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5,8-Dibromobenzopyrazine

    • Product Name 5,8-Dibromobenzopyrazine
    • Alias 5,8-Dibromoquinoxaline
    • Einecs 218-746-2
    • 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

    778998

    Product Name 5,8-Dibromobenzopyrazine
    Cas Number 26212-71-1
    Molecular Formula C8H4Br2N2
    Molecular Weight 303.94
    Appearance Light yellow to off-white powder
    Melting Point 279-281°C
    Solubility Slightly soluble in organic solvents
    Purity Typically ≥ 97%
    Smiles Brc1cc2nc[nH]c2cc1Br
    Inchi InChI=1S/C8H4Br2N2/c9-5-1-3-7-6(2-5)8(10)12-4-11-7/h1-4H

    As an accredited 5,8-Dibromobenzopyrazine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 5,8-Dibromobenzopyrazine

    Applications of 5,8-Dibromobenzopyrazine in Industrial Manufacturing

    5,8-Dibromobenzopyrazine serves as a strategic intermediate for a range of high-value industrial manufacturing sectors. As an original manufacturer, we supply this specialty raw material for several precise downstream applications that rely on its unique chemical reactivity and purity in controlled synthesis environments.

    1. Active Pharmaceutical Ingredient (API) Synthesis

    Pharmaceutical manufacturers incorporate 5,8-dibromobenzopyrazine in synthesis routes for advanced heterocyclic building blocks, particularly in oncology and anti-infective research pipelines. This compound participates in Suzuki, Stille, and palladium-catalyzed cross-coupling transformations to yield highly substituted pyrazine derivatives positioned in clinical candidate and lead compound libraries. Lab-scale to commercial batch processes require documented impurity control and traceability to support regulatory submissions and Good Manufacturing Practice validations.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP <795> Pharmaceutical Compounding – Nonsterile Preparations
    • FDA 21 CFR Part 211
    • EDQM CEP (when used in European dossiers)

    Typical usage ratio

    • 0.8–1.5 equivalents relative to coupling partner
    • Adjusted for target molecule scaffold and catalytic efficiency

    Downstream process integration

    • Introduced after formation of core heterocycle scaffold
    • Participates in late-stage functionalization, followed by purification by column chromatography or preparative HPLC
    • Critical in impurity profile tracking for DMF/CMC filings

    Final product types

    • Small-molecule oncology APIs
    • Antibacterial clinical candidates
    • Advanced pharmaceutical intermediates for contract manufacturing

    2. OLED and Organic Semiconductor Material Manufacturing

    Producers of optoelectronic materials use 5,8-dibromobenzopyrazine as a precursor in the design of conjugated molecules for organic light-emitting diodes (OLEDs) and OPV (organic photovoltaics). The compound enables targeted bromination points for subsequent arylation, supporting synthesis of electron-transport and hole-injection layers. Chemical purity and batch consistency must meet internal QC standards and supply chain audit requirements for electronic-grade material handling.

    Industry compliance standards

    • JEITA EIAJ EDR-4701 for electronic material purity
    • ISO 9001:2015 Quality Management Systems
    • RoHS Directive 2011/65/EU (for electronic components)
    • Internal customer-specific materials specifications

    Typical usage ratio

    • 5–12% by mol in target emitter or transport molecule synthesis
    • Depends on layer architecture and device type

    Downstream process integration

    • Engages in palladium-catalyzed cross-coupling as a core step
    • Used prior to deposition and purification of the final organics
    • Purification via vacuum sublimation or recrystallization for device-grade quality

    Final product types

    • OLED active layer materials
    • Organic photovoltaic bulk heterojunctions
    • Organic field-effect transistor (OFET) structures
    • Light-emission materials for display panels

    3. Agrochemical Intermediate Production

    Agrochemical formulators utilize 5,8-dibromobenzopyrazine as an intermediate for synthesizing novel pyrazine-based fungicides and insecticides. The brominated sites facilitate further selective functionalization, crucial for introducing groups that improve bioavailability and environmental breakdown. Production adheres to established protocols for purity, traceability, and environmental safety in line with sector-specific stewardship regulations.

    Industry compliance standards

    • FAO/WHO Specifications and Evaluations for Plant Protection Products
    • ISO 9001:2015 Quality Management Systems
    • REACH Regulation (EC) No 1907/2006 for registration
    • Local environmental and waste management directives

    Typical usage ratio

    • 10–25% of the total feedstock mass in advanced intermediate synthesis
    • Ratio varies by downstream desired modification

    Downstream process integration

    • Enters after initial chlorination or nitration of pyrazine
    • Undergoes further functional group additions, followed by crystallization or extraction
    • Subject to analytical QC and stability testing

    Final product types

    • Pyrazine-derived fungicidal actives
    • Insecticide intermediate compounds
    • Fine chemical intermediates for crop protection formulations

    4. Specialty Polymer Synthesis for Advanced Materials

    Advanced materials producers deploy 5,8-dibromobenzopyrazine as a monomeric building block in engineering polymers with tailored electronic and barrier properties. The compound introduces rigidity and specific electronic attributes into the polymer backbone via Suzuki-Miyaura or Buchwald-Hartwig coupling reactions. Quality specification demands include consistent molecular weight and minimal trace metal residues to ensure end-use system reliability and required mechanical performance over repeated cycles.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems
    • ASTM D638 for polymer tensile strength
    • RoHS Compliance for polymeric materials in electronics
    • OEM-specific physical/chemical property requirements

    Typical usage ratio

    • 2–15% molar incorporation in copolymerization processes
    • Adjusted for chain length and physical target properties

    Downstream process integration

    • Feeds into pre-polymer formulation before main polymerization step
    • Subject to in-process monitoring of molecular weight distribution
    • Final purification by solvent precipitation

    Final product types

    • Conducting polymers for flexible circuitry
    • High-barrier films in packaging applications
    • Membranes for battery separators or gas storage
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    More Introduction

    5,8-Dibromobenzopyrazine: Bridging Precision in Chemical Synthesis

    Introduction to 5,8-Dibromobenzopyrazine

    Imagine a laboratory, glassware neatly arranged, where the next breakthrough drug or innovative material starts with just a pinch of the right reagent. That’s where compounds like 5,8-Dibromobenzopyrazine come into play. Its chemical backbone, shaped by the benzopyrazine ring, carries a pair of strategically positioned bromine atoms. Small tweaks in a molecule’s blueprint, such as these bromine substitutions, open new directions for both research and industry. This molecule stands as a prime example for anyone working in pharmaceuticals, advanced materials, or organic synthesis—its value stretches beyond what the label hints at.

    A Closer Look at Its Structure and Appeal

    The first thing that stands out is the molecule’s arrangement. Adding two bromine atoms on the benzopyrazine ring doesn’t just change its weight or appearance; it transforms how the compound reacts. Bromine atoms are big and versatile—combine that with the benzopyrazine skeleton, and researchers can chase after entirely new chemical reactions. Having worked in a chemistry lab, I’ve seen colleagues reach for dibrominated intermediates when they want predictable reactivity. The functional sites open the door for nucleophilic substitutions and coupling reactions. That means building longer molecular chains or swapping parts of the structure becomes manageable instead of messy. In my own experience, having reliable dibrominated cores on hand saves both time and troubleshooting cycles.

    Specifications and Laboratory Context

    Quality matters every time scientists trust their results to a reagent. Those working with 5,8-Dibromobenzopyrazine usually expect a white to pale yellow solid, with an unmistakable melting point and a purity that supports both routine reactions and more sensitive projects. Compounds with defined melting ranges and clear chemical shifts in NMR spectra speak to their reliability. Thanks to modern preparation methods, large variations or batch inconsistencies rarely arrive at the bench. I’ve seen those color changes and melting point drops that hint at impurities—chemists rarely miss such signs, especially when they’re working with price tags that reflect high-value research.

    Compared to other halogenated benzopyrazines, the 5,8-dibromo variant offers a direct route to further substitutions and metal-catalyzed transformations. Focusing two bromines at the right spots avoids unwanted side products and keeps pathways clear for downstream synthesis. It’s rare to see such versatility coupled with straightforward handling—no excessive volatility, no immediate concerns about decomposition under ordinary lab conditions.

    Cutting Through the Crowd: Differences that Matter

    Halogenated heterocycles like this aren’t rare—each manufacturer seems to bring out their own lineup, with chlorinated, fluorinated, and iodinated analogs crowding chemical catalogs. What separates 5,8-Dibromobenzopyrazine is its sweet spot between reactivity and control. Bromine sits heavier and more electron-rich than chlorine, so reaction partners find it easier to displace. Compared to the iodine analogs, though, brominated ones stay solid and stable in most storage setups. That means fewer headaches over shelf-life or spontaneous breakdowns.

    Lab work rewards small details. I’ve watched reactions with chlorinated cousins crawl along, needing tough conditions, while dibrominated compounds speed things up without excessive heat or high-pressure gear. Stability and selectivity often tip the scales for project managers when selecting which intermediate to buy. The real-world result shows up in smaller waste streams and smoother scale-up, something process chemists never underestimate.

    Usage that Speaks to Innovation

    Most folks look at dibrominated compounds and think “next step”—they’re not usually end products themselves. The 5,8-Dibromobenzopyrazine core enters Suzuki-Miyaura and other palladium-catalyzed couplings with little fuss. Medicinal chemists value this because they can swap in aryl groups or other entities, unlocking new pharmacophores for testing. In my own early career, such intermediates found their way into custom electronics research, producing heterocyclic cores for OLED or organic semiconductor prototypes. That may sound niche, but these rapid transformations set the stage for advances in both therapeutic and electronic materials.

    A strong point here comes from broad compatibility. Nucleophilic aromatic substitution, cross-coupling, or even careful reduction let users make nearly anything they can imagine within the benzopyrazine framework. That flexibility enables creative projects, where a hit compound in a screening library might start from one smartly designed dibrominated intermediate. My firsthand encounters with these transformations often ended in a mix of relief and pride—the right starting core makes a chain of scattershot reactions line up almost elegantly.

    Health, Safety, and Handling Perspectives

    Every synthetic chemist picks up a healthy wariness with brominated aromatics. Organic bromides tend to raise eyebrows—many are potent, sometimes toxic or environmentally persistent. In my years of handling such materials, standard personal protective equipment (gloves, goggles, fume hoods) always served well, and that applies to 5,8-Dibromobenzopyrazine too. No one overlooks the heavy atom content, and everyone pays attention to disposal protocols that respect both workplace safety and environmental stewardship. Not every compound gets treated with the same respect as mercury or highly volatile organics, but complacency is a stranger in responsible labs.

    There’s also the matter of scale. Small-quantity research settings rarely see acute exposure issues, but in pilot plants or manufacturing, fume capture, proper containment, and waste stream monitoring grow more important. Regulatory guidelines continue to tighten; both the brominated core and its breakdown products can demand special handling under national or regional rules. Any company considering production escalation would benefit from early consultation with both environmental and occupational health advisors. Conversations I’ve witnessed between process engineers and ecotoxicologists show that “do it right the first time” isn’t just a slogan; it’s a long-term business gatekeeper.

    Supporting Research and Its Broader Context

    Diving into chemical literature, the dibromobenzopyrazine motif crops up in both basic research papers and patent filings. Its ability to serve as a cross-linking point, a precursor for more exotic heterocycles, and a handle for late-stage diversification all support its growing reputation. Scientists track its journey in chromatography and spectroscopy with ease, giving reliable purity data for both regulatory filings and in-house documentation.

    Drug developers find room for it in lead compound synthesis, tweaking its substituents for activity or selectivity. Material scientists push it into low-bandgap polymers or thin-film devices. Even students use it as a model substrate in teaching advanced synthetic methods. Personal experience shapes my view: consulting as an external reviewer, I saw its frequent mention in grant proposals aiming for everything from anti-cancer libraries to brighter organic LEDs.

    Market Realities and Planning Ahead

    Practical concerns shape much of the discussion around specialty chemicals. 5,8-Dibromobenzopyrazine generally comes in laboratory-scale bottles; kilo quantities forecast strong demand or planned scale-up. Pricing trends reflect more than just raw material costs—custom synthesis, purification, and even packaging matter. Comparing quotes from various suppliers, I noticed those who offer traceable quality control and responsible manufacturing pull ahead, even with stiffer price points.

    Shifting regulations regarding halogenated organics could affect long-term adoption. European REACH and similar frameworks in Asia or North America extend reporting or restriction to new candidate lists every year. Users in academia or industry face a moving target, where transparency and readiness to pivot become strong assets. I’ve witnessed procurement teams dig deep into supplier documentation before approving a chemical for new programs. More and more, “green chemistry” checklists inform such decisions, nudging institutions toward less hazardous--or more easily degradable--alternatives when possible. For now, the application-driven need dominates, and 5,8-Dibromobenzopyrazine keeps its standing thanks to proven efficiency in multiple crucial workflows.

    Improvements and Future Directions

    There’s no perfect compound. Interest has grown in designing similar heterocyclic frameworks with fewer toxicological questions or simplified disposal routes. From what I’ve seen, some research teams develop new protocols that use alternative halogens or replace heavy atoms with more benign substituents, trying to preserve reactivity without environmental baggage. Flow chemistry has also made a mark, giving tighter control over hazardous intermediates and streamlining direct modifications. My interactions with startup founders and academic partners show most welcome incremental gains if they cut down on waste, energy use, or purification steps, even if the base structure stays solid.

    The future may hold benzopyrazine variants with selective green functional groups, making downstream processes easier or safer. Streamlined one-pot syntheses and recyclable catalysts also merit attention, minimizing both risk and operational cost. Training remains a linchpin; replacing outmoded bencheside habits with up-to-date workflows keeps reputation and compliance intact.

    What Sets the Benchmark: Trust in Manufacturing and Supply

    Trust builds slowly in the chemical supply chain. Labs want more than a clean label and a competitive price—they look for data, provenance, and openness from suppliers. In my years of working through both academic and industrial research demands, those suppliers willing to share characterization data, regression analyses, and periodic impurity profiles quickly become the go-to partners. For a product like 5,8-Dibromobenzopyrazine, buyers examine not only batch specifications but also response time on technical questions. When production hiccups or shipping delays hit, the relationships built on transparent communication carry programs over the finish line.

    With globalization, supply consistency can face both logistical and geopolitical unpredictability. Diversified sourcing, strong record-keeping, and advance forecasting work as safety nets. Digital tracking and batch QR codes have shown their worth in recent years, tying every jar to a paper trail that meets both internal policies and external audits.

    Comparing with Benchmarks and Substitutes

    Some may wonder whether similar halogenated intermediates could replace 5,8-Dibromobenzopyrazine outright. In a pinch, other dibromo-benzene heterocycles or chlorinated/iodinated variants serve as analogs—each with quirks. Cost, reactivity, and regulatory status tip the scales. For example, iodinated versions enable specific types of couplings but often suffer from instability or higher procurement cost. Chlorinated derivatives might be cheaper but usually lack the reactivity required for more advanced syntheses, dragging out timelines or introducing complications.

    In head-to-head testing, the dibromobenzopyrazine motif shows up with a blend of moderate cost and high applicability to Pd-catalyzed reactions. That mix attracts not just specialist chemists but also product managers trying to balance budget against workflow reliability. The versatile coupling capacity, steady shelf-life, and robust performance in routine synthetic scenarios keep this molecule at the front of the pack for many teams.

    Building Value through Shared Community Knowledge

    The chemistry community thrives on data sharing—both the wins and the hard-fought lessons learned. Open-access publications, online reagent reviews, and global conferences come together to expand practical knowledge. In my time participating in such forums, I’ve seen the ripple effects when someone shares a new method to activate a dibrominated core or profiles its reactions under greener conditions. Peer networks also flag new regulatory updates or supply vulnerabilities early, giving labs time to adjust course.

    No one compound works as an island. Closely related structures often build cumulative experience, such that a new graduate student or company newcomer quickly accesses a trove of peer-tested protocols. That cumulative know-how not only supports research objectives; it builds careers. 5,8-Dibromobenzopyrazine, due to its blend of stability and reactivity, features prominently in these ongoing conversations, shaping both the next generation of syntheses and product roll-outs.

    Addressing Limitations and Seeking Better Alternatives

    Every choice in synthetic chemistry brings trade-offs. Cost, environmental footprint, purity, and handling complexity balance against the ease of forming target products. While 5,8-Dibromobenzopyrazine currently strikes a sweet balance, rising regulatory scrutiny over halogenated organics keeps researchers on their toes. Those in process development keep scouting for functional group replacements or greener analogs, knowing regulations might change or market forces shift.

    Some emerging research investigates using milder ionic liquid solvents, biocatalytic transformation, or direct C–H activation as alternatives to classic halogen–metal exchange chemistry. These are not yet fully mainstream but point to a future where both performance and sustainability coexist. I’ve seen labs embrace continuous training, bringing in outside experts for short courses on new reaction technologies or regulatory trends. Such openness to learning often distinguishes the most resilient organizations in any scientific field.

    Closing Thoughts: A Model for Adaptation and Progress

    Looking back over years working in chemical synthesis, it’s rare to find a building block that so effectively merges reliability with adaptability as 5,8-Dibromobenzopyrazine. The ongoing buzz in both academic and industrial spaces testifies to its practical impact. It meets the high bar for purity and performance demanded by modern research, without bringing excessive risk or complexity to the table. And, it continues to evolve—every new synthetic method or downstream use case feeds into an expanding ecosystem of knowledge.

    Compounds like this remind us that progress in chemistry rests on both molecular innovation and community collaboration. Today’s promising intermediate becomes tomorrow’s stepping stone for smarter, more sustainable discoveries. By focusing on both quality and forward-thinking stewardship, chemists keep finding new ways to unlock value for science and society alike.