China Factory Direct
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| CAS number | 7012-16-0 |
| Product name | 2,7-Dichlorofluorene |
| 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 |
|---|---|---|
| Pharmaceuticals | Intermediate for drug synthesis | Used to introduce specific functional groups via substitution reactions |
| Optoelectronic Materials | OLED material preparation | Applied as fluorescent dopant or host material in synthesis |
| Analytical Chemistry | Reference standard or reagent | Purified for use as a quantitative analytical reference |
| Dye Industry | Synthesis of specialty dyes | Employed as a raw material in coupling reactions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies 2,7-dichlorofluorene by separation on a reversed-phase column and UV detection at ~254 nm, using external standard calibration. |
| Related Substances | HPLC-DAD | Identifies and quantifies impurities (e.g., mono-chloro isomers, fluorene, polychlorinated by-products) via HPLC with diode array detection and spectral library matching. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., toluene, DMF, acetone) using gas chromatography with flame ionization detection and internal standard calibration. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration based on the stoichiometric reaction of iodine with water in a pyridine/methanol buffer. |
| Heavy Metals | ICP-OES | Measures total elemental impurities (Pb, Cd, Hg, As, Cr, Ni) after acid digestion, using inductively coupled plasma optical emission spectrometry. |
| Chloride Ion Impurity | Ion Chromatography | Quantifies free chloride ions via separation on an anion-exchange column with conductivity detection and standard calibration. |
| Melting Point | Capillary Melting Point Apparatus | Determines purity-dependent solid-to-liquid transition temperature using controlled heating and visual observation of phase change. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles or discoloration against white/black background under controlled lighting. |
| Loss on Drying | Gravimetric Analysis | Measures volatile matter loss by weighing sample before and after drying at specified temperature (e.g., 105 C) under vacuum or nitrogen. |
| Ash Content | Gravimetric Analysis | Determines inorganic residue after high-temperature incineration (e.g., 550 C) followed by cooling and precise weighing. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using angular scattering intensity patterns of a laser beam. |
| pH of Aqueous Slurry | pH Meter | Evaluates acidity/basicity of a saturated aqueous slurry (e.g., 1% w/v) using calibrated pH electrode and standardized buffer reference. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 148–152°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% |
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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.