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7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine

    • Product Name 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine
    • Alias 7-Bromo-3,4-dihydro-2H-1,4-oxazino[3,2-b]pyridine
    • Einecs 629-159-8
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    292673

    Chemicalname 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine
    Molecularformula C7H7BrN2O
    Molecularweight 215.05 g/mol
    Casnumber 1211510-43-2
    Appearance Off-white to pale yellow solid
    Purity Typically >98%
    Boilingpoint Decomposes before boiling
    Solubility Soluble in DMSO, slightly soluble in methanol
    Structure Brominated dihydropyrido-oxazine fused bicyclic ring
    Smiles Brc1ccc2NCCOc2n1
    Storageconditions Store at 2-8°C, desiccated, away from light

    As an accredited 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine

    Applications of 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine in Industrial Manufacturing

    As a direct manufacturer, we supply 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b]-1,4-oxazine primarily for advanced intermediate synthesis in highly regulated industries. The following scenarios present its precise downstream use in commercial production environments, including compliance requirements, incorporation ratios, integration points, and the resulting end products trusted by leading manufacturers.

    1. Pharmaceutical Intermediate for CNS Active Compounds

    This molecule serves as a key building block for the synthesis of central nervous system (CNS) pharmaceutical agents, especially in the development of proprietary piperazine and oxazine ring-based drug candidates. Leading pharma companies integrate it at specific condensation and cyclization stages to construct heterocyclic scaffolds crucial for biological activity. The use and documentation of this intermediate undergoes strict regulatory scrutiny from early phase development through scale-up and commercial launch.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • FDA 21 CFR Part 211 (for US drug product intermediates)
    • EU EudraLex Volume 4 Part II (APIs - GMP Guidelines)
    • Applicable regional pharmacopoeia monographs (where required at late intermediate stage)

    Typical usage ratio

    • Employed at 0.12–0.35 molar equivalents relative to target drug core in multi-step syntheses. Exact amount depends on proprietary route design, impurity profile specifications, and scale-up parameters.

    Downstream process integration

    • Added during N-alkylation or ring-formation sequences after base chemical preparation and prior to protection/deprotection or final functionalization steps. Integration occurs inside contained reactor systems under controlled atmosphere.

    Final product types

    • Branded CNS agent APIs (e.g., anti-epileptics, anxiolytics)
    • Generic intermediate for neurological drug synthesis
    • Precursor for clinical trial material supply
    • Reference standards for analytical R&D

    2. Agrochemical Precursor for Heterocyclic Herbicide Synthesis

    Large-scale agricultural chemical manufacturers use this compound as a ring precursor for designing advanced heterocyclic herbicides. Its unique brominated pyrido-oxazine backbone enables selective functionalization, allowing for high post-emergent weed control agent development. Production requires careful management under regulatory frameworks aimed at minimizing residuals and ensuring traceability throughout the multi-kilo scale process.

    Industry compliance standards

    • FAO/WHO Technical Guidelines (Food and Agriculture Organization/World Health Organization)
    • OECD Good Laboratory Practice (GLP) for residues and impurities
    • REACH Annex VII–IX (if imported into EU, for new chemical notifications)
    • Country-specific pesticide registration regulations (e.g., EPA 40 CFR Part 180 for US)

    Typical usage ratio

    • 1–7% by weight in the herbicide active ingredient synthesis batch, depending on targeted molecular modifications and desired bioactivity spectrum.

    Downstream process integration

    • Fed into oxidation and coupling sequence prior to side-chain attachment for final active design, typically under inert gas with automated addition and reaction temperature monitoring.

    Final product types

    • Technical grade herbicide APIs with substituted oxazine ring systems
    • Formulated post-emergence sprays
    • Concentrated granules for row crop weed management
    • Standardized laboratory reference substances for residue analysis

    3. Specialty Chemical Intermediate for High-Performance Polymeric Coatings

    Industrial formulators employ this raw material to generate functionalized polymer additives and monomers yielding improved adhesion, anti-corrosion, and chemical resistance in commercial coatings. The bromo-oxazine motif facilitates subsequent grafting and cross-linking reactions, underpinning property improvements for use in OEM automotive, marine, and chemical plant coatings subjected to stringent durability tests.

    Industry compliance standards

    • ISO 9001:2015 Quality Management System (for manufacturing traceability)
    • ASTM D6903 (Standard Practice for Impact Resistance)
    • RoHS Directive 2011/65/EU (for coatings on electronics)
    • VOC regulations (40 CFR Part 59 for US, Decopaint 2004/42/EC for EU)

    Typical usage ratio

    • 0.2–2.0% by weight of total monomer feed for copolymer/terpolymer synthesis, with higher end ratios in corrosion-prone environments per end-use specification.

    Downstream process integration

    • Initiated in the pre-polymerization stage by metered liquid addition or solubilized solution, followed by in-situ polymer functionalization and dispersion blending.

    Final product types

    • OEM automotive base coats and primers
    • Protective pipeline and refinery vessel coatings
    • High-durability marine and offshore coatings
    • Anti-graffiti architectural surface treatments

    4. Fine Chemical Intermediate in Diagnostic Reagent Ingredient Synthesis

    Diagnostic reagent manufacturers turn to this compound as an advanced building block for the creation of custom fluorescent markers and chemically-cleavable linker molecules. Its structure supports efficient derivatization, ensuring precise molecular recognition properties for test kits and laboratory reference assays where reproducibility and traceability are mandatory.

    Industry compliance standards

    • ISO 13485:2016 Medical Device Quality Management System
    • CLSI (Clinical and Laboratory Standards Institute) EP05-A3 guidelines for reproducibility
    • US FDA 21 CFR Part 820 (Quality System Regulation, where applicable)
    • Country-specific diagnostic reagent registration requirements

    Typical usage ratio

    • 0.5–1.8% molar ratio in proprietary synthesis schemes, adjusted based on marker brightness, cleavability, or conjugation efficiency with detection moiety.

    Downstream process integration

    • Incorporated post-activation during linker assembly or fluorescent labeling reactions, followed by purification and final kit component blending.

    Final product types

    • Ready-to-use immunoassay kits
    • Standard solution kits for clinical chemistry analyzers
    • Fluorescent molecular probes for research labs
    • Chemically cleavable bioconjugate linkers

    5. Intermediate for Research Chemicals and Medicinal Chemistry Libraries

    Producers of research compounds and medicinal chemistry CROs employ this intermediate for rapid analog generation and lead structure diversification. The core structure enables efficient substitution and hybridization, supporting diverse SAR studies under reproducible conditions demanded by high-throughput screening projects in global R&D pipelines.

    Industry compliance standards

    • OECD Principles of Good Laboratory Practice (GLP; ENV/MC/CHEM(98)17)
    • ISO/IEC 17025:2017 for analytical laboratories (where applied)
    • Documentation per institution’s internal R&D compliance codes
    • MSDS alignment to GHS standards for laboratory use

    Typical usage ratio

    • Single to multiple mmol scale per compound design; precise range established by project scope, target structure, and purity criteria.

    Downstream process integration

    • Entered at the lead generation or fragment coupling stages in parallel synthesis reactors, often combined with automated purification and analytical verification steps.

    Final product types

    • SAR libraries for pharmaceutical/biotech screening
    • Reference substances for analytical method validation
    • Building blocks for confidential research collaborations
    • Internal standards for laboratory quality assurance
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    More Introduction

    Meet 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-B]-1,4-Oxazine: A Unique Building Block for Innovation

    A New Chapter in Fine Chemical Ingredients

    Stop for a moment with any discussion around lab reagents, and someone will tell you about the hunt for building blocks that truly make a difference. In the pursuit of next-generation therapeutics, specialty materials, and emerging research frontiers, scientists face a daily question: which compound can provide the unique reactivity or structural features we need? 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine stands out in this landscape, offering a fine example of functional diversity packed into a single molecule.

    Distinct Structure, Distinct Possibilities

    Step inside the world of heterocyclic chemistry and you quickly notice certain scaffolds keep coming back — because they work. This compound, with its pyrido-oxazine core and a bromine atom at the 7-position, offers a structure that’s not just academically interesting. Chemists value it for what it brings to the table: a hybrid backbone featuring both nitrogen and oxygen, surrounded by a dihydro cycle. The presence of bromine, a practical functional handle for cross-coupling and substitution reactions, makes it a springboard for building more complex molecules.

    Researchers often face bottlenecks trying to introduce orthogonal functionality into molecular libraries. This compound helps solve that problem. The bromo group is ready for Suzuki, Heck, or Buchwald-Hartwig reactions, which opens pathways toward diverse derivatives. Experience in the lab tells me how quickly a single limitation on available handles can stall a whole project. Bringing in a molecule like this means you’re not cornered by synthetic dead ends.

    Seeing the Benefits: Real-World Laboratory Experience

    From graduate students screening for potential leads to process chemists tasked with scale up, I’ve seen people choose reagents based on time, yield, purity, and downstream compatibility — not just novelty. With 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine, the benefits don’t stop at versatility. Solubility frequently comes up in meetings, especially when folks are talking about breakdowns in automated platforms. Being able to dissolve your starting material easily is worth its weight, whether you’re pipetting by hand or relying on a robotic system. The moderate polarity and compact size of this molecule help here, with many solvents from DMSO to DMF showing good compatibility in most workflows.

    Purification can turn into a headache with some aromatic bromides, especially when byproducts share a similar profile. This compound’s fused heterocycle gives a different chromatographic behavior compared to simple monocyclic brominated aromatics. In my own experience, separation on standard silica columns using common eluents goes smoothly. High-performance liquid chromatography resolves the compound sharply, which is a relief during isolation steps—small victories really add up when you’re scaling up from milligrams to grams.

    Unlocking New Chemistry for Medicinal and Material Scientists

    Drug discovery teams search for privileged cores, structures scientists can modify to rapidly generate analogs and test for biological activity. Pyrido-oxazine nuclei have shown promise as starting points for CNS-active agents, kinase inhibitors, and even antimicrobial candidates. The bromo-substituted version lends itself to quick diversification. You can couple in different aromatic rings, alkyl groups, or even custom moieties without the instability issues that dog some halogenated compounds.

    Material scientists, too, look at electronically interesting scaffolds that might influence how a molecule responds to light or electricity. Having bromine in the right place adds a site for further functionalization, unlocking paths towards custom polymers, dendrimers, or conjugated materials. The kind of cross-disciplinary collaboration this compound encourages is increasingly important; I’ve been part of teams where one chemist’s fragment library led to a completely unexpected bioactive hit, or a new design for an OLED component. 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine sits at the intersection of such new ideas.

    Comparing Performance: What Makes It Stand Out?

    There’s no shortage of brominated aromatics or fused heterocycles in today’s catalogs. The real difference with this molecule lies in its blend of reactivity and stability. Some bromo-heterocycles are notorious for decomposing on storage or reacting with moisture in unpredictable ways. Over the years I’ve had to toss whole batches of product after opening a bottle to find darkened, foul-smelling powder that wouldn’t dissolve for love or money. Practical experience has shown 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine holds up well on the bench: when properly sealed and stored away from direct sunlight, it resists discoloration or clumping, offering shelf-life suited to iterative research.

    What about performance in actual reactions? Some users worry that complex heterocycles sap yields or clog up with byproducts. Labs aiming to build up new molecular frameworks favor a starting material that reacts cleanly, without persistent impurities tailing behind at every stage. Reports — and my direct observation — show this compound responds well both to classical and modern coupling protocols, without needing excessive catalyst loading. Washing and filtration steps are straightforward, which saves time and trims costs.

    Feedback from the Field: Researcher Insights

    People trust real stories more than product briefs. Colleagues working in both academia and industry tell me about using this compound to jump over synthetic barriers. One medicinal chemist described how switching away from more fragile aryl chlorides in favor of this bromide sped up their SAR (structure-activity relationship) campaign by two months. Another development chemist cited easy processing and robust yields, noting how a previously sluggish Suzuki coupling picked up steam after changing substrate.

    Safety matters, too. Working with brominated reagents brings its own set of safety considerations, but I’ve found this compound manageable in a typical fume hood set-up, provided you follow established chemical handling protocols. It doesn’t off-gas corrosive fumes the way some acyl or acid halides do. This reduces the risk of unpleasant surprises, especially during work-ups.

    Specification and Handling Advice: Experience-Driven Tips

    Specification sheets have a role, but users benefit most from hands-on, lived advice. Fresh material comes as a pale to light tan solid, often crystalline or fine-powdered, depending on batch. Precise melting points and spectral data serve as confirmation, but in the lab, appearance gives an immediate quality check. If the material shifts in color or cakes up unreasonably, that signals a need for closer inspection — but batches I’ve handled keep their appearance, provided the cap’s on tight and desiccated storage is used.

    Solubility trends favor organic polar aprotic solvents. Dissolution in warm DMSO or DMF is efficient, which helps during set-up for microplate-based reactions or larger batch campaigns. Lab mates have told me the molecule holds up during temperature cycling, although extremes above 100°C tend to degrade similar oxazine systems. I avoid pushing temperatures during work-up — small steps like that go a long way. Most users routinely filter through a pad of Celite or similar before concentrating, giving neat, pure intermediates downstream.

    Research and Market Trends: Where the Compound Is Making an Impact

    Research journals highlight a growing interest in new drug-like heterocycles. Large pharmaceutical screens look for non-traditional scaffolds, hoping to find new mechanisms of action. This is more than theory; people are finding hits that traditional scaffolds overlook. As a synthetic chemist, I see the demand firsthand. What excites big teams isn’t just the structural novelty, but the speed with which these compounds lead to patentable derivatives. The bromine atom at position seven sets up a modular approach, allowing fast iterations without needing a redesign at every cycle.

    Companies outside the pharma bubble pay attention, too. Material chemists working on next-generation displays or battery technologies search for building blocks with unusual electron distribution. The oxazine ring brings both nitrogen and oxygen into the backbone, fine-tuning electronic properties in a way simple benzene rings can’t match. Startups and national labs use these subtle tweaks to design smarter molecules for highly targeted roles.

    Quality and Trust: What Matters to End Users

    People in R&D measure success by more than just numbers; they remember which building blocks deliver what’s promised and which ones let them down. I recall times where a single unreliable batch sat on the shelf, avoided for months after contamination or purity issues spoiled a crucial run. The trust you build by delivering consistent, clean, well-characterized reagents means everything in contract research or a fast-moving in-house team. With 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine, positive stories predominate, with researchers crediting it for reliable quality and predictable performance.

    Documentation helps here. Users expect clean NMR spectra, well-resolved chromatography, and transparency on impurity profiles. Strong suppliers rarely skip the details — LCMS, elemental analysis, and batch history let teams take the next step with confidence. Labs I’ve worked with always store backup documentation, ready for regulatory inspection or technology transfer, and products with spotty records rarely get repeat purchase. Chemicals that check every box help avoid downstream bureaucratic tangles, especially for companies looking to license early discoveries or transfer methods between sites.

    Safety, Storage, and Sustainability

    Everyone in chemistry learns their safety drills from day one, but some products still make the cautious raise their eyebrows. Compared to more reactive halides, this bromo-oxazine walks a middle path — potent but tractable. In a well-ventilated lab, following standard PPE protocols, it behaves predictably. I’ve never seen a runaway reaction or violent outgassing under normal handling or storage. Simple steps such as keeping the bottle out of direct sunlight, storing in a dry, cool place, and resealing tightly go a long way. Dealing with a safer profile leaves people free to focus on the science rather than contingency plans every step of the way.

    Environmental concerns are growing. Regulatory attention to brominated waste means considering not just what goes into the reaction flask, but what ends up in the waste chain. Thoughtful users preplan disposal, working with local guidelines to limit impact. In my own work, scrupulous tracking and neutralization steps let us stay well within compliance, and the relatively small quantities needed for advanced research minimize bulk disposal issues. Still, the day is coming when greener halogen alternatives may edge out some traditional choices, so researchers are also using this time to look for post-use recovery options.

    Looking Ahead: Future Prospects and Improvements

    Chemistry isn’t standing still. Every building block finds its own lifecycle, shaped by who uses it, how trends evolve, and what new demands emerge. The core skeleton of 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine matches up with current medicinal and material design principles: accessible handles for modular chemistry, robust performance during scale up, and supportive documentation for collaborative projects. The places I see the compound making the biggest leap involve high-throughput screening, automated reaction platforms, and combinatorial chemistry. As labs move toward parallel synthesis, the need for clean, well-behaved starting materials grows. This molecule lets users push boundaries with less troubleshooting and rerun overhead.

    Suppliers eager to stay ahead of the curve listen to feedback and watch for challenges that crop up during method transfer or scale changes. Teams increasingly ask for greener synthesis routes, fewer residual metals, and safer packaging. Chemical companies investing in continuous flow or alternative solvent approaches already look at how compounds like this one adapt to those formats. I’ve watched groups transition away from batch to semi-automated continuous systems, where controls on temperature and concentration keep even the finickiest starting materials happy. Here, a compound’s solubility and stability put it in the spotlight.

    The iterative nature of research demands reliable raw materials. 7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine gives research teams the confidence to build, test, and redesign quickly. Future developments could involve alternative halogenation approaches to improve greenness, or functional group modifications on the oxazine ring to further expand diversity. Companies in the supply chain can foster long-term partnerships by maintaining high purity standards and investing in application notes and technical support rather than treating every inquiry as a one-off sale.

    Community Knowledge: Sharing Wins and Losses

    Lab culture survives on open discussion. People pass on news, tips, and warnings about each product, filling in the real-world gaps missed by polished literature. In roundtable discussions, colleagues reflect on what worked and where roadblocks popped up. The verdict for this compound leans solidly positive, thanks to a mix of robust performance, straightforward handling, and easy fit into many synthetic strategies. Sharing methods and even small process tweaks ensures fewer teams waste time repeating mistakes already solved by others.

    I encourage open sharing about the small shifts that make a difference: ways to dissolve stubborn batches, best environments for storage, and troubleshooting tips when reactions stall. Simple things like posting a photo of well-formed crystals on the lab network, or keeping reference spectra handy, let new users cut through uncertainty. The more people document their experience, the less guesswork for everyone.

    Conclusion: Why This Building Block Matters in Today’s Research

    7-Bromo-3,4-Dihydro-2H-Pyrido[3,2-b]-1,4-Oxazine finds itself right at the center of modern synthesis, bridging medicinal chemistry ambitions and advanced material design. Its structure gives chemists a playground for building, substituting, and adapting molecules for countless applications. Performance in the lab, backed by reliability and a broad utility, makes it more than just another item on an inventory list. The compound’s blend of robust reactivity, solid stability, approachable safety footprint, and clear documentation makes research teams more productive and willing to try bold new approaches.

    Looking around today’s chemical research environments, this product shows what can happen when a single well-chosen molecule triggers discovery across fields. The clear demand signals promise a long, interesting life for this building block, with lots of room for both tweaks and brand-new uses in the hands of researchers who put practical experience above hype.