after microwave-assisted acid digestion. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by observing solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against established visual standards under controlled lighting. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying sample at specified temperature and time under vacuum or inert atmosphere. |
| Bromine Content | Oxygen Flask Combustion followed by Potentiometric Titration | Total bromine converted to bromide by combustion, then titrated with silver nitrate using potentiometric endpoint detection. |
| Organic Impurities (Related Substances) | HPLC-DAD | Detection and semi-quantification of structurally related compounds using diode array detection across multiple wavelengths. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity as function of angle to determine size distribution of solid particles in suspension. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 142–146 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=10 ppm |
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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.