China Factory Direct
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| CAS number | 348-61-8 |
| Product name | 1-Bromo-3,4-difluorobenzene |
| 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 | Preparation of antitumor drug intermediates | Grignard reaction, substitution reaction |
| Agrochemicals | Synthesis of fungicidal intermediates | Alkylation reaction, reduction reaction |
| Materials | Preparation of fluorinated functional material monomers | Nucleophilic substitution reaction, polymerization reaction |
| Dyes | Fluorinated aromatic intermediates for dye synthesis | Sulfonation reaction, coupling reaction |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies 3,4-difluorobromobenzene peak area relative to a calibration curve using an internal or external standard. |
| Residual Solvents | Gas Chromatography (GC) with Headspace sampling | Separates and quantifies volatile organic solvents based on retention time and peak area using calibrated standards. |
| Water Content | Karl Fischer Titration | Measures water via stoichiometric reaction between iodine, sulfur dioxide, and water in a methanol-based reagent. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Determines acidic impurities by titration with standardized sodium hydroxide using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measures non-volatile inorganic residue after high-temperature ashing and cooling in a desiccator. |
| Heavy Metals | ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry) | Quantifies metal contaminants (e.g., Pb, Cd, Hg, As) by atomic emission intensity at element-specific wavelengths. |
| Chloride Impurity | Ion Chromatography (IC) with conductivity detection | Separates and quantifies chloride ions based on retention time and conductivity response relative to calibration standards. |
| Related Substances | High-Performance Liquid Chromatography (HPLC) with UV detection | Identifies and quantifies structurally related impurities using reversed-phase separation and UV absorbance at 254 nm. |
| Color | Visual Comparison or APHA Color Scale | Compares sample color against platinum-cobalt standard solutions under controlled lighting conditions. |
| Density | Digital Density Meter (Oscillating U-tube method) | Determines density from the resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Refractive Index | Refractometry (Abbe refractometer) | Measures refractive index based on critical angle of total internal reflection at the prism-sample interface. |
| Boiling Range | Distillation (Micro-Scale ASTM D1078) | Determines temperature interval over which 90% of sample distills under controlled vacuum and heating rate. |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.535–1.545 |
| Relative Density (20°C/25°C) | 1.62–1.64 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.