4-bromo-9,9'-Spirobi[9H-fluorene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1161009-88-6 |
| Product name | 4-bromo-9,9'-Spirobi[9H-fluorene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic 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) |
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Documents We Provide for 4-bromo-9,9'-Spirobi[9H-fluorene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-bromo-9,9'-Spirobi[9H-fluorene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-bromo-9,9'-Spirobi[9H-fluorene
| Industry | Application | Process |
|---|---|---|
| Organic Electronic Materials | Used as hole-transport materials or host materials in the emissive layer of organic light-emitting diodes (OLEDs) | Synthesized into high-performance small-molecule or polymeric functional materials via cross-coupling reactions, such as Suzuki coupling and Buchwald-Hartwig amination |
| Optoelectronic Materials | Employed as host materials for blue phosphorescent or thermally activated delayed fluorescence (TADF) devices | Multi-layer OLED device structures fabricated via vacuum thermal evaporation or solution processing |
| Polymer Chemistry | Utilized as rigid spirocyclic monomers to synthesize optoelectronic polymers exhibiting high glass transition temperatures and excellent thermal stability | Palladium-catalyzed cross-coupling polymerization (e.g., Yamamoto or Suzuki-Miyaura polymerization) |
| Materials Science | Engineered to construct conjugated frameworks with three-dimensional steric hindrance, suppressing fluorescence quenching caused by molecular aggregation | Molecular design and synthesis followed by thin-film formation and device integration |
Manufacturing Quality Control of 4-bromo-9,9'-Spirobi[9H-fluorene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at characteristic wavelength. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities via gradient HPLC separation and UV response. |
| Residual Solvents | GC-FID | Measures volatile organic solvents by gas chromatography with flame ionization detection. |
| Water Content | Karl Fischer Titration | Determines water by coulometric or volumetric titration with iodine-based reagent. |
| Heavy Metals | ICP-MS | Quantifies trace metal contaminants (e.g., Pd, Ni, Fe) using inductively coupled plasma mass spectrometry. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using suppressed conductivity detection. |
| Melting Point | Capillary Melting Point Apparatus | Measures temperature range at which solid transitions to liquid under controlled heating. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of visible particulates or discoloration. |
| Loss on Drying | Gravimetric Analysis | Determines volatile content by measuring mass loss after controlled heating under vacuum or nitrogen. |
| Residue on Ignition | Sulfated Ash Test | Measures non-volatile inorganic residue after high-temperature ignition in presence of sulfuric acid. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution of solid particles in suspension using angular light scattering pattern. |
| Specific Optical Rotation | Polarimetry | Measures rotation of plane-polarized light caused by chiral centers in solution. |
Technical Specifications of 4-bromo-9,9'-Spirobi[9H-fluorene
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (GC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 245–249°C |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 4-bromo-9,9'-Spirobi[9H-fluorene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-bromo-9,9'-Spirobi[9H-fluorene
Packaging of 4-bromo-9,9'-Spirobi[9H-fluorene
Industrial 4-bromo-9,9'-Spirobi[9H-fluorene Procurement FAQ
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.
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