2,7-Dibromo-9,9'-spiro-bifluorene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 171408-84-7 |
| Product name | 2,7-Dibromo-9,9'-spiro-bifluorene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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) |
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Documents We Provide for 2,7-Dibromo-9,9'-spiro-bifluorene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,7-Dibromo-9,9'-spiro-bifluorene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,7-Dibromo-9,9'-spiro-bifluorene
| Industry | Application | Process |
|---|---|---|
| Electronics Industry | Preparation of organic electroluminescent (OLED) materials | Used as a functional material in emissive or charge-transport layers |
| Chemical Industry | Intermediate for synthesizing novel optoelectronic functional materials | Functional group incorporation to optimize performance |
| Pharmaceutical Industry | Intermediate in drug synthesis | Participation in multistep organic synthesis reactions |
| Polymer Materials | Development of high-performance optoelectronic polymers | Incorporation into polymer backbone or side chains via polymerization |
Manufacturing Quality Control of 2,7-Dibromo-9,9'-spiro-bifluorene
| 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, tri-brominated, or des-bromo analogs) using gradient HPLC-UV. |
| Residual Solvents | GC-FID | Separates and quantifies volatile organic solvents (e.g., toluene, DMF, THF) by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine generation in pyridine-free reagent system. |
| Heavy Metals | ICP-MS | Measures trace metal contaminants (e.g., Pd, Ni, Fe, Cu) after acid digestion, using inductively coupled plasma mass spectrometry. |
| Chloride Ion | Ion Chromatography | Quantifies chloride anion by suppressed conductivity detection after separation on anion-exchange column. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, using calibrated capillary apparatus per USP <741>. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic ash content after high-temperature incineration (600–800 C) and weighing of residual residue. |
| Bulk Density | Tap Density Tester | Measures mass per unit volume of freely poured powder, followed by mechanical tapping to determine tapped density. |
| Particle Size Distribution | Laser Diffraction | Analyzes particle size distribution by measuring angular variation in laser light scattering from dispersed sample. |
| Sulfated Ash | Gravimetric Analysis | Quantifies inorganic residue after combustion with sulfuric acid pretreatment, per USP <281>. |
| Optical Rotation | Polarimetry | Measures specific rotation using sodium D-line light to assess chiral purity or absence of optically active impurities. |
Technical Specifications of 2,7-Dibromo-9,9'-spiro-bifluorene
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 265–269 °C |
| Total Impurities | <=2.0% |
| 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 2,7-Dibromo-9,9'-spiro-bifluorene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,7-Dibromo-9,9'-spiro-bifluorene
Safety Information of 2,7-Dibromo-9,9'-spiro-bifluorene
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,7-Dibromo-9,9'-spiro-bifluorene
Industrial 2,7-Dibromo-9,9'-spiro-bifluorene 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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