9,9'-Spirobi[9H-fluorene] Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 159-66-0 |
| Product name | 9,9'-Spirobi[9H-fluorene] |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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 9,9'-Spirobi[9H-fluorene]
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 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 9,9'-Spirobi[9H-fluorene]
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Intermediate | Used in the synthesis of other organic compounds |
| Electronic Materials | Luminescent Material | Applied in the fabrication of emissive layers for organic light-emitting diodes (OLEDs) |
| Electronic Materials | Polymer Stabilizer | Enhances thermal stability and electrical performance of polymer materials in electronic devices |
| Optical Materials | Photochromic Material | Used to prepare materials that reversibly change color upon exposure to specific wavelengths of light |
| Pharmaceuticals | Biomarker | Serves as a fluorescent label for detection of biomolecules |
| Materials Science | Polymer Modification | Improves optical and electrical properties of polymeric materials |
| Optoelectronic Materials | Dye-Sensitized Solar Cell Material | Acts as a photosensitizing dye in dye-sensitized solar cells |
Manufacturing Quality Control of 9,9'-Spirobi[9H-fluorene]
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase chromatography with UV detection at 290-310 nm based on peak area comparison to reference standard. |
| Related Substances | HPLC-UV | Separates and quantifies structurally similar impurities (e.g., mono-fluorene, fluorenone derivatives) using gradient elution and UV detection. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., toluene, THF, DMF) by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine-based redox reaction in anhydrous methanol/pyridine medium. |
| Heavy Metals | ICP-OES | Measures total elemental impurities (e.g., Pb, Cd, Ni, Fe) after acid digestion by optical emission spectroscopy at characteristic wavelengths. |
| Chloride Content | Ion Chromatography | Quantifies chloride ions released during sample alkaline fusion or extraction using suppressed conductivity detection. |
| Ash Content | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature incineration (550-600 C) and weighing of residual ash. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube under controlled heating rate. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of visible particulates or discoloration against white/black background under controlled lighting. |
| Bulk Density | ASTM D1895 | Measures mass per unit volume of freely settled powder using standardized graduated cylinder and balance. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution of dry powder via Mie scattering pattern of laser beam passed through dispersed sample. |
| Residue on Ignition | Gravimetric Analysis | Determines non-volatile residue after ignition at 700-750 C for specified duration, expressed as weight percent of original sample. |
Technical Specifications of 9,9'-Spirobi[9H-fluorene]
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 123–127°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
| 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 9,9'-Spirobi[9H-fluorene]
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 9,9'-Spirobi[9H-fluorene]
Packaging of 9,9'-Spirobi[9H-fluorene]
Industrial 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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