4-Toluenesulfonyl bromide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1950-69-2 |
| Product name | 4-Toluenesulfonyl bromide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/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) |
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Documents We Provide for 4-Toluenesulfonyl bromide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Toluenesulfonyl bromide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Toluenesulfonyl bromide
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as an organic synthesis intermediate for producing sulfonamide drugs and other active pharmaceutical ingredients containing sulfonyl groups | Reacted with amines under basic conditions to form sulfonamides |
| Agrochemicals | Used as an agrochemical intermediate in the synthesis of biologically active sulfonylurea herbicides | Sulfonyl group introduced via nucleophilic substitution |
| Materials Science | Used to prepare functional polymeric materials or liquid crystal monomers | Applied as a sulfonylating agent to modify aromatic compounds |
| Organic Synthesis | Used as a sulfonylating agent for hydroxyl or amino group protection, or for C–S bond construction | Reacted with alcohols, phenols, or amines to yield corresponding sulfonate esters or sulfonamides |
Manufacturing Quality Control of 4-Toluenesulfonyl bromide
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard under optimized chromatographic conditions. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in a methanol-based solvent system. |
| Residual Solvents | Gas Chromatography (GC) with Headspace sampling | Separation and quantification of volatile organic solvents using headspace equilibrium and GC-FID detection. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Neutralization of acidic impurities by standardized sodium hydroxide solution, using phenolphthalein indicator. |
| Bromide Ion Impurity | Ion Chromatography (IC) with conductivity detection | Separation and quantification of bromide ions on an anion-exchange column with suppressed conductivity detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element detection after acid digestion, based on element-specific atomic emission intensities in inductively coupled plasma. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using capillary tube method per USP <741> or ASTM D1565. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of visible particulates or discoloration against established reference standards. |
| Organic Volatile Impurities (e.g., benzene, chloroform) | GC-MS | Identification and quantification of trace volatile organics using mass spectral library matching and external calibration. |
| Sulfonic Acid Derivative Impurity | HPLC with UV detection | Separation on reversed-phase C18 column and quantification at 254 nm using reference standard calibration. |
| Residue on Ignition | Gravimetric Analysis | Weighing residue remaining after high-temperature ashing to determine non-volatile inorganic impurities. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution to detect chiral impurities or degradation products. |
Technical Specifications of 4-Toluenesulfonyl bromide
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 78.0–82.0 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 4-Toluenesulfonyl bromide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 4-Toluenesulfonyl bromide
Industrial 4-Toluenesulfonyl bromide Procurement FAQ
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.
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