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HS Code |
887354 |
| Chemical Name | 5-Bromo-3-nitro-2-hydroxypyridine |
| Cas Number | 65117-99-7 |
| Molecular Formula | C5H3BrN2O3 |
| Molecular Weight | 218.99 |
| Appearance | Yellow to orange solid |
| Melting Point | 120-126 °C |
| Solubility | Slightly soluble in water, soluble in organic solvents like DMSO and ethanol |
| Purity | Typically ≥97% |
| Synonyms | 5-Bromo-3-nitro-2-pyridinol |
| Storage Temperature | Room temperature, away from light and moisture |
| Smiles | C1=CC(=NC(=C1Br)[N+](=O)[O-])O |
| Inchi | InChI=1S/C5H3BrN2O3/c6-3-1-2(8(10)11)5(9)7-4(3)12/h1,9H |
As an accredited 5-Bromo-3-nitro-2-hydroxypyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sealed amber glass bottle containing 25 grams of 5-Bromo-3-nitro-2-hydroxypyridine, labeled with chemical name, formula, hazard symbols. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for 5-Bromo-3-nitro-2-hydroxypyridine: Securely drums or bags, maximized payload, moisture-protected, compliant with hazardous chemical regulations. |
| Shipping | 5-Bromo-3-nitro-2-hydroxypyridine is shipped in tightly sealed, chemical-resistant containers, protected from light and moisture. It is classified as a hazardous material, requiring appropriate labeling and documentation according to regulatory guidelines. Transport is conducted by certified carriers, ensuring compliance with local, national, and international chemical shipping regulations for safety. |
| Storage | 5-Bromo-3-nitro-2-hydroxypyridine 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 and reducing agents. Store at room temperature and avoid moisture. Ensure proper labeling and restrict access to trained personnel. Use secondary containment to prevent spills or leaks. |
| Shelf Life | 5-Bromo-3-nitro-2-hydroxypyridine is stable for at least two years if stored tightly sealed, protected from light, and moisture. |
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Purity 98%: 5-Bromo-3-nitro-2-hydroxypyridine with purity 98% is used in pharmaceutical intermediate synthesis, where it ensures high-yield and reproducible reactions. Melting point 192°C: 5-Bromo-3-nitro-2-hydroxypyridine with a melting point of 192°C is used in agrochemical formulation studies, where thermal stability enables reliable compound integration. Particle size <10 μm: 5-Bromo-3-nitro-2-hydroxypyridine with a particle size less than 10 μm is used in analytical reagent preparation, where rapid dissolution and homogeneity are achieved. Moisture content <0.5%: 5-Bromo-3-nitro-2-hydroxypyridine with moisture content under 0.5% is used in electronic material research, where low hygroscopicity prevents sample degradation. Stability up to 80°C: 5-Bromo-3-nitro-2-hydroxypyridine with stability up to 80°C is used in solid-state organic synthesis, where compound integrity is maintained during processing. |
Competitive 5-Bromo-3-nitro-2-hydroxypyridine prices that fit your budget—flexible terms and customized quotes for every order.
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Research keeps moving forward, and the tools we use need to keep pace. 5-Bromo-3-nitro-2-hydroxypyridine stands out in more ways than one in the world of chemical synthesis. This compound, with its unique positioning of the bromo, nitro, and hydroxy groups on the pyridine ring, does more than fill a slot in a catalog. For scientists looking to advance work in fields from pharmaceuticals to materials, this isn’t just another intermediate. One of the first things that strikes people working with this molecule is the balance it brings to reactivity and selectivity. Many syntheses require groups that will engage just enough—reactive but not reckless. The hydroxy group on the ring sets up options for derivatization; the bromo serves as a solid point for further reactions, including cross-coupling; and the nitro group pulls the electronic strings, guiding reactivity where you want it and not where you don’t.
The story of 5-Bromo-3-nitro-2-hydroxypyridine isn’t just about atoms and bonds. This molecule is a practical ally when you need high purity and consistency, two factors that can make or break downstream research. Sourcing reliable material matters—fluctuations in quality rear their head in wasted time, questionable data, or worse yet, unexpected outcomes in downstream tests. Over the years, I’ve come to rely on building blocks like this because batches hold up across several labs, and published results stay reproducible. In any mature research or manufacturing process, these are not trivial points—reputation and funding often depend on small molecules quietly doing their job every single time.
The model for 5-Bromo-3-nitro-2-hydroxypyridine production follows established synthetic pathways, usually starting with brominated pyridine cores. Most suppliers offer the compound with purity levels greater than 98%, most often as a fine crystalline powder. Melting points and spectral data (1H NMR, 13C NMR, and sometimes IR) accompany batches for researchers demanding proof of structure and cleanliness. I've checked chromatograms myself and seen that typical lots bring clean, single peaks—important when you’re about to invest in dozens of follow-up reactions. A true working chemist knows that nothing wastes resources faster than chasing a reaction that simply isn’t what you think it is, thanks to sloppy starting material.
Consistency ties back to quality control. In labs with tight schedules and budgets, being forced to triple-check incoming materials slows us down. Companies providing 5-Bromo-3-nitro-2-hydroxypyridine can build trust by regularly publishing batch analysis reports and registering materials with recognized chemical databases. I'm a big believer in only working with products that skip neither third-party verification nor transparency. This is just good science and it’s the sort of discipline I expect in any serious lab or industrial R&D setting.
5-Bromo-3-nitro-2-hydroxypyridine finds its way onto the lab bench in a surprising range of syntheses. Aromatic substitution reactions, especially Suzuki and Buchwald-Hartwig couplings, benefit from the bromo group’s position. Starting from this molecule, researchers build pyridine-derived pharmaceuticals, specialty dyes, ligands, and many other advanced intermediates. The nitro group acts as both a target for reduction and a way to control electrophilic or nucleophilic reactions further down the line. Having a hydroxy group on the ring not only opens doors for ether or ester formation but can also serve as a coordinating site in metal complex syntheses.
My own work has shown that when you start with a pure sample, downstream purifications tend to go easier. One example was in preparing pyridyl carbamates—starting from a dirty batch resulted in months lost, with separation issues that torpedoed plans for biological evaluation. After switching to higher-grade 5-Bromo-3-nitro-2-hydroxypyridine, columns ran clean and final compounds matched expected spectra. In several published papers, the authors trace their success to the reliability of starting materials like this. Colleagues in pharmaceutical teams echo similar experiences: using robust intermediates means syntheses are more predictable, batch failures drop, and timelines can be met with fewer unpleasant surprises.
Those who have spent real time with aromatic building blocks know that not all halogenated pyridines are created equal. Take 5-bromo-2-hydroxypyridine, for instance—the absence of the nitro group reduces the electronic differentiation between positions on the ring, which limits some functionalization options. Nitro-free analogs often won’t cooperate when you try to push selectivity in cross-couplings or nucleophilic aromatic replacements. On the other hand, sticking a nitro group in a different position, or removing the hydroxy group, shuts down options for solubility, coordination, or further O-derivatization.
A one-size-fits-all mentality fails in chemistry. The careful balance this molecule strikes means that it sits in a sweet spot for customization and further elaboration—put simply, it behaves itself in a range of conditions that trip up less well-designed intermediates. A few years back, I spent weeks trying to work around solubility issues in heteroaromatic synthesis using alternatives lacking the hydroxy group. Swap in 5-Bromo-3-nitro-2-hydroxypyridine, and suddenly formerly intractable reaction partners dissolve and react with much less fuss.
Manufacturers sometimes offer close cousins to this molecule, such as 3-nitro-2-hydroxypyridine or 5-bromo-2-hydroxypyridine, but these related compounds change the playing field quite a bit. Missing the bromo group means you lose out on a streamlined route to functionalizing that part of the ring, while missing the nitro takes out key options for both electron withdrawal and later group modifications. Over time, I’ve learned that using the right tool early in a project keeps things predictable through many steps, saving effort, and increasing safety along the way.
Anyone who’s looked at the supporting information behind a synthetic paper knows how much focus lands on characterization data and starting material quality. Reproducibility remains a talking point across the sciences for good reason. Irregular batches or off-brand analogs introduce unnecessary ambiguity into already complex projects. In industry and academic research both, the gold standard is starting with reference-grade material, ideally supported by batch certificates, NMR spectra, HPLC purity, and a documented manufacturing trail.
Studies examining reaction scope for cross-coupling have published data showing yields and selectivities heavily depend on the quality and specific substitution pattern of aromatic partners. The presence of both a nitro and a bromo group at these defined positions on the pyridine ring guides chemoselectivity, which means more efficient routes to drug-like compounds or advanced materials. Recent peer-reviewed research highlights how the electronic and steric environment of this specific molecule impacts the activation barriers and routes available for downstream reactivity—a practical sign of why it’s more than just another bench reagent.
Sourcing quality intermediates remains a key hurdle in many labs. I’ve been caught out more than once by inconsistent supply chains, delayed shipping, or batches that failed purity checks on arrival. One clear solution involves working with suppliers willing to publish lot-specific data and willing to honor strict return and replacement policies. Trusted networks among fellow chemists also play a role—sharing authentic, supplier-verified samples within collaborative groups minimizes the risk of project-stopping setbacks.
Handling and storage are rarely afterthoughts in modern labs. While the nitro group can raise some eyebrows about stability, published data and my own shelf tests suggest this product holds up well under common storage conditions, with minimal degradation over six to twelve months. I always recommend storing away from light and moisture, in tightly capped amber vials, to preserve purity for sensitive applications.
Operational safety deserves calm but clear attention. While 5-Bromo-3-nitro-2-hydroxypyridine hasn’t appeared on any acute danger lists in my experience or the mainstream literature, safe laboratory practice always includes gloves, eye protection, and good ventilation. Material Safety Data Sheets outline standards but learning from mentors or colleagues makes guidelines more practical and meaningful.
The reliability of research or scale-up projects swings on the credibility of chemical inputs. Many established suppliers back their products with both batch information and transparent quality assurance steps. In my conversations with professional contacts across universities and pharma companies, the consensus leans strongly in favor of materials with clear provenance. This expectation is particularly sharp for advanced building blocks like 5-Bromo-3-nitro-2-hydroxypyridine, where even slight variation can derail months of work.
Open communication between supplier and user can avert misunderstandings about specifications, reactivity, or handling. I appreciate companies that keep lines open and ready for feedback, especially if unexpected results arise. I’ve seen teams save resources and get back on track because a supplier flagged a batch anomaly before it left the warehouse. Such openness isn’t always the industry norm, but as buyers and users, demanding these standards marks a step toward more reliable science.
Reliable building blocks accelerate discovery and lower barriers to innovation. In drug discovery pipelines, slow or inefficient steps delay therapies reaching clinics or markets. Every experienced chemist knows that the wrong starting material chain-reacts into a world of problems, leading to resource drain, publication delays, or regulatory headaches.
5-Bromo-3-nitro-2-hydroxypyridine represents an advance in the steady stream of smarter intermediates. It allows for modular construction of heterocycles—a backbone of many therapeutic agents, catalysts, and functional materials. Integrations into combinatorial libraries and high-throughput synthesis depend on input molecules that behave predictably regardless of scale or application. In my time coordinating with teams on both small and large projects, we always came back to the same principle: dependable reagents open doors for fresh science and keep good ideas moving from bench to reality.
Demands on the fine chemical supply chain only appear to be growing. As drug, agrochemical, and material science sectors work with expanded molecular toolkits, intermediates with special reactivity profiles like 5-Bromo-3-nitro-2-hydroxypyridine take on greater significance. At conferences and in specialty workshops, I often hear about bottlenecks at the synthesis step—having the right intermediate in hand can speed up an entire project pipeline.
One common suggestion from users in the field is for more suppliers to publish comprehensive spectral libraries and cross-reference synthetic applications. Transparency makes it possible for new users to troubleshoot in advance and strengthen peer-to-peer knowledge transfer. Real-world testimonials and case studies, published in open-access formats, help the research community separate hype from proven value. Over time, this culture shift could lift benchmarks for other complex intermediates, not just this one.
Some progress points toward greener and safer synthesis routes for halogenated and nitrated pyridine derivatives. Reducing waste and optimizing reaction conditions, even at the intermediate stage, supports the broader commitment to sustainability. It would be great to see more manufacturers investing in environmental improvements while still hitting purity targets that advanced research requires. Evidence from existing green chemistry pilots in other parts of the chemical industry shows that both sustainability and product quality are possible together.
As understanding of reaction mechanisms deepens, chemists recognize that having versatile building blocks, like 5-Bromo-3-nitro-2-hydroxypyridine, can reveal new pathways for synthesis. Instead of working around reactivity mismatches, teams can focus energy on invention and discovery. Recent publications document successful cases where the right intermediate dramatically shortened synthetic routes or allowed access to unique heterocyclic structures not feasible with old-school reagents.
Every advance counts in the race to solve complex biological or materials problems. Building blocks that combine multiple desirable features—well-positioned backbone, functional handles, and reliable sourcing—set up whole research programs for success. It pays over and over, both in saved money and in forward progress across years of work. In my own experience, the cost of premium intermediates vanishes compared to costs incurred by false starts, dead ends, or irreproducible data.
Many research and process chemists still shop on price alone, only to see tighter margins squeezed by poor outcomes. In the current climate, long-term collaborations with reputable suppliers, data sharing, and regular communication add up to an ecosystem where every player gets what they need. Researchers keep projects on track, suppliers get feedback, and the broader community benefits from robust, reproducible advances.
Some lessons took me a while to learn—cutting corners at the front end nearly always invites repair work, sometimes much more costly, downstream. Investing in proven intermediates like 5-Bromo-3-nitro-2-hydroxypyridine streamlines workflows, and simplifies troubleshooting if things go wrong. In the end, it’s not just about getting the right molecule; it’s about fostering a culture where accountability, accuracy, and progress coexist.
5-Bromo-3-nitro-2-hydroxypyridine shows how much value careful molecular design and transparent sourcing bring to advanced research and process chemistry. For those who recognize that scientific progress rests on the foundation of high-quality inputs, this compound doesn’t feel like a commodity—it serves as a catalyst for better science. As the demands on chemical syntheses evolve, compounds with these strengths will only keep increasing in importance, ensuring new discoveries are grounded in solid, reproducible work.