2,2'-DIBROMO-9,9'-SPIROBIFLUORENE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 67665-47-8 |
| Product name | 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic 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) |
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Documents We Provide for 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
| Industry | Application | Process |
|---|---|---|
| Organic Electronic Materials | Intermediate for synthesizing high-performance organic semiconductors, hole-transport materials, or emissive materials | Applied in cross-coupling reactions—such as Suzuki and Ullmann couplings—to construct photoelectric functional molecules with spiro-conjugated architectures |
| Optoelectronic Material R&D | Used to prepare host materials or dopant precursors for blue OLED devices | Functional groups are introduced via metal-catalyzed coupling reactions under inert atmosphere to yield spirofluorene derivatives exhibiting high thermal stability and elevated glass transition temperatures |
| Polymer Chemistry | Rigid monomer for synthesizing functional polymers containing spirofluorene motifs | Polymerized via Yamamoto coupling or Grignard reactions to produce polyfluorene-based polymers with superior thermal stability and optical performance |
Manufacturing Quality Control of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
| 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 reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally similar impurities (e.g., mono-brominated, debrominated, or isomeric by-products) using gradient HPLC separation and UV detection. |
| Residual Solvents | GC-FID | Identifies and quantifies residual organic solvents (e.g., toluene, DMF, THF) by gas chromatography with flame ionization detection using internal standard calibration. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine generated electrochemically or added reagent, based on stoichiometric reaction with water. |
| Heavy Metals | ICP-MS | Measures trace metal impurities (e.g., Pd, Ni, Fe, Cu) after acid digestion by inductively coupled plasma mass spectrometry with isotopic detection. |
| Chloride Content | Ion Chromatography | Quantifies chloride ion impurity using suppressed conductivity detection after anion exchange separation with sodium carbonate/bicarbonate eluent. |
| Ash Content | Gravimetric Analysis | Determines inorganic residue by high-temperature incineration (550-600 C) followed by weighing of the non-volatile residue. |
| Melting Point | Capillary Melting Point Apparatus | Measures temperature range at which solid transitions to liquid using calibrated capillary tube method per USP <741>. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of solid particles in suspension using Mie scattering theory and optical diffraction pattern analysis. |
| Bulk Density | ASTM D1895 | Measures mass per unit volume of freely settled powder using standardized cylinder and tapping procedure. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Quantifies volatile content (excluding water) by measuring mass loss under controlled heating (e.g., 105 C, 2 h) in inert atmosphere. |
| Optical Rotation | Polarimetry | Measures specific rotation of chiral impurities or degradation products using sodium D-line light through a solution in specified solvent and path length. |
Technical Specifications of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (LC-MS) |
| Melting Point | 295-300 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.1% |
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 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
Safety Information of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
Industrial 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE 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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