China Factory Direct
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| CAS number | 145758-05-0 |
| Product name | 3,4-DIFLUOROBENZENESULFONYL 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 | Intermediate in the synthesis of fluorinated pharmaceuticals | Reaction of the sulfonyl chloride group with amines to form sulfonamides |
| Agrochemicals | Intermediate in the synthesis of pesticide active ingredients | Introduction of the sulfonyl chloride group via substitution reaction |
| Materials | Functional polymer modifier | Covalent bonding via the sulfonyl chloride group |
| Dyes | Structural building block in specialty dye synthesis | Sulfonyl chloride participates in condensation reactions to form dye molecules |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| 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. |
| Related Substances | High Performance Liquid Chromatography (HPLC) with UV detection | Separation and quantification of impurities by retention time and UV absorbance relative to the main peak. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) with FID | Volatile solvent residues are vaporized in sealed vials and analyzed by GC after equilibrium partitioning into headspace. |
| Moisture Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected amperometrically. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Neutralization of acidic impurities (e.g., sulfonic acids) using standardized sodium hydroxide and potentiometric endpoint detection. |
| Chloride Content | Potentiometric Titration with AgNO3 | Precipitation of chloride ions as AgCl; endpoint detected by change in potential of silver indicator electrode. |
| Heavy Metals (Pb, Cd, Hg, As) | Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) | Sample digested in acid matrix, then atomized and excited in plasma; elemental concentrations determined from characteristic emission wavelengths. |
| Sulfur Content | Combustion Ion Chromatography (CIC) | Complete combustion converts sulfur to sulfate, which is measured by ion chromatography with suppressed conductivity detection. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically as solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual Inspection (against white/black background) | Assessment of physical state, color, and presence of particulates or phase separation in solid or molten sample. |
| Bulk Density | Tap Density Tester (ASTM D1895) | Mass per unit volume measured after standardized tapping of a known mass in a graduated cylinder. |
| Particle Size Distribution | Laser Diffraction (Dry Dispersion) | Analysis of angular scattering pattern of laser light passed through dispersed particles to calculate size distribution by Mie theory. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light orange to yellow clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
| Refractive Index (n20/D) | 1.520–1.540 |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Danger |
| Safety Data Sheet | |
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.