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HS Code |
386085 |
| Productname | 4-Bromo-5-Fluoro-2-Nitrophenol |
| Molecularformula | C6H3BrFNO3 |
| Molecularweight | 236.99 |
| Casnumber | 1072956-14-5 |
| Appearance | Yellow solid |
| Meltingpoint | 142-146°C |
| Purity | Typically >98% |
| Solubility | Soluble in organic solvents (e.g., DMSO, ethanol) |
| Smiles | C1=C(C=C(C(=C1F)Br)O)[N+](=O)[O-] |
| Inchi | InChI=1S/C6H3BrFNO3/c7-4-2-3(10)1-5(8)6(4)9(11)12/h1-2,10H |
As an accredited 4-Bromo-5-Fluoro-2-Nitrophenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Getting a handle on the fine points of chemical intermediates changes everything for the lab worker, R&D chemist, or purchasing expert. One compound that keeps cropping up in high-demand sectors is 4-Bromo-5-Fluoro-2-Nitrophenol. The model we’re talking about today centers on the 4-Bromo, 5-Fluoro, and 2-Nitro substitutions on a phenolic ring—a mouthful for some, but these groupings shape reactivity and performance in major ways. If you're hitting the books or deep into a project, it pays to know what makes this phenol derivative tick compared with older or more basic substituted phenols.
Years ago, labs like mine reached for phenolic compounds without giving much mind to substitution effects. Try putting vanilla phenol in a mixture, then compare it with one bearing bromine, fluorine, and nitro groups—big difference. Stress-testing reactivity or aiming for structural diversity, this molecule brings fresh capabilities. The para-bromo site allows for further nucleophilic substitution, while fluorine on the ring adds electron-withdrawing punch and modifies both polarity and metabolic stability. The nitro group, positioned ortho to the phenolic -OH, further increases electrophilic character and opens doors to unique coupling or reduction steps downstream. This triple threat of substituents breathes flexibility into organic synthesis.
People often ask what specific problem such a compound solves in the day-to-day grind of the chemistry bench. Whether prepping libraries for pharmaceutical screening, mapping out agrochemical building blocks, or chasing novel dyes and materials, versatility matters a lot. This phenol stands out by making cross-coupling and downstream functionalization more accessible. I've watched coworkers spend half a day coaxing a halogenated intermediate to react; thanks to the thoughtful substitution, this compound tends to sit right at the crossroads of reactivity and stability, helping projects move forward instead of stalling out.
Far too often, marketing materials skimp on details about what actually goes into the bottle, but this is the first thing anyone in the field needs to know. Impurities in intermediates set off a chain reaction of problems—failed syntheses, unreliable results, expensive clean-up. I’ve been burned before by so-called “laboratory grades” that left a sticky residue or mysterious UV peaks. That’s why a batch with a real purity certificate, typically upwards of 98%, brings peace of mind. Solid, yellow or off-white appearance isn't just a nice-to-have; it often signals a clean preparation. Melting point checks, HPLC and NMR quantification—these are what separate real research quality from frustration-filled guesswork.
Look around at the crowded shelves of any decent chemistry storeroom. There’s no shortage of phenols. What’s rarer is hitting that mix of chemical potency, reproducible results, and ease of use. In my experience, 4-Bromo-5-Fluoro-2-Nitrophenol occupies a niche at the intersection of innovation and practicality. The unique electronegative setup on the aromatic ring translates to more controlled reactivity in Suzuki couplings or nitro reductions. Accessing fluorinated analogues often means wrestling with hazardous reagents or low yields—the fluorine here is already where you want it, saving time and increasing your odds of success.
I’ve seen labs work with plain phenol, single-substituted bromo-phenols, or even two-group analogues. Adding a third substituent, especially in the right arrangement, changes the game. Fluorine brings a unique metabolism profile that matters for anyone working in medicinal chemistry; fewer chances for rapid enzymatic breakdown, which means you can better track biological effects in a controlled way. Nitro, while sometimes a red flag for safety, is far less challenging on a stabilized aromatic system like this than with some loose-cannon nitroaliphatics. As for bromine, it’s big enough to facilitate directed ortho-metalation or serve as a strategic leaving group. All three work together, providing synthetic chemists more levers to pull, without the structural dead ends that crop up with less thoughtfully substituted benchmarks.
People in the lab worry about more than just what the literature says. Handling characteristics—how it dissolves, how it filters out, if it messes up glassware—matter as much as theoretical specs. In my own hands, 4-Bromo-5-Fluoro-2-Nitrophenol dissolves best in polar aprotic solvents, and you rarely hit stubborn particulates. Unlike older nitrophenols I’ve dealt with, the off-gassing risk is minimal at standard benchtop temperatures. Orange-yellow powder that settles quickly, rarely clumps, and generally cleans up with a standard rinse. Crystallization is sharp and repeatable; I've never had trouble redissolving for analysis. These “soft” features make daily usage a smoother ride, which can matter a ton during project sprints.
Seasoned chemists never overlook safety. Aromatic nitros, in general, ask for a well-ventilated space and good glove discipline—but measured against more volatile or labile nitro components, this molecule holds up under standard lab protocols. Out of direct sunlight, capped tight, and shielded from moisture, it preserves well, thanks to both its structure and typical stabilization agents. Brominated aromatics rarely throw off dangerous fumes under ambient conditions, and the incorporation of the fluoro group further solidifies overall compound stability. My experience has been that standard chemical storage rules suffice—reliable over several months at controlled temperature, with little to no unpleasant surprises during routine handling.
Given the ever-expanding world of organic synthesis, the number of building blocks keeps growing. Still, teams come back to 4-Bromo-5-Fluoro-2-Nitrophenol for a reason. I’ve taken part in secondary metabolite synthesis runs, medchem hit expansions, and small-batch pilot reactions where this compound saved hours. More predictable outcomes—whether that means a 95% isolated yield or a new reaction pathway you didn’t see coming—translate directly to research dollars saved and headaches avoided. High purity, dependable spectral data, and steady supply lines leave researchers free to focus on theory and results, not repeat troubleshooting.
Once you have this substituted phenol on your bench, new syntheses open up. The bromine works wonders in palladium-catalyzed couplings, making biaryl linkages much smoother than trying to install a bromo group late. The nitro group, sitting two carbons away, can be reduced to an amine without collateral damage to the bromine or fluoro substituents—something I’ve rarely achieved with more congested or sensitive scaffolds. For anyone making kinase inhibitor cores, advanced materials, or dye intermediates, every substituent does double duty in unlocking complex architectures.
No one likes to talk cost, but it matters whether you’re in a university lab working under tight grants or in a startup where every hour counts. What I’ve noticed lately is that 4-Bromo-5-Fluoro-2-Nitrophenol tends to offer better bang for buck due to fewer purification headaches and a lower waste load. Less column time, fewer batches thrown away, less solvent used—all points that make it more attractive than less stable or fiddlier analogues. From a green chemistry angle, the compound’s readiness to react means less need for harsh activating conditions, milder temperatures, and a better safety record on exotherms and off-gassing.
More than once, teams have asked if a compound like this actually solves problems outside academic curiosity. My answer leans on years spent consulting for pharma, crop science, and fine chemicals. Early-stage drug hunting often needs blocks that support late-stage functionalization without excess metabolic liability, and the 5-fluorine answers that by slowing down many Phase I transformations. On the agrochem side, brominated phenols fight off pests and disease vectors better than most, while the nitro group enables further finishing steps essential for regulatory approval. Fine chemical manufacturers often select for such building blocks because they facilitate both new colorant exploration and the creation of robust intermediates for coatings, electronics, and medical imaging. Across the board, the value lies as much in reduced development friction as in the molecule itself.
Comparing this molecule to competing building blocks requires checking more than a periodic table. Typical 4-bromophenol or 4-nitrophenol intermediates may come cheaper but fail to deliver the same range of synthetic options. The interplay between electron-withdrawing fluorine and the other groups means activation and deactivation can be dialed in, leading to more selective downstream chemistry. Older analogues lack the metabolic fine-tuning that today's researchers need to get compounds through screening and regulatory gates. From my side of the bench, these differences show up as fewer undefined byproducts, less guesswork in reaction planning, and an easier time getting consistent NMR and MS data from batch to batch.
Anyone who’s worked in an environment facing regulatory scrutiny knows every batch of intermediate must stand up to documentation demands. Good suppliers back up every shipment with detailed analysis, traceable lot numbers, and compliance with standard best practices. 4-Bromo-5-Fluoro-2-Nitrophenol, sourced from reputable labs, meets these expectations. Analytical controls catch out-of-spec runs before they reach the customer. Regular third-party checks confirm identity and guarantee minimal contamination. All this adds up to smoother audits and no scrambling for last-minute certificates—a point you appreciate the first time a regulatory consultant comes calling.
In my years running synthesis projects, I’ve realized that the best intermediates earn their spots not only through theory or catalogs but by being consistently usable in the real world. After dozens of scale-ups, downscalings, failed runs, and late-night troubleshooting, you learn that a well-engineered compound like 4-Bromo-5-Fluoro-2-Nitrophenol almost always does as advertised. Less time spent adjusting protocols, less need for complex purification, more straightforward analytical follow-ups—all features the benchtop worker feels keenly as soon as they start using it. Strong track records in academic literature and commercial patents support its usefulness in a range of different contexts, confirming its place as more than just a specialty chemical.
A modern lab relies not on a single magic bullet but a suite of tools and starting points. 4-Bromo-5-Fluoro-2-Nitrophenol blends into these toolkits, supporting automated platforms, parallel screening setups, or single-flask manual runs alike. Whether dissolved directly for screening or run through column chromatography for further derivatization, it plays well with a wide range of other reagents common in combinatorial and target-oriented synthesis. Its compatibility with automation—liquid handling robots, for example—means that scale-up from milligram to multi-gram no longer gets derailed by finicky solubility or thermal instability. Integration matters more than ever in the era of sustainable chemistry, and the less energy and solvent a compound demands, the better its fit with responsible long-term practices.
Problems happen in every research process. Complex reaction profiles, stubborn impurities, time outlays, costly solvent cycles—many arise from the limits of standard building blocks. 4-Bromo-5-Fluoro-2-Nitrophenol often solves these by bringing greater functional diversity and cleaner reactivity into routine synthetic steps. If an approach fails using a standard phenol, swapping in this triple-substituted version can introduce new routes for C–C or C–N bond formation. In my experience, troubleshooting becomes more manageable, and results grow more predictable, reducing the typical cycle of trial, error, and rework.
One of the first things quality-conscious labs check is batch data. Here, the compound shines, too. Suppliers offer NMR spectra showing sharp, assignable chemical shifts matching expected aromatic substitution patterns. High-resolution mass spectrometry confirms molecular weight, ruling out byproducts or isomers. Melting point ranges match published benchmarks, ensuring users aren’t saddled with an impure or off-spec sample. Chromatography (HPLC or TLC) gives a single, tight peak, a sign of low impurity burden. Over the years, personally pulling these traces has saved my teams from drawn-out optimization or cleanup cycles—proof, again, that up-front transparency pays back in hassle avoidance.
No editorial—even if experience-rooted—should end without helping others get the most from a product. For researchers, sourcing from reputable distributors, double-checking certificates, running quick spot-analyses, and documenting reaction outcomes all drive better results faster. Methods that preserve the core structure—using mild bases or low-temperature conditions for couplings—unlock the compound’s full potential. For storage, using light-blocking containers, moisture packs, and quarterly inventory checks keeps quality sharp. Labs that prioritize these steps gain a real edge: more published results, fewer failed experiments, and faster ingredient-in to product-out timeframes.
The scientific community moves forward through open communication. Sharing protocols, published reaction sequences, or speaking up about batch issues keeps everyone moving forward. I advocate for post-market feedback: reporting on reaction successes and sticking points with 4-Bromo-5-Fluoro-2-Nitrophenol closes the loop between producers and end users. Peer-reviewed forums, conference posters, and case studies build a living history around the compound, demystifying tricky steps and giving new researchers clear ways forward.
R&D won’t stand still, and neither will the expectations placed on next-generation intermediates. Future innovation means pushing further with greener transformations, higher-throughput workflows, and ever-tighter reproducibility. Compounds like 4-Bromo-5-Fluoro-2-Nitrophenol set a new standard by marrying chemical diversity with user-friendliness—not something that happens by accident. The coming years may bring versions with even more targeted substitutions, improved environmental metrics, or digital tracking features to assure provenance and chain of custody. For now, anyone seeking a robust, dependable foundation for complex synthesis can count this molecule among their most reliable resources.
