4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 139937-37-4 |
| Product name | 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-BROMO-2-METHYLBENZENE-1-SULFONYL 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-2-METHYLBENZENE-1-SULFONYL CHLORIDE
| Industry | Application | Process |
|---|---|---|
| Pesticides | Synthesis of pesticide intermediates | Used as an aromatic acid chloride to construct complex molecular frameworks containing bromo and methyl substituents, participating in multistep synthesis reactions |
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used in organic synthesis to introduce sulfonyl chloride groups, which are subsequently converted into sulfonamide-based or sulfur-containing active pharmaceutical ingredients |
| Polymers | Synthesis of functional monomers | Applied as a polymer chain modifier, enabling functionalization via reaction of the sulfonyl chloride group with amino or hydroxyl groups |
| Dyes & Pigments | Dye intermediates | Employed in the synthesis of azo or thiazole dyes, imparting specific spectral properties and chemical stability |
| Organic Synthesis | General reagent | Acts as an electrophilic acylating agent for sulfonation of aromatic rings, facilitating construction of complex organic molecular frameworks |
Manufacturing Quality Control of 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 254 nm, based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies impurities (e.g., isomers, hydrolysis products) via gradient HPLC with UV detection and relative response factor correction. |
| Residual Solvents | GC-FID | Measures volatile organic solvents (e.g., dichloromethane, toluene) using gas chromatography with flame ionization detection and internal standard calibration. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration with iodine generated electrochemically in presence of water. |
| Acid Value | Acid-Base Titration | Measures free acid content (e.g., from hydrolyzed sulfonyl chloride) via titration with standardized NaOH solution using phenolphthalein indicator. |
| Chloride Content | Ion Chromatography (IC) | Quantifies inorganic chloride ions (e.g., from hydrolysis or salt impurities) using suppressed conductivity detection after anion separation. |
| Heavy Metals | ICP-OES | Determines total heavy metal content (Pb, Cd, Hg, As, Cr) by plasma excitation and elemental emission intensity measurement. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity via thermal behavior. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled lighting and against white background. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using angular scattering pattern of laser beam. |
| Bulk Density | ASTM D1895 | Determines mass per unit volume of freely settled powder using calibrated cylinder and balance. |
| Sulfonyl Chloride Functionality | Potentiometric Titration with n-Butylamine | Quantifies reactive -SO2Cl groups by stoichiometric reaction with primary amine followed by potentiometric endpoint detection. |
Technical Specifications of 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 92.0–96.0°C |
| Identification (NMR) | Conforms to reference standard |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 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-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
Safety Information of 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4-BROMO-2-METHYLBENZENE-1-SULFONYL CHLORIDE
Industrial 4-BROMO-2-METHYLBENZENE-1-SULFONYL 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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