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7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One

    • Product Name 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One
    • Alias 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-3-one
    • Einecs 629-785-2
    • 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

    458704

    Iupac Name 7-Bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one
    Molecular Formula C7H5BrN2O2
    Molecular Weight 229.03 g/mol
    Cas Number 256875-25-5
    Appearance Off-white to light yellow solid
    Solubility Slightly soluble in organic solvents
    Smiles C1=CC2=NC(=O)OC=C2C=C1Br
    Pubchem Id 16092533
    Inchi InChI=1S/C7H5BrN2O2/c8-4-1-2-5-6(3-4)9-7(11)12-10-5/h1-3H,(H,9,11)
    Storage Conditions Store in a cool, dry place

    As an accredited 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One 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-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One

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

    As the direct manufacturer of 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One, we systematically enable downstream industries relying on advanced heterocyclic intermediates to meet stringent compliance and production requirements. We deliver material with consistent traceability for use in select specialized fields. Below, review the established application scenarios where our raw material integrates at key stages of value-added manufacturing.

    1. Pharmaceutical Intermediate Synthesis for Antineoplastic APIs

    Downstream pharmaceutical API manufacturers use this compound as an essential building block for the preparation of highly targeted kinase inhibitors and other antineoplastic drug candidates. The unique brominated heterocycle structure supports improved binding profiles during medicinal chemistry development, especially for small-molecule cancer therapies requiring precise heteroaromatic scaffolds.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • FDA 21 CFR part 211 (cGMP for finished pharmaceuticals)
    • European Pharmacopeia monographs for intermediates (Ph. Eur.)
    • Chinese Pharmacopoeia ChP (when exported to China)

    Typical usage ratio

    • 0.5%–2.5% w/w relative to total reaction mixture, precise ratio depends on target API structure and reaction pathway optimization during process development and scale-up

    Downstream process integration

    • Enters as a named starting material during registered synthetic route for heterocycle assembly; typically charged after solvent and catalyst pre-mix in stepwise condensation or cross-coupling reactions, followed by downstream purification and conversion steps

    Final product types

    • Clinical-stage and commercial anticancer APIs such as small-molecule kinase inhibitors used in targeted therapy
    • Research-grade active pharmaceutical intermediates for lead optimization

    2. Custom Fine Chemical Synthesis for Research Reagents

    Chemical research companies incorporate this heterocyclic material when developing novel heteroaryl-building blocks for custom synthesis, library generation, and early-stage R&D reagents. Due to its functional group compatibility, it serves as a key intermediate that enables modular transformations for SAR studies in medicinal chemistry pipelines.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems
    • REACH registration for chemical safety compliance in the European Union
    • Global Harmonized System (GHS) for labeling and safety data management

    Typical usage ratio

    • Ranges from 1% up to 10% w/w in batch libraries, with adjustment based on substrate reactivity and intended structure diversity

    Downstream process integration

    • Added at initial setup phase as a core scaffold in custom combinatorial chemistry; undergoes substitution, coupling, or ring transformation depending on design of research product

    Final product types

    • Custom reference standards
    • Analytical research reagents for academic and commercial laboratories
    • Heterocycle-based screening libraries for pharmaceutical development

    3. Advanced Material Development for OLED and Electronics Chemicals

    Electronic materials manufacturers integrate this compound as a nitrogen- and oxygen-containing aromatic precursor for the formulation of specialized hole-transport materials and charge-modulating intermediates in organic light-emitting diode (OLED) devices. Its bromo group enables efficient cross-coupling with aryl or heteroaryl partners, facilitating tailored opto-electronic properties in finished devices.

    Industry compliance standards

    • RoHS Directive (Restriction of Hazardous Substances in Electrical and Electronic Equipment)
    • IEC 62474 material declaration standards
    • ISO 14001:2015 for Environmental Management Systems during electronics production

    Typical usage ratio

    • Applied at 0.2%–2% by weight in precursor composition, variable based on target electronic layer formulation and film thickness requirements

    Downstream process integration

    • Introduced during monomer synthesis of hole-transport device layers; typically participates in Pd-catalyzed C–C or C–N couplings, followed by purification prior to thin-film deposition

    Final product types

    • OLED stack components (hole-transport and electron-blocking layers)
    • Functionalized aromatic precursors for conductive polymers
    • Electronic-grade specialty monomers

    4. Agrochemical Intermediate Production for Crop Protection Agents

    Companies engaged in crop protection chemistry use this bromo-heterocycle as an advanced intermediate during the assembly of active ingredients in herbicides and fungicides with targeted activity against specific pathogens. Its molecular motif can boost selectivity and metabolic stability in new agrochemical entities subjected to regulatory review.

    Industry compliance standards

    • FAO/WHO Joint Meeting on Pesticide Specifications (JMPS)
    • EU Regulation (EC) No 1107/2009 (placing of plant protection products on the market)
    • OECD Guidelines for the Testing of Chemicals (relevant for toxicology and residue studies)
    • ISO 9001:2015 for consistent quality systems in agrochemical manufacturing

    Typical usage ratio

    • 0.5%–3% w/w, optimized in formulation labs based on target AI structure and conversion efficiency during scale-up

    Downstream process integration

    • Introduced as a core scaffold during registered route for agrochemical API; typically charged after solvent and base addition, followed by cyclization or halogen-exchange reactions and subsequent purification

    Final product types

    • Registered herbicide and fungicide active ingredients
    • Technical concentrate intermediates
    • Pilot-scale research samples for new molecule discovery

    5. Specialty Dye and Pigment Intermediate Manufacturing

    Specialty colorant and pigment producers adopt this compound as a functional intermediate for the production of complex heterocyclic dyes, particularly those requiring electron-rich aromatic systems for high photostability or selectivity in fluorescence applications. Its dual oxygen and bromine groups allow for controlled substitution to adjust chromophoric properties during synthesis.

    Industry compliance standards

    • REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals)
    • ISO 9001:2015 (for pigment and dye manufacturing)
    • EN 71-7 (Safety of toys - Finger paints, applicable for pigments in consumer goods coloring)

    Typical usage ratio

    • Applied at 0.3%–4% in batch reactions, with adjustments made to achieve target absorption and emission profiles in pigment synthesis

    Downstream process integration

    • Enters pigment synthesis at the stage of core ring functionalization; participates in oxidative cyclization or cross-coupling to form extended conjugated systems, with downstream blending or salt formation

    Final product types

    • High-performance fluorescent dyes
    • Specialty pigments for inks and coatings
    • Colorant intermediates for advanced imaging materials
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    More Introduction

    7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One: A Closer Look at Its Role in Scientific Research

    In chemical research, 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One often comes up as a reliable backbone for investigators digging into new molecular pathways. Years ago, when I first encountered oxazine derivatives, it was clear that small tweaks in their structure could lead to surprising features. This particular compound, distinguished by the bromo group at the 7-position, takes advantage of a unique combination: an aromatic bromine and a fused heterocyclic framework. Every chemist who’s counted on specificity in molecular reactions knows the value of such details.

    Model and Key Features Based on Real-World Use

    The specific inclusion of a bromine atom gives 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One a reactivity profile that chemists look for in the search for smart intermediates. If you’ve ever scaled up a reaction and found an unexpected byproduct, you understand the importance of having options with clear behavior. This compound avoids the confusion created by structural ambiguity. It anchors its 2H-pyrido[3,2-b][1,4]oxazine core with a bromine at a spot that straightforwardly cues certain coupling reactions.

    Specifications go beyond just weight and melting point for people working at the bench. Purity makes a difference. Analytical methods, especially NMR and HPLC, spotlight the impact of trace isomers or instability. Nobody wants to troubleshoot a reaction for hours, only to discover a hidden impurity sabotaging the yield. In my experience, high-quality lots of this material tend to show impressive color consistency and crystalline stability, which offers confidence during both storage and use.

    Researchers who focus on heterocyclic chemistry appreciate how solid intermediates like this one cut down on wasted effort. It’s not just about reactivity — it’s about knowing a trusted standard won’t throw a wrench into multi-step syntheses. The consistency in solubility and thermal properties from one bottle to the next keeps experiments reproducible. That’s peace of mind hard to put a price on.

    Applications: Everyday Lessons from the Bench

    Anyone who’s worked late trying to tune a combinatorial library understands how the structural diversity among pyrido-oxazine building blocks expands discovery. With its bromo substituent, 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One shows up most often in pharmaceutical chemistry programs, especially where Suzuki–Miyaura or Buchwald–Hartwig couplings pave the way for novel analogs. I recall sessions poring over reaction journals, seeing this compound’s core pop up as a popular scaffold for kinase inhibitor design studies and CNS-targeted molecules.

    It’s not just pharmaceutical work. Agrochemical and material sciences teams exploring bioactive heterocycles lean toward readily functionalized cores like this. The orchestration of leaving groups and electron-withdrawing substituents in one ring system makes certain transformations far more accessible. You start to appreciate this once you have to repeat the same transformation across a dozen analogs and notice how predictable the behavior becomes when using a reliable core.

    In real synthesis settings, the chemical’s behavior under mild to moderate conditions proves valuable, especially because some heterocycles fall apart under basic or high-temperature conditions. The robustness under standard lab protocols lets you focus on experimenting, instead of running stability trials every step of the way. I remember one project where switching to this bromo-oxazine actually simplified the entire synthetic plan, eliminating a purification step that was previously introducing doublets on NMR spectra due to close impurities.

    What Sets It Apart from Competing Scaffolds

    Comparing different bromo-heterocycles side by side reveals reasons for picking 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One over similar products. Many bromo-aromatics present handling issues: drifting volatility, sensitivity to light, or stubbornly low solubility in both polar and nonpolar solvents. Here, the oxazine core stabilizes the ring, taming some challenges found with the less-fused systems.

    Think about the extensive catalog of building blocks that crowd modern chemical supply lists. Some offer a reactive handle, but the rest of their structure drags along unwanted bulk or reactivity. Others promise cleanness, but their price or the availability for prompt restocking introduces barriers for scale-up or screening. My own frustration with scarce compounds taught me that a reliable supplier with sharp crystalline bromo-oxazines shortens project timelines, slashing time spent chasing down fresh material or revalidating purity dozens of times. Researchers serious about productive time in the lab recognize the ability to move from one scaffold to another, building new diversity with confidence that doesn’t depend on rolling the dice every batch.

    Matching up other functionalized pyridines or oxazines doesn’t always yield identical opportunities. Non-brominated analogs sometimes lack the right cross-coupling properties, while other halogen substituents could boost cost or complicate downstream steps. Bromine itself straddles that line between activation and manageability. From hands-on screening sessions, I saw how this scaffold satisfies teams needing efficiency, not just theoretical novelty.

    Supporting Safety and Environmental Responsibility in Practice

    Handling brominated heterocycles taught me respect for both safety and waste management. Efficient storage — cool, dry spaces, sealed amber bottles — ensures reliability and shelf life, but workplace ventilation and gloves must back up every transfer. Waste disposal stands out; every responsible chemist separates and neutralizes brominated solvents or residues to limit wider environmental impact. These steps not only protect individual well-being, but also support the broader commitment to sustainable research.

    Experience in open-access chemical libraries made one reality plain: irresponsible handling undermines discovery. A lost batch or an accidental spill eats into budget and morale, especially during critical project phases. The best setups keep everything clear and simple: well-labelled containers, checklists for transfer, and education on best practices. These measures do more than cover compliance. They reinforce trust between team members and set standards future colleagues inherit.

    Addressing Real Challenges in Sourcing and Quality

    Researchers frequently vent about sourcing inconsistencies. Even a minor batch-to-batch variation in melting point, color, or particle size can send teams into troubleshooting spirals. Over years working with custom synthesis groups and catalog suppliers, I’ve learned the most respected sources for 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One are those that back each lot with a transparent analytical profile. Open access to spectral data, along with physical descriptions, prevents surprises during scale-up or analytical development.

    The costs of poor quality stretch far beyond wasted flask space. Failed scale-ups and unreproducible results present the risk of lost months in high-stakes drug discovery or materials innovation. Every published result, patent filing, or regulatory submission links directly back to source material integrity. Trusting intermediates to live up to label claims fuels progress much more than any clever retrosynthesis plan alone. Reliable sources saving researchers hours from unnecessary troubleshooting or needless precautionary purifications soon pay for themselves.

    Informed Selection: Paths to Better Outcomes

    For labs choosing 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One, honesty in experience reduces wasted cycles. Before settling on a specific batch, a few practical checks make the process smoother. I’ve found it pays off to scan available NMR and HPLC profiles, looking for clean baselines without phantom peaks. Simple test reactions — even on milligram scale — reveal quirks in solubility or reactivity rarely flagged in textbook summaries.

    Building relationships with regional distributors can shorten procurement timelines and support last-minute project shifts. Communication with suppliers about packaging, lot size, and delivery windows changes the game for teams working on grant timelines or commercial deadlines. Back-and-forth on questions about storage, shelf life, and environmental conditions provides the clarity needed to plan ahead, especially when pilot studies turn into full pipeline runs.

    Improving Everyday Lab Operations with Reliable Materials

    Looking back on teamwork in exploratory chemistry, I credit a big share of smooth projects to solid, well-characterized reagents. Errors often followed cases where curiosity got the better of basic verification — jumping straight into multi-step syntheses or merged reaction protocols, only to hit snags from an unknown contaminant. Experience taught me the simplicity of starting with trusted, transparent building blocks erases a surprising number of headaches.

    The most successful research crews I’ve worked alongside didn’t spend every day reacquiring standards or fighting with tricky purification columns. Instead, knowing exactly what’s inside each bottle, and why each step in the route counted on that reliability, set a clear path from idea to result. That’s the working definition of progress in crowded, busy labs: less energy spent fixing issues, more energy invested in results that expand understanding.

    Future Directions and Ongoing Evolution

    Change keeps every scientific field moving forward. Building block molecules evolve along with better methods and shifting discovery priorities. The story of 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One fits into that pattern. As access to higher-purity lots improves, and environmental standards rise, the best chemical sources adapt to match expectations. Experiences across hundreds of researchers underscore a simple truth: advancement relies on both strong molecular building blocks and conscientious stewardship in handling and sourcing.

    More recently, adaptive practices in supply chain management have made these specialty chemicals more widely available in different regions. Labs can now design exploratory programs around promising cores — like this bromo-oxazine — with a clear understanding that supply interruptions or variable quality no longer limit discovery as before. This change continues to open new avenues, especially for early-career researchers or interdisciplinary teams at smaller institutions, eager to push the edge of what’s possible without being held back by inaccessible building blocks.

    Reflections from Hands-on Work

    Some of my most instructive moments came from troubleshooting failed reactions — flipping through pages of lab notebooks, cross-checking protocols, and eventually tracing a problem to an overlooked material quality issue. These setbacks sharpened my criteria not just for choosing the right core, but also for evaluating batches up front. The lessons extend beyond individual projects: the ripple effect of wasted time, delayed publications, or even missed windows for intellectual property filings highlights the real-world stakes.

    For younger colleagues or students just entering the field, attention to reagent quality feels less glamorous than optimizing a synthetic pathway or hunting for new biological activity. Over time, it becomes clear that chemistry built on a foundation of careful, informed choices — not just intellect but also grounded, conscientious preparation — yields discoveries that endure.

    Bringing It All Together in the Research Environment

    Trusted intermediates like 7-Bromo-2H-Pyrido[3,2-B][1,4]Oxazine-3(4H)-One occupy an important spot in daily research. Choosing well-characterized, thoroughly vetted materials doesn’t just lighten the workload — it opens new frontiers in synthetic strategy, pharmacological creativity, and materials research with clarity. The days spent matching protocols, confirming purity, and chasing reproducible outcomes boil down to building and maintaining that trust.

    No matter the branch of discovery — small molecule therapeutics, new agricultural compounds, or advanced material design — the lessons from years of handling and developing pyrido-oxazine derivatives echo. Maintain rigor in selection, transparency in data sharing, and responsibility in handling, and productive, innovative science naturally follows. Every new outcome adds another chapter, improving what current and future researchers can achieve with the right building blocks, well chosen from the start.