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HS Code |
522395 |
| Compound Name | 5-bromo-2-hydroxy-4-methyl-3-nitropyridine |
| Molecular Formula | C6H5BrN2O3 |
| Molecular Weight | 233.02 g/mol |
| Cas Number | 933763-42-7 |
| Appearance | Yellow to orange solid |
| Boiling Point | Decomposes before boiling |
| Solubility In Water | Low |
| Pka | Estimated around 10 (phenolic OH) |
| Smiles | CC1=CC(=C(C(=N1)O)[N+](=O)[O-])Br |
| Inchi | InChI=1S/C6H5BrN2O3/c1-3-2-4(7)5(9(11)12)6(10)8-3/h2,10H,1H3 |
| Logp | Estimated 1.5 |
| Storage Conditions | Store at room temperature, protected from light and moisture |
As an accredited 5-bromo-2-hydroxy-4-methyl-3-nitropyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 25 grams, labeled “5-bromo-2-hydroxy-4-methyl-3-nitropyridine,” with hazard symbols and safety instructions. |
| Container Loading (20′ FCL) | 20′ FCL typically loads 8-10 MT of 5-bromo-2-hydroxy-4-methyl-3-nitropyridine in 25 kg fiber drums, palletized for safety. |
| Shipping | **Shipping Description:** 5-Bromo-2-hydroxy-4-methyl-3-nitropyridine is shipped in tightly sealed, chemical-resistant containers, labeled according to international regulations. The compound requires handling as a hazardous material—transported under cool, dry, well-ventilated conditions, away from incompatible substances. All shipments adhere to relevant safety guidelines and documentation protocols, ensuring safe and compliant delivery. |
| Storage | 5-bromo-2-hydroxy-4-methyl-3-nitropyridine should be stored in a tightly sealed container, protected from moisture and direct sunlight, in a cool, dry, well-ventilated area. Keep away from incompatible substances such as strong oxidizers and acids. Use appropriate safety precautions, including gloves and goggles, to prevent contact. Store under conditions recommended by the manufacturer or supplier. |
| Shelf Life | 5-bromo-2-hydroxy-4-methyl-3-nitropyridine typically has a shelf life of 2 years when stored in a cool, dry place. |
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Purity 98%: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with a purity of 98% is used in pharmaceutical intermediate synthesis, where it ensures high reaction yield and consistent product quality. Melting Point 156°C: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with a melting point of 156°C is employed in organic electronic material fabrication, where it provides enhanced thermal stability during processing. Particle Size <50 µm: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with particle size below 50 µm is applied in catalyst support preparation, where it results in increased dispersion and catalyst efficiency. Stability Temperature up to 110°C: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with stability temperature up to 110°C is used in agrochemical formulation, where it maintains structural integrity during high-temperature manufacturing. Assay ≥99%: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with an assay of at least 99% is utilized in analytical standard production, where it guarantees reliable and reproducible analytical measurements. Moisture Content ≤0.2%: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with moisture content not exceeding 0.2% is incorporated in high-purity dye synthesis, where it prevents unwanted hydrolysis reactions and maintains color fidelity. HPLC Purity 99%: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with HPLC purity of 99% is used in specialty chemical research, where it ensures precise and uncontaminated reactivity in developmental studies. Residual Solvent <0.05%: 5-bromo-2-hydroxy-4-methyl-3-nitropyridine with residual solvent less than 0.05% is applied in API (Active Pharmaceutical Ingredient) synthesis, where it minimizes toxicological risks and meets regulatory standards. |
Competitive 5-bromo-2-hydroxy-4-methyl-3-nitropyridine prices that fit your budget—flexible terms and customized quotes for every order.
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Our team puts years into refining the process behind every molecule, and 5-bromo-2-hydroxy-4-methyl-3-nitropyridine stands as a clear example of this dedication. Through foundational research and hands-on improvements carried out in our production workshops, we have made this pyridine derivative consistently reliable for labs and downstream formulations. Each batch reflects the steady experience of our crew—technicians who know how much trace moisture or even a brief exposure to light can alter crucial product features.
We manufacture 5-bromo-2-hydroxy-4-methyl-3-nitropyridine to exceed 98% purity, confirmed by both HPLC and NMR at our own facilities. Material leaves only after passing through our multi-stage in-house quality assurance. Chemists in our plant recognize the value of tight purity window, especially for specialty intermediates. Even labs that operate with tight validation protocols appreciate the absence of unexpected impurities in their syntheses using our material.
From our experience, many downstream pharmaceutical and fine chemical producers look for this type of pyridine nucleus because it combines halogen, nitro, hydroxy, and methyl substituents in a way that supports complex transformations. Precursor selection often makes or breaks process efficiency and overall yield, so offering a starting reagent that behaves predictably is more important than just ticking off a spec sheet.
Here, specification data represents outcomes from careful routine rather than simple claims. Our 5-bromo-2-hydroxy-4-methyl-3-nitropyridine comes as an off-white to light yellow crystalline powder, a result of tightly controlled temperature and filtration at every stage. The melting range, usually between 152 and 155°C, hints at the product's actual structure and phase purity—checked run after run by technicians who train on real samples, not only reading from manuals.
We never overlook solvent residues or the influence of air exposure on batch stability. Over the years, we've fine-tuned the last steps to minimize oxides and trace byproducts, so researchers receive a material suitable for both bench work and automated assembly. For those scaling up, our process design allows for kilogram runs without losing the chemical’s essential attributes. This comes from feedback shared directly by several pilot plant partners who pushed our material to high-throughput settings.
Shelf stability relies partly on packaging and handling. By relying on robust, light-blocking containers and purging vessel atmospheres before sealing, we cut the risk of slow degradation that can spoil a sensitive nitro-aromatic. We keep back reference samples from every lot in our retained inventory, ready for quick verification if a partner ever requests it.
The 5-bromo-2-hydroxy-4-methyl-3-nitropyridine molecule came to demand long before we began offering it. Synthetic chemists—whether developing small-molecule libraries or targeting heterocyclic frameworks—value the multiple reactive handles it offers.
The bromine atom at the fifth position gives access to further couplings, especially Suzuki and Buchwald-Hartwig reactions. Based on practice shared by customers and collaborators, this component opens space for a variety of arylation, forming bonds to fit both medicinal screening campaigns and agrochemical prototypes. The nitro group creates further possibilities. Reduction or nucleophilic displacement pathways have both been explored by teams outside and inside our own application lab. Its presence can also direct selectivity or activate the ring toward other substitutions when working on more involved molecule builds.
The hydroxy group, meanwhile, serves as a handle for etherification or acylation, while also being available for hydrogen bonding. In project after project, we’ve noted its effect on solubility and downstream crystallization, which often makes it preferable to simpler bromo-pyridines that lack this function. The methyl group brings added stability and helps researchers access specific molecular orientations.
We’ve held regular conversations with formulation researchers who tell us that switching from a different isomer or a closely related structure led to more manageable purification steps and stronger selectivity at the next synthetic step. That's why these particular four substituents keep showing up in patent databases and project notes.
In the working world of chemical research, many materials appear interchangeable on paper. In practice, the sources, manufacturing environment, and sheer attention to detail shape the product you actually receive. Below the surface, our 5-bromo-2-hydroxy-4-methyl-3-nitropyridine stands apart for repeatable composition and lot-to-lot reproducibility—three decades of operator skill mean the process yields steady quality, not just spec-compliant numbers.
Downstream performance in advanced coupling or reduction reactions depends on the trickle-down effect of those interventions we make at every production stage. Our records include long-term collaborations where the difference between isolated product yields and theoretical output was closed by tracking subtle impurities: halide byproducts, isomer blends, or trace iron from the catalytic system. Care at the plant translates into cleaner medicinal chemistry research and fewer headaches during method development.
We monitor more than the basic purity profile. For sensitive reactions, moisture levels below 0.3% and chloride levels in the low ppm range make a real impact. Our teams log and review even the “failed” portions of runs so improvements can be made batch after batch, not just at audit time.
Often, market-facing literature throws out premium tags with few specifics. Our team prefers to show batches from different seasons across years—with supporting HPLC traces, NMR documentation, and transparency about limits—which reassures project leads who count on stable supply and reproducibility, not one-off luck.
It’s easy to lose sight of what really matters if all you do is buy, warehouse, and resell. Unlike trading groups, our facility actually confronts the friction points: how humidity creeps into a drum, why a needle valve adjustment at scale alters side product levels, or what happens to the product after long-distance shipping. We maintain on-site process control and track batches right from raw input. Adjustments, once spotted, feed directly back into our operational protocol—without months of delay or bureaucratic drift.
Teams here routinely gather for debriefs where even tiny triggers—like a difference in water source, or upstream solvent lots—are examined if something shifts in final product look or trace purity. Documentation from these sessions feeds next round improvements, a continuous loop absent in stopgap middleman operations. Knowledge accrues organically as team members stay with us for years; apprentice chemists pick up hands-on habits from veterans who won’t sign off on off-color powder or inconsistent melting points.
Our application chemists give feedback to process teams on how our product reacts in actual synthetic routes, not just on the basis of certificate of analysis sheets. Problems once overlooked in the handoff between third-party handlers—clumping, over-aged stock, odd odors—rarely crop up here since we own the production from first to last step.
Over the last decade, pharma research teams and specialty chemical companies have told us that reliability in supply chain means more than a product being theoretically “available.” Knowing the material’s provenance, production timestamp, and in-depth batch behavior often shortcuts months of troubleshooting. Our supply chain is fully auditable, and change control at each processing stage lets us provide custom reports about storage, transport, and history upon request.
In trials with select partners, our lots have shown minimal compositional drift even after transit and long-term storage. Experience teaches that packaging type and turnover rate matter as much as closed-process synthesis. With regular consultation between customers and our logistics teams, we’ve introduced staged packaging releases and expedited batch reservation—so no team ever runs out midway through a critical sequence.
Bulk users sometimes ask about solvation, filtration, or re-dissolution oddities experienced with “equivalent” products sourced elsewhere. To answer these, we routinely re-run bench trials in our technical support lab, simulating the same pathways as our customers. Results often reveal finer points: how our material dissolves faster and remains stable across a broader pH or temperature window, minimizing downtime and loss in production lines.
Custom requirements are met by working directly with formulation and process design engineers right here—avoiding the slow ping-pong of third-party samples. We build trust through transparency in lot selection and clear communication about any anticipated shifts or upgrades in production methods.
Manufacturers cannot ignore the risks—from contamination during storage through mishandling during blending. Rather than broad claims, we invest in preventive action at source: desiccant-integrated storage, scheduled QC retesting, and real-time traceability down to specific sub-lots. In response to repeated customer feedback, we introduced technical bulletins addressing points like optimal reconstitution, stability in different solvents, and waste stream handling.
Over years, process upsets—like equipment downtime or inadvertent temperature spikes—have taught us that contingency matters. Every critical parameter, from agitation speed to solvent charge, is logged and monitored on dedicated systems. Backup production lines allow us to keep up with unplanned surges in demand, reducing wait times for routine orders. This hands-on vigilance means clients have rarely faced batch substitution or abrupt cancellations.
There’s another layer of precision baked into our team culture: Each incoming inquiry about application or material specifics is routed straight to our technical personnel who actually manage that area of the plant. Empathy for the user’s troubleshooting process guides material recommendations—our advice comes from the lived experience of having fixed similar problems right at the source.
Waste management becomes a challenge with halogenated nitroaromatics, especially in scale-up contexts. Our plant follows best practices for handling high-oxidant streams and avoids relying on third-party waste disposal contracts alone. We monitor regulatory shifts and integrate new protocols rapidly, knowing our own team’s safety and community reputation depend on getting these steps right.
Direct involvement in manufacturing makes trends visible faster. In years past, we’ve observed growing demand for specialized pyridine derivatives—not only as core scaffolds for pharmaceutical candidates, but as intermediate stages in electronic chemicals and high-performance materials. Users want molecules that show both synthetic flexibility and regulatory support. We provide documentation attesting to absence of restricted impurities, and ensure compliance with global transport and packaging norms.
The laboratory and process environment continue to shift toward automation and digital analysis. We adapt by adding automation in critical steps: closed-system crystallization and vacuum drying have trimmed out previously problematic batch variability. Where robotics interface with our material, low particulate count and narrow melting windows play an outsized role in success rates, as our process engineers confirm on repeated cycle tests.
From our plant-side viewpoint, sustainability pressures continue to rise. Being responsible for both environmental output and input purchase, we select raw materials from audited, conflict-free sources, effecting small but important changes such as solvent recycling and waste stream minimization. Feedback from eco-focused clients has spurred us to lower the overall process water and energy footprint year on year.
Technical documentation available with our shipments details the product’s analytical fingerprint and guidance for optimal handling. Researchers can start projects with immediate confidence, avoiding surprises mid-way through custom synthesis or scale-up.
Reliable chemical manufacturing means more than marketing claims. In daily practice, we see the weight of a trusted relationship—repeat requests, shared troubleshooting, and straight communication at times of change. We provide documented, factual support—full instrumental data, impurity breakdowns, and retention samples are policy, not a privilege. This culture propels us to refine our product year after year, knowing each gram must meet the highest standards for purity, safety, and applicability.
For those interested in what can set a pyridine derivative apart, our door is open. Direct involvement with manufacturers—real chemical workers, not just middlemen—continues to drive innovation and practical solutions in every branch of chemistry depending on reliable intermediates like 5-bromo-2-hydroxy-4-methyl-3-nitropyridine.