China Factory Direct
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| CAS number | 652-39-1 |
| Product name | 3-Fluorophthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeElectronic GradeMaterial 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 | Synthesis of antitumor agents and antibiotic intermediates | Acylation and condensation reactions |
| Agrochemicals | Production of active ingredients for fluorinated insecticides and herbicides | Fluorination and esterification reactions |
| Dyes & Pigments | Key intermediates for fluorescent dyes and high-performance pigments | Condensation and sulfonation reactions |
| Electronic Materials | Monomer for high-temperature-resistant polymers such as polyimides; enhances dielectric properties | Polymerization and thermal imidization |
| Organic Synthesis | Building block for synthesizing fluorinated aromatic compounds | Nucleophilic substitution and catalytic coupling |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantification by reversed-phase HPLC with UV detection at 220 nm using external standard calibration. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after high-temperature ashing at 750 C. |
| Heavy Metals | ICP-OES | Multi-element quantification of metallic impurities (e.g., Pb, Fe, Cu) after acid digestion and plasma emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract using anion-exchange column. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection for volatile organic solvents (e.g., acetone, toluene). |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition temperature using calibrated capillary tube method. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of visible particulates or discoloration against white background under controlled lighting. |
| Particle Size Distribution | Laser Diffraction | Measurement of size distribution of dry powder sample via light scattering pattern analysis. |
| Specific Optical Rotation | Polarimetry | Determination of chiral purity by measuring rotation angle of plane-polarized light in solution at specified concentration and wavelength. |
| Volatile Matter | Thermogravimetric Analysis (TGA) | Weight loss measurement upon controlled heating to 150 C under nitrogen atmosphere to quantify volatiles. |
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 142–146°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| 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.