China Factory Direct
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| CAS number | 76903-88-3 |
| Product name | 3,4-Difluorobenzoyl chloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 | Key intermediate for synthesizing antitumor, antiviral, and central nervous system drugs | Used to construct amide or ester linkages via condensation reactions between the acid chloride group and amines or alcohols |
| Agrochemicals | Used to synthesize fluorinated benzamide-based insecticides or herbicides | Serves as a precursor for introducing the 3,4-difluorobenzoyl group onto aromatic rings, participating in nucleophilic substitution or coupling reactions |
| Materials Science | Monomer for producing high-performance fluorinated polymers or liquid crystal materials | Undergoes interfacial or solution polycondensation with bisphenol- or polyamine-based monomers to form polyamide or polyester structures |
| Organic Synthesis | Fluorinated aromatic acylating reagent | Introduces the 3,4-difluorobenzoyl functional group in Friedel-Crafts acylation, Suzuki coupling, and related reactions |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| 3,4-Difluorobenzoic Acid (Hydrolysis Impurity) | High-Performance Liquid Chromatography (HPLC) with UV detection | Separation and quantification of the hydrolyzed acid impurity using reversed-phase C18 column and UV absorbance at 254 nm. |
| Residual Solvents (e.g., Dichloromethane, Toluene) | Headspace Gas Chromatography (HS-GC) with FID | Volatile solvent residues are equilibrated in headspace vial and quantified by GC-FID using external calibration. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected amperometrically. |
| Acidity (as HCl) | Acid-Base Titration with NaOH standard solution | Free HCl formed from trace hydrolysis is titrated potentiometrically or with indicator using standardized sodium hydroxide solution. |
| Color | Visual Comparison against Hazen (APHA) Scale | Sample color intensity is assessed by visual comparison to platinum-cobalt standard solutions under controlled lighting. |
| Density at 20 degC | Digital Density Meter (Oscillating U-tube) | Density determined by measuring the resonant frequency shift of a vibrating U-shaped glass tube filled with sample. |
| Refractive Index at 20 degC | Digital Refractometer | Refractive index measured via critical angle of total internal reflection at the prism-sample interface. |
| Non-Volatile Residue | Gravimetric Analysis (Evaporation and Weighing) | Sample is evaporated to dryness under controlled conditions and residue mass is determined by precision weighing. |
| Heavy Metals (as Pb) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | After acid digestion, metals are atomized and excited in plasma; emission intensities at characteristic wavelengths are quantified. |
| Chloride Ion (Cl-) | Ion Chromatography (IC) with Conductivity Detection | Chloride ions are separated on an anion-exchange column and detected by suppressed conductivity measurement. |
| Residual Catalyst (e.g., Fe, Cu) | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After microwave-assisted acid digestion, elemental concentrations are measured via mass-to-charge ratio detection with high sensitivity. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
| Refractive Index (n20/D) | 1.535–1.545 |
| Relative Density (20°C/25°C) | 1.32–1.34 g/cm³ |
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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.