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HS Code |
701620 |
| Chemical Name | 2-Bromobenzenesulfonamide |
| Cas Number | 6008-58-0 |
| Molecular Formula | C6H6BrNO2S |
| Molecular Weight | 236.09 |
| Appearance | White to off-white solid |
| Melting Point | 120-124 °C |
| Solubility | Slightly soluble in water |
| Smiles | NS(=O)(=O)c1ccccc1Br |
| Inchi | InChI=1S/C6H6BrNO2S/c7-5-3-1-2-4-6(5)11(8,9)10/h1-4H,8H2 |
| Pubchem Cid | 18305 |
| Storage Conditions | Store at room temperature, keep container tightly closed |
As an accredited 2-Bromobenzenesulfonamide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 25g amber glass bottle with a secure screw cap, labeled "2-Bromobenzenesulfonamide, 99% min, CAS 609-17-4, Keep dry." |
| Shipping | 2-Bromobenzenesulfonamide is shipped in secure, airtight containers to prevent moisture and contamination. Proper labeling in accordance with regulations is ensured, including hazard identification. The chemical is handled by qualified personnel, with shipments typically transported via ground or air freight using packaging compliant with international and local chemical transport regulations. |
| Storage | 2-Bromobenzenesulfonamide should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizing agents. Keep the container tightly closed when not in use. Store at room temperature, avoiding exposure to moisture, heat, and direct sunlight to maintain stability and prevent decomposition. Use appropriate chemical storage protocols and label containers clearly. |
Applications of 2-Bromobenzenesulfonamide in Industrial ManufacturingAs a direct manufacturer of 2-Bromobenzenesulfonamide, we supply customers who integrate this specialty intermediate into advanced downstream processes. Its reactivity, purity, and well-documented performance enable use across specific sectors with strict compliance and formulation requirements. Below are the major industrial applications adopted by leading manufacturers. 1. Pharmaceutical Sulfonamide SynthesisLarge-scale pharmaceutical producers use 2-Bromobenzenesulfonamide to introduce sulfonamide and halogen functionalities in API development, particularly for second-generation sulfonamide antibacterial synthesis and specialty heterocyclic scaffolds. Its structural features support selective amination, further halogenation, or subsequent coupling to construct key drug intermediates at industrial scale, adhering to strict regulatory expectations for raw material traceability and process control throughout the commercial manufacturing pipeline. Industry compliance standards
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2. Agrochemical Intermediate ManufacturingProducers in the agrochemical sector rely on 2-Bromobenzenesulfonamide as an intermediate for synthesizing specialty herbicides, selective pesticides, and fungicides. Its strong electron-withdrawing properties allow for precise introduction of substituents onto aromatic rings, crucial in constructing active ingredient backbones with targeted biological activity and soil stability. The material features high conversion rates and consistent reactivity under pilot and commercial formulation scales. Industry compliance standards
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3. Dye and Pigment Intermediate UpgradingManufacturers serving the specialty dye segment employ this chemical as a key intermediate for introducing sulfonamide function into high-performance azo and anthraquinone pigments. Its controlled addition impacts color shade, solubility, and affinity for fibers. Batch and continuous processes depend on purity to avoid undesired color by-products, making it particularly suited for water-soluble dye systems where both bromination and sulfonamide content must be tightly managed. Industry compliance standards
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4. Advanced Materials for Electronics ProcessingChemical companies preparing microelectronic or specialty polymer materials utilize 2-Bromobenzenesulfonamide to provide aromatic sulfonamide groups essential for dielectric and photoresist polymers. The compound’s high electrophilicity and controlled reactivity allow precise functionalization Important for cross-linking mechanisms in negative-tone photoresists, and provide performance advantages in ultraviolet lithography and high-performance coatings where dielectric constant and water uptake must be carefully controlled for device reliability. Industry compliance standards
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Manufacturing 2-Bromobenzenesulfonamide isn’t just about chemical equations or lab glassware—it is a balance of daily challenges and learned routines. At our site, we watch each crystallization step, control every bit of temperature and pH, and measure yields in real time. Anyone who’s worked with aromatic sulfonamides knows the specifics matter: a small shift during bromination can change your outcome. This fine work delivers a white to slightly off-white solid, recognized by its CAS number 103-11-5 and systematic name. Seasoned chemists will spot the differences during quality checks; cloudiness signals issues during purification, and that’s something you just don’t overlook.
Our product typically arrives at a high standard of purity—most batches reach upwards of 98% on an area normalization basis. We document each lot and maintain production logs, which help us keep impurities under control and batch consistency high. With repeat customers in pharma labs and specialty synthesis shops, it’s not the flashy molecule that gets all the attention. Instead, our consistency, the reliability of supply, and our approach to every batch are what stand out.
This material fills a niche. In nucleophilic substitution reactions, 2-Bromobenzenesulfonamide functions as a highly selective starting material or building block. Chemists value its reactivity in cross-coupling or Suzuki coupling, where the ortho-bromo position provides an anchor for palladium-catalyzed steps. For folks developing drug intermediates, this specificity saves time and cost—wrong substitution on the ring can put an entire project at risk.
Sulfonamides hold a respected spot in medicinal chemistry. They’ve been incorporated in several pharmaceuticals as protecting groups or intermediates. Our own interactions with R&D teams confirm that bromine at the second position opens doors to regioselective synthesis strategies, so scale-up teams can follow clear, predictable routes rather than constantly adjusting procedures.
After years of refining our process, we’ve pushed out many of the common contaminants—mono- and dibromo byproducts get flagged right away by HPLC. Unchecked, these contaminants complicate downstream reactions, affect yields, and lead to rework. Our attention to these details makes a real difference on customers’ benches.
We regularly communicate with users to identify reaction conditions and storage protocols that preserve integrity. Whenever higher performance is required—greater purity, tighter control on moisture, smaller particle size—we gather feedback firsthand, running pilot-scale batches to validate improvements. It is not enough to meet specification sheets; real-world reactivity and shelf stability decide whether or not a batch is truly fit for purpose.
Handling halogenated aromatic sulfonamides demands more caution than routine chemicals. The experience of our operators has shaped our procedures—ventilation design, personal protection policies, and training have grown stricter through lessons learned. Bromine sources bring their own hazards, and we take leak-prevention and containment as basic requirements, not afterthoughts.
Each drum leaves the plant accompanied by comprehensive lot data, emphasizing batch traceability and forensic-level documentation of each critical control point. We never dismiss the history attached to each unit sent out—if a customer notices an unexpected result, the answer is usually somewhere in those logs.
Every few months, new requests surface: a research client asks for extra-large lots while maintaining strict handling limits for dust and fines, or a custom syntheses firm attempts to swap in 2-Bromobenzenesulfonamide for a related substrate. Occasionally, someone seeks a custom specification, chasing a color change, solubility tweak, or adjusted particle size for their reaction. Sometimes we can dial in these changes by adjusting purification steps or by re-examining crystallization. Sometimes, the change isn’t feasible, based on the chemistry.
The key lesson from these requests: flexibility only works in tandem with safe, rigorous core production. Success means knowing the process so thoroughly that adjustments can be made without introducing risk, downtime, or off-spec batches. We value agility, but not at the expense of reliability. Every proposed change gets tested first at bench scale, then pilot plant, with documentation at every stage.
In practice, researchers come to us comparing 2-Bromobenzenesulfonamide directly with alternatives like the para-bromo or the unsubstituted benzenesulfonamide. Chemistry dictates that the ortho-bromo position—positioned right next to the sulfonamide functionality—reacts differently. Electron-withdrawing bromine fundamentally alters both the reactivity and interaction with nucleophiles, leading to unique reactivity pathways. This difference stands out especially compared to the para isomer, where steric effects inside the aromatic ring drop off.
From our production floor, batches of 2-Bromobenzenesulfonamide run differently: they require closer attention to batch temperature and agitation rates, compared with more symmetric counterparts. This molecular specificity feeds directly into practical advantages, such as higher yields in stepwise synthesis or cleaner chromatographic separations.
Researchers look for stability and purity in these products. Our technical conversations with customers often settle on subtle details—incomplete bromo substitution, moisture uptake, or handling issues that might not present with simpler analogues. We emphasize the actual handling risks, especially when scaling from grams to kilos. Each structural variant brings a different physical and chemical behavior: melting point, solubility, and sensitivity to environmental factors all play real-world roles in a plant’s operation.
Packaging and handling get less attention in brochures, yet every production chemist knows that solid form decides just how easily a material integrates into their own operation. Our experience keeping this material dry, in tightly sealed polyethylene-lined drums, comes directly from lessons learned on our floor. We have seen moisture creep ruin a full run, resulting in clumping and variable reaction rates. Even ambient humidity can hurt sensitive steps on a synthetic line. To retain free-flowing physical form, we cool and transfer our finished material promptly, sealing bulk batches beneath inert gas. These measures protect both quality and safety.
Practical storage advice comes from hands-on learning. In the heat of summer, temperature spikes can cause caking or subtle decomposition over weeks, so warehouse stores get temperature controls. Facilities using the product in bulk often request guidance or conditioning procedures for long-term warehousing. In that context, our storage recommendations are less about selling more and more about reducing end-user frustration, lost time, and unnecessary expense.
Some users initially plan to prepare 2-Bromobenzenesulfonamide in-house, using sodium bromide and benzenesulfonamide under oxidative conditions. Over time, most discover the yield, purity, and time costs argue strongly in favor of a dedicated manufacturing process. Our facility’s scale and deep experience make it possible to push impurity levels much lower than in most in-house set-ups. Each run benefits from our decades of small process tweaks, calibration, and real-world troubleshooting.
Repeated customer feedback reinforces this advantage: time spent on reworking off-spec, hand-prepared batches routinely tops the cost of buying material directly from a purpose-built facility. Analytical runs—GC, HPLC, and NMR—reveal that batch-to-batch variation drops sharply once customers switch from their own syntheses to our manufactured product.
Operational responsibility shapes our day-to-day routines. The handling of brominated waste streams, use of less toxic solvents, and solvent recovery efforts have evolved with stricter regulation and customer guidance. Being on the ground, it quickly becomes clear that resource minimization goes hand-in-hand with better yield. Our team has transitioned away from single-use processing, opting for reusable filtration media and an emphasis on process water management.
Real waste reduction happens here: we see the difference in reduced drum volume leaving our site and lower chemical oxygen demand in our effluent streams. Solvent re-use is now our expectation, not just a “green” talking point. Many of these improvements came from front-line suggestions—operators and shift chemists seeing patterns, calling out excessive loss points in old routines, and submitting ideas for small-scale trials.
Our open dialogue with users—often at the pre-clinical research or new process development stage—delivers fresh ideas and exposes new requirements. Sometimes, customers contact us to troubleshoot anomalous reactivity or unexplained NMR chemical shifts. Our technical staff steps in with direct bench comparisons, re-running reactions under a controlled environment while mapping differences side-by-side with reference material. This support often prevents wasted effort and spotlights the minor details that could have been missed otherwise.
Customers rely on consistent, practical quality rather than abstract promises. The community of process chemists and materials scientists keeps us sharp through questions, feedback, and shared data. This engagement doesn’t just serve end users: we channel it right back into refining product protocols, reactor cleaning cycles, and our analytical suite.
Demand spikes and supply disruptions happen. Logistics challenges—from trucking delays to container shortages—can threaten to derail tight R&D timelines. By running our own plant, keeping strategic stock, and investing in on-site warehousing, we shield users against the worst fluctuations. Our staff has weathered storm surges and dealt with sudden market lulls. Each lesson makes our operation more resilient for the next challenge.
The stability of our supply chain comes down to a core team who understand what it means to miss a delivery window. We invest in on-site training, trust the observations of veteran line workers, and reward creative problem-solving. This durable human system—backed by careful technology—underpins every batch that leaves our site.
Real-world reliability in downstream reactions, batch-to-batch consistency, and customer-first problem-solving have always set our product apart. It is easy for sales teams to make grand claims about “premium” or “top-quality.” Our approach roots itself in pragmatics: what shows up on the customer’s bench, how it behaves in scale-up, and its consistent documentation trail.
Feedback from both academic researchers and industrial users continues to inform small and large process changes. We begin each new batch with the same commitment, reviewing all specs and history before a single raw material leaves the warehouse. The drive to keep learning, to mine every feedback loop, builds a process that always improves. This cumulative knowledge ensures our 2-Bromobenzenesulfonamide will stand up—whether it’s running at kilogram scale in a pharma pilot plant or supporting new molecules in a biotech lab.
Our guidance comes from decades of factory floor work and countless hours troubleshooting, not recycled templates or brochure-speak. Suppliers succeed only by respecting the exact needs, challenges, and ingenuity of real-world users. We adjust and adapt based on facts, vigilance, and a steady commitment to do better with every single batch of 2-Bromobenzenesulfonamide. The compound is just the beginning. The knowledge, attention, and collaboration travel with every delivery we make.