China Factory Direct
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| CAS number | 4569-45-3 |
| Product name | 9,9-Dimethyl-9H-fluorene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeElectronic GradeMaterial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Chemical Raw Materials & Intermediates | Synthesis of other organic compounds | Used as starting material or intermediate in various chemical reactions, such as addition and substitution |
| Liquid Crystal Materials | Preparation of liquid crystal materials for liquid crystal displays | Chemically modified to yield compounds exhibiting liquid crystalline properties |
| Fluorescent Dyes | Production of fluorescent labels | Functionalized and grafted via functional group transformations to yield fluorescent dyes suitable for diverse applications |
| Optoelectronic Materials | Manufacture of optoelectronic devices | 9,9-Dimethylfluorene is further processed into luminescent materials or other functional optoelectronic materials |
| Research | Model compound in scientific research | Used directly or after minimal processing as a research tool to investigate new reaction pathways or mechanisms |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination using reverse-phase HPLC and UV absorbance at 254 nm, calibrated against certified reference standard. |
| Appearance | Visual inspection | Assessment of physical state and color against a white background under controlled lighting conditions. |
| Melting Point | Capillary melting point apparatus | Determination of temperature range over which solid transitions to liquid, using calibrated capillary method per USP <741>. |
| Loss on Drying | Gravimetric thermogravimetry | Measurement of mass loss after drying at 105 C for 2 hours under atmospheric pressure. |
| Residue on Ignition | Sulfated ash gravimetry | Determination of inorganic residue after controlled charring and ignition at 700-800 C. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, Cr, Ni, and Cu after acid digestion and plasma excitation. |
| Chloride Content | Potentiometric titration with AgNO3 | Titration with silver nitrate using silver indicator electrode; endpoint detected by potential change. |
| Sulfate Content | Gravimetric precipitation as BaSO4 | Precipitation of sulfate as barium sulfate followed by filtration, drying, and weighing. |
| Water Content | Karl Fischer coulometric titration | Electrochemical generation of iodine to react stoichiometrically with water; quantified by charge consumed. |
| Related Substances | HPLC with diode array detection | Separation and identification of impurities using gradient reverse-phase HPLC and spectral comparison. |
| Organic Volatile Impurities | Headspace GC-FID | Extraction of volatile organics into headspace followed by separation on capillary column and flame ionization detection. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in suspension. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 127–131°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.