2,7-Dibromo-9H-fluoren-9-one Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 14348-75-5 |
| Product name | 2,7-Dibromo-9H-fluoren-9-one |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic GradeReagent 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-9H-fluoren-9-one
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,7-Dibromo-9H-fluoren-9-one 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-9H-fluoren-9-one
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Intermediate for synthesizing fluorescent dyes and optoelectronic materials | Used to introduce aryl or heteroaryl structures via Suzuki coupling, Ullmann coupling, and related reactions for constructing conjugated polymers or small-molecule luminescent materials |
| Optoelectronic Materials | Functional layer material for organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs) | Employed as a building block in polymerization or small-molecule design to tune energy levels, charge carrier mobility, and luminescent properties |
| Analytical Chemistry | Precursor for fluorescent probes or labeling reagents | Modified with functional groups for fluorescent detection of specific ions or molecules in biological or environmental samples |
| Polymeric Materials | High-performance engineering plastics or optoelectronic polymers containing fluorenone moieties | Incorporated into main chains or side chains via condensation or addition polymerization to enhance thermal stability and optoelectronic properties |
Manufacturing Quality Control of 2,7-Dibromo-9H-fluoren-9-one
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase chromatography with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally similar impurities (e.g., mono-brominated, debrominated, or oxidation by-products) via gradient HPLC separation and UV response. |
| Residual Solvents | GC-FID | Separates and quantifies volatile organic solvents (e.g., DMF, THF, toluene) using capillary GC with flame ionization detection against calibrated standards. |
| Water Content | Karl Fischer Titration | Determines trace water by coulometric or volumetric titration based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Heavy Metals | ICP-OES | Measures total elemental metal impurities (e.g., Pb, Cd, Ni, Fe) after acid digestion by plasma excitation and wavelength-specific emission detection. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column with suppressed conductivity detection, following sample dissolution and filtration. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after controlled charring with sulfuric acid and high-temperature incineration, then weighing the residual ash. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity via comparison to literature value (187–189 C). |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles or discoloration against defined specifications (e.g., off-white to pale yellow crystalline powder). |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dry powder using Mie scattering theory applied to laser light diffraction patterns generated by dispersed particles. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume of powder after standardized tapping; used for processability and blending consistency assessment. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Quantifies volatile content (e.g., solvent, moisture) by measuring mass loss under controlled heating (e.g., 105 C, 2 h) in inert atmosphere. |
Technical Specifications of 2,7-Dibromo-9H-fluoren-9-one
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 245–249 °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-9H-fluoren-9-one
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,7-Dibromo-9H-fluoren-9-one
Packaging of 2,7-Dibromo-9H-fluoren-9-one
Industrial 2,7-Dibromo-9H-fluoren-9-one 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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