2,7-Dihydroxy-9-fluorenone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 42523-29-5 |
| Product name | 2,7-Dihydroxy-9-fluorenone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty 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-Dihydroxy-9-fluorenone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,7-Dihydroxy-9-fluorenone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,7-Dihydroxy-9-fluorenone
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Intermediate for fluorescent dyes | Used to synthesize fluorenone derivatives with fluorescent properties; fluorescent brighteners or laser dyes are prepared via sulfonation, amination, and related reactions |
| Materials Science | Precursor for organic optoelectronic materials | Serves as a structural building block for constructing conjugated backbones; incorporated into polymer main chains via Suzuki coupling or Ullmann reaction for OLED emissive layers or OFET semiconductor layers |
| Analytical Chemistry | Matrix for fluorescent probe modification | Converted into metal-ion-selective fluorescent sensing molecules (e.g., for Cu²⁺, Fe³⁺) through chloromethylation followed by amine substitution |
Manufacturing Quality Control of 2,7-Dihydroxy-9-fluorenone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-DAD | Detects and quantifies impurities by HPLC with diode array detection, identifying peaks based on retention time and spectral match. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric titration using iodine-based redox reaction in anhydrous methanol/pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by ignition at 700-800 C followed by weighing of residual residue. |
| Heavy Metals | ICP-OES | Quantifies total heavy metals (e.g., Pb, Cd, Hg, As) after acid digestion using inductively coupled plasma optical emission spectroscopy. |
| Chloride Content | Ion Chromatography | Separates and quantifies chloride ions using suppressed conductivity detection after aqueous extraction. |
| Sulfated Ash | Gravimetric Analysis | Measures non-volatile inorganic residue after treatment with sulfuric acid and ignition at 600-700 C. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating crystallinity and purity. |
| Organic Volatile Impurities | GC-FID | Identifies and quantifies residual solvents using gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using Mie scattering theory. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Determines acidity/basicity of a standardized suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Loss on Drying | Thermogravimetric Analysis | Measures weight loss under controlled heating (e.g., 105 C, 2 h) to determine volatile content including residual solvents and moisture. |
Technical Specifications of 2,7-Dihydroxy-9-fluorenone
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| 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 2,7-Dihydroxy-9-fluorenone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,7-Dihydroxy-9-fluorenone
Packaging of 2,7-Dihydroxy-9-fluorenone
Industrial 2,7-Dihydroxy-9-fluorenone 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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