4-Bromo-3-methylbenzenesulfonyl chloride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 72256-93-0 |
| Product name | 4-Bromo-3-methylbenzenesulfonyl chloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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-Bromo-3-methylbenzenesulfonyl chloride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Bromo-3-methylbenzenesulfonyl chloride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Bromo-3-methylbenzenesulfonyl chloride
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Used in the synthesis of active pharmaceutical ingredients (APIs), including antitumor agents and kinase inhibitors | Sulfonylation with amines in inert solvents (e.g., dichloromethane) to prepare sulfonamide-based drug molecules |
| Agrochemical Intermediates | Used in the synthesis of novel insecticides, fungicides, and other agrochemicals | Serves as a key intermediate in coupling or nucleophilic substitution reactions to construct active molecular frameworks containing bromomethylbenzenesulfonyl groups |
| Materials Science | Used in the preparation of functional polymers and organic optoelectronic materials | Introduced into conjugated systems via Suzuki or Heck coupling reactions, or employed as a crosslinking agent in specialty polymer synthesis |
Manufacturing Quality Control of 4-Bromo-3-methylbenzenesulfonyl chloride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., isomers, hydrolysis products) relative to main peak using gradient HPLC-UV. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents (e.g., dichloromethane, toluene) by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the stoichiometric reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities (e.g., sulfonic acids) with standardized NaOH solution using phenolphthalein indicator. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using silver/silver chloride electrode to detect endpoint via potential change. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, Cr after acid digestion, based on atomic emission intensity at element-specific wavelengths. |
| Sulfate Residue | Gravimetric Analysis | Precipitation of sulfate as BaSO4 under controlled conditions, followed by drying and weighing of the precipitate. |
| Melting Point | Capillary Melting Point Determination | Thermal transition observed visually or automatically as solid transforms to liquid in a calibrated capillary apparatus. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of visible particles or discoloration against white/black background under controlled lighting. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity vs. scattering angle to determine volume-based particle size distribution. |
| Bulk Density | Tap Density Measurement | Mass per unit volume determined by measuring the volume occupied by a known mass after standardized tapping. |
Technical Specifications of 4-Bromo-3-methylbenzenesulfonyl chloride
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 75–79 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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-Bromo-3-methylbenzenesulfonyl chloride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Bromo-3-methylbenzenesulfonyl chloride
Safety Information of 4-Bromo-3-methylbenzenesulfonyl chloride
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4-Bromo-3-methylbenzenesulfonyl chloride
Industrial 4-Bromo-3-methylbenzenesulfonyl chloride 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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