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HS Code |
700369 |
| Cas Number | 2142-68-9 |
| Molecular Formula | C13H9BrO |
| Molecular Weight | 261.12 g/mol |
| Iupac Name | 4-bromobenzophenone |
| Appearance | White to off-white crystalline powder |
| Melting Point | 83-86°C |
| Boiling Point | 210°C at 10 mmHg |
| Solubility | Slightly soluble in water, soluble in organic solvents |
| Density | 1.39 g/cm³ |
| Refractive Index | 1.629 |
| Smiles | C1=CC=C(C=C1)C(=O)C2=CC=C(C=C2)Br |
| Inchi | InChI=1S/C13H9BrO/c14-12-8-6-11(7-9-12)13(15)10-4-2-1-3-5-10/h1-9H |
As an accredited 4-Bromobenzophenone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 25g bottle of 4-Bromobenzophenone features a white, screw-cap HDPE container with a hazard label and batch identification. |
| Shipping | 4-Bromobenzophenone is shipped in tightly sealed containers, protected from light and moisture. It is classified as a hazardous material; handle with appropriate safety precautions. The package is clearly labeled, accompanied by a Safety Data Sheet (SDS), and compliant with national and international transport regulations for chemical substances. |
| Storage | 4-Bromobenzophenone should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizers. Protect from moisture and physical damage. Ensure the storage area is clearly labeled and access is limited to authorized personnel trained in handling chemicals. |
Applications of 4-Bromobenzophenone in Industrial Manufacturing4-Bromobenzophenone serves as a key intermediate within diverse chemical production sectors. The following application segments outline its central roles, integration points, and industry standards observed by major manufacturers worldwide. Each scenario reflects current, proven end uses grounded in ongoing market demand and downstream process requirements. 1. Synthesis of Pharmaceutical IntermediatesManufacturers utilize 4-Bromobenzophenone to construct various biologically active molecules where benzophenone moieties are required. This compound enters multi-step pathways in the production of antihistamines and certain non-steroidal anti-inflammatory drug (NSAID) intermediates, especially where halogenated aromatic substrates improve downstream yields. Final compounds often progress to regulatory submission or active pharmaceutical ingredient formulation, necessitating strict purity and traceability during integration. Industry compliance standards
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2. Development of Specialty Agrochemical CompoundsProducers in the crop protection sector incorporate 4-Bromobenzophenone during the generation of advanced herbicides and insecticides requiring aromatic ketone functionality. The raw material's chemical structure enables selective introduction of additional substituents, improving specificity and environmental stability for new-generation agrochemicals. Integration in pilot and scale-up batches prioritizes performance verification for regulatory submissions across major markets. Industry compliance standards
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3. Electronic and Photoresist Material ManufacturingChemical factories engaged in semiconductor and printed circuit board (PCB) production employ the compound as a photoactive compound precursor in positive photoresists and heat-resistant polymers. Its reactivity supports controlled cross-linking and functionalization steps crucial for developing advanced patterning agents and surface coatings required in microelectronics. Raw material quality and trace metal content remain closely monitored to safeguard process stability and device reliability. Industry compliance standards
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4. Fine Chemical Dye and Pigment SynthesisManufacturing plants leverage 4-Bromobenzophenone as a strategic intermediate in the creation of specialty dyes and photoreactive pigments. The aromatic ketone structure facilitates controlled coupling and azo linkage steps, critical for producing vivid, lightfast colors used in optical storage, functional textiles, and security printing sectors. Careful management of impurity profiles ensures finished pigment reliability across demanding end uses. Industry compliance standards
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5. Polymer Additive and Modifier ProductionPolymer and resin manufacturers use 4-Bromobenzophenone in the synthesis of UV-absorbing and stabilizing additives for specialty plastics. The compound offers reactivity points for attaching stabilizing groups, essential for enhancing longevity and UV-resistance of finished resins. Integration occurs during compounding stages to preserve additive performance and allow precise control over optical and mechanical properties of engineered polymers. Industry compliance standards
Typical usage ratio
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4-Bromobenzophenone commands a regular presence on our production lines. As a manufacturer, we become familiar with more than just the IUPAC name or the CAS number. It’s about the raw materials we order in bulk, the equipment settings we monitor hour by hour, and the quality checks we carry out through every single batch. Over time, this compound has become a staple in our portfolio — not because the market demanded it, but because our own R&D and client collaborations proved its value for application in real work.
We see 4-Bromobenzophenone primarily as an intermediate. Across our facilities, researchers and technicians handle it for building more complex molecules. Its biggest calling card is the bromo group. This simple addition to benzophenone opens the door for Suzuki, Heck, and other cross-coupling reactions — methods popular with pharmaceutical companies and fine chemical producers. The reactivity delivered by that single bromine atom forms the backbone of why so many chemists place repeat orders with us.
Scaling up 4-Bromobenzophenone isn’t about maxing out reactor volumes. We spend much of our time focusing on keeping contaminants at bay. In actual operation, purity levels of 99% or higher aren’t a marketing tagline; they separate a batch that passes QC from one that fails. Trace impurities in bromoaromatic compounds can block downstream reactions, create side-products, and clog up both agitation systems and progress in customer labs. We learned this after repairing filter presses and tracking down sources of yellowish tints in product drums.
Researchers working up small molecules can sometimes purify impurities away after the fact, but larger syntheses demand reliable starting materials. Here, the quality of our 4-Bromobenzophenone means more than a printed certificate of analysis. We use consistent lots, and check-in with the chemists who matter — not just the end-users, but the production managers who actually charge the reactors. Those long-term relationships, and the stories we get back about successful scale-ups, validate the time we invest in each metric ton.
4-Bromobenzophenone’s structure, C13H9BrO, supports a surprising amount of versatility for such a small molecule. We’ve produced it as off-white crystals, free-flowing powders, even in custom-milled micronization grades for customers with strict dissolution requirements. Depending on the end user’s reaction, one batch may require a certain melting point, another a particular particle size distribution. Our technicians and engineers rise early for sample prep, track solvent selection closely, and keep a close watch over vacuum ovens. In some cases, we introduce extra filtration or swap out an aging chromatography cartridge to knock out stubborn colored byproducts.
Behind all these steps stands the expectation of reproducibility — not just for one month, but year after year. Pharmaceutical makers depend on us to not only meet written specs but also adapt to their changing synthesis demands. Sometimes, we field calls about new grade requirements, or sudden changes in analytical specs to align with the latest regulatory filings. Customization isn’t a one-off: it’s a standard feature of ongoing production. Every batch logs the challenges we faced and the tweaks needed to serve customers whose processes can’t grind to a halt because of small inconsistencies.
On paper, benzophenone derivatives appear similar. In the reactor, subtle differences set compounds apart. 4-Bromobenzophenone stands out most obviously in cross-coupling work. We handle plenty of unsubstituted benzophenone as well as para-methyl and para-chloro analogs. Yet the bromo group brings reactivity that’s simply not matched by its chloro or methyl cousins. Cross-coupling with arylboronic acids or alkenes uses that feature, often at lower catalyst loads and with higher overall yields. Over time, our production managers notice these details because clients give direct feedback on conversion efficiency and byproduct profiles. The value comes less from theory and more from hundreds of production runs and scale-ups, each adding to our confidence in the compound’s role as a building block.
Solubility profiles also differ. 4-Bromobenzophenone often shows greater solubility in certain organic solvents compared to other halogenated analogs. This changes how we design filtration steps, select drying temperatures, and ultimately contribute to downstream usability. Easy downstream handling translates into quicker charging of reactors, less time scraping residues from centrifuges, and cleaner transitions between product runs. The details — solubility, melting point, and crystal habit — drive hands-on changes to SOPs, not just whiteboard discussions or literature reviews.
Our customers rarely sit still. As a manufacturer, we don’t just push 4-Bromobenzophenone out the door and wait for the next order. Over the past decade, applications have shifted. Early days focused heavily on pharmaceutical intermediates. Now, advanced materials and specialty polymers generate almost as many inquiries. End users employ brominated benzophenones as starting points for photosensitizers in specialty inks or as monomers in optoelectronic devices. In these roles, they care about thermal stability, absence of trace metals, and tight control of residual solvents.
Using feedback cycles with our larger buyers, we retool our QC protocols — from broader screens for palladium and other transition metals to tighter controls on organic residuals. Cleaning validation becomes more rigorous. Continued investment in analytical equipment — like LC-MS and GC–MS — has become routine. These changes aren’t driven by a marketing department but by conversations with partners who measure trace contaminants at ppb levels and base purchase decisions on consistent, incremental improvements to the supply chain.
Producing metric tons of 4-Bromobenzophenone each year places us under local and international scrutiny. Waste isn’t theoretical — it fills drums and tankers at the end of every shift. We treat bromine waste with extra care, tracking each kilogram for proper neutralization and disposal. Large-scale brominations draw attention, and regulatory agencies aren’t shy about audits. We document batch records and waste manifests, and routinely upgrade scrubbers, containment, and wastewater handling systems. Mistakes from years back — like improper disposal of mother liquors — have shaped our continued investments in compliance and closed-loop processing.
By using solvent recovery and investing in distillation columns, we now reclaim significant fractions of our solvents. Our engineers collaborate with neighboring manufacturers to share best practices in spent bromine handling and on-site recycling. These partnerships emerged not from governmental pressure alone, but from our desire to keep costs down and reduce our ecological footprint. Our experience shows that responsible bromination — especially on the scale needed for sustained supply — takes just as much foresight and day-to-day vigilance as controlling batch quality.
4-Bromobenzophenone supply depends on stable access to both bromine and aromatic feedstocks. In recent years, shortages have led to price spikes and delivery delays. Customers don’t need excuses, so we now hold greater inventories of bromine and work with tiered suppliers for key solvents and ketones. That buffer didn’t appear overnight. Our supply chain team learns from every bottleneck, running scenario drills to ensure no single point of failure derails a batch. Staying honest with customers about lead times has helped, so they can plan — or pivot — before production schedules back up.
Global events, from port shutdowns to energy price hikes, remind us that chemistry doesn’t exist in a vacuum. Independent audits and traceability programs have helped reinforce trust among longtime partners. Instead of gambling on speculative pricing, we work from long-term contracts where possible and maintain regular dialogue with key raw material producers. These steps build resilience, both for our own operations and for the companies that depend on a steady stream of specialty chemicals.
Shifts in regulatory regimes — REACH registration, emerging US toxics standards, and frequent updates to Asian import controls — challenge every chemical manufacturer playing on the international stage. 4-Bromobenzophenone isn’t classified among the harsher substances, but neither do we take shortcuts. Registration, extensive documentation, and batch-specific traceability make routine compliance the norm. As legislation tightens, our in-house regulatory affairs staff receive regular retraining. Auditors check up on us, and we welcome the process. By maintaining transparent paperwork and prior notice on composition changes, we help downstream customers update documentation on their end without breaking their own compliance chain.
Requests for product stewardship statements, trace metals profiles, and food-grade declarations may arrive at any hour. We respond rapidly, drawing from our living document repository. Serving multinational clients has taught us that export controls, labeling expectations, and environmental reporting must match the standards where the end product lands, not just our own local guidelines. These lessons don’t come from handbooks; they come from customer phone calls after a shipment holds up in customs, or notifications of new white lists in emerging markets.
Manufacturing 4-Bromobenzophenone is more than shipping a white crystalline powder. Successful, long-term manufacturer-client partnerships grow through transparency, shared troubleshooting, and incremental improvement. Our R&D chemists have spent hours alongside counterparts in customer labs, trouble-shooting unexpected coloration, odd melting behavior, or new contaminant signals from advanced analytical tools. Those early-morning exchanges yield mutual respect and technical learning that shape future orders.
We know that generic product sheets can’t answer every question or predict every industrial process variable. Customization sometimes means batch segregation, variable pack sizes, or novel dry-down protocols. Through every product inquiry and troubleshooter’s phone call, we adapt — in part because our own workflows improve each time a new challenge arises.
Chemical synthesis is a field in motion, and demand for high-quality, specialty intermediates like 4-Bromobenzophenone keeps evolving. Our in-house team tracks not only current usage cases but also emergent trends in pharmaceuticals, electronics, and advanced materials. Several pharmaceutical innovators now chase new targets where our brominated building block provides a scaffold for more complex syntheses. At the same time, electronics companies explore its use in crafting organic semiconductors or UV-absorbing coatings, and new areas in functional monomer chemistry open regular opportunities for collaboration.
We treat each new application as a chance to reexamine our own production chemistry, whether through process intensification, greener solvent systems, or tighter analytical controls. Continuous improvement isn’t a buzzword for us — it demands investment in people, training, and process monitoring. We have learned that end users focus more intensely on trace impurities, heavy metals content, and even chiral purity. We engage with outside consultants, adapt our trace impurity analysis capabilities, and actively support client method validation to meet their exacting standards.
Every team member in our production and quality divisions becomes fluent in the details that make or break a product run of 4-Bromobenzophenone. Our operators log each deviation, flag equipment drift before it affects product, and alert upstream vendors if a raw material lot fails mid-campaign. The learning curve has been steep at times — especially during periods of high demand or evolving regulatory scrutiny — but these challenges shape a supplier who can deliver consistently.
As a business rooted in chemical manufacturing, we’ve learned that maintaining open dialogue with both customers and suppliers makes a larger impact than any amount of product coding or digital paperwork. Shared process improvement, guided by real-world lab and production data, keeps both sides agile and informed. It is this approach — grounded in practical experience and long hours monitoring batch after batch — that enables us to support the steadily growing, and diversifying, application base for 4-Bromobenzophenone while continuously raising the bar for quality and reliability.