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7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97

    • Product Name 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97
    • Alias 7-Bromo-5-formyl-2,3-dihydrothieno[3,4-b][1,4]dioxine
    • Einecs 834-343-7
    • 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
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    Specifications

    HS Code

    579014

    Product Name 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde
    Purity 97%
    Cas Number 2228896-42-6
    Molecular Formula C7H5BrO3S
    Molecular Weight 249.08 g/mol
    Appearance Solid
    Color Off-white to light brown
    Storage Temperature 2-8°C
    Solubility Soluble in DMSO, Methanol
    Synonyms 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carbaldehyde
    Smiles C1OC2=C(O1)C=C(C=O)C(Br)S2
    Inchi InChI=1S/C7H5BrO3S/c8-7-6(3-9)1-10-4-11-5(7)12-2-6/h1-3H,4H2
    Catalog Number AL-10838

    As an accredited 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 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-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97

    Applications of 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 in Industrial Manufacturing

    As a specialist in advanced organic synthesis, we provide high-purity 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 primarily for critical intermediate applications in the electronics, pharmaceuticals, and specialty polymers sectors. This material supports process innovation in high-value synthesis and fabrication under increasingly demanding quality, regulatory, and technical requirements.

    1. Active Intermediate for Organic Semiconductor Synthesis

    Research and manufacturing facilities in the organic electronics sector utilize this compound as a building block for the production of next-generation organic semiconductors. Its precise structure enables targeted bromination and cross-coupling in the formation of conjugated oligomers and polymers for thin-film transistors (TFTs) and organic photovoltaics (OPVs). Integration into the semiconductor backbone allows tuning of electronic properties and stability, meeting stringent quality control metrics in device manufacturing.

    Industry compliance standards

    • IEC 62899-201 standards for printed electronics
    • RoHS Directive (2011/65/EU) for hazardous substance limits
    • ISO 9001 Quality Management System for electronics materials
    • REACH (EC 1907/2006) registration for specialty chemicals

    Typical usage ratio

    • 0.2–2.5 mol% relative to total monomer feed, adjusted for desired semiconductor bandgap and solubility characteristics in device formulations

    Downstream process integration

    • Introduced in Suzuki or Stille cross-coupling steps during small molecule or polymer backbone assembly prior to device-grade purification

    Final product types

    • Organic thin-film transistors (TFT) arrays
    • Printed OPV absorber layers
    • Flexible OLED backplanes
    • Low bandgap fluorescent sensor matrices

    2. Pharmaceutical Intermediate for Thieno[3,4-b][1,4]Dioxine-Based Drug Molecules

    Pharmaceutical manufacturers employ this raw material in targeted synthesis routes for novel drug candidates incorporating the thieno[3,4-b][1,4]dioxine scaffold. The aldehyde and bromo functionalities facilitate selective derivatization steps in medicinal chemistry workflows, particularly in the synthesis of kinase inhibitors and heterocyclic library expansions. The material’s controlled purity profile supports meeting GMP standards during scale-up for late-stage clinical supply.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • Ph. Eur./USP/JP monograph guidance for starting materials
    • FDA 21 CFR Part 211 for drug substance manufacture
    • EMA guideline on the chemistry of active substances (EMA/CHMP/QWP/130/96 Rev1)

    Typical usage ratio

    • 1.0–1.2 equivalents per synthetic step, determined by stoichiometry during intermediate coupling and functional group transformation processes in route optimization

    Downstream process integration

    • Added during early-stage intermediate synthesis, typically in Suzuki coupling, Wittig, or reductive amination, followed by in-process analytical confirmation and purification

    Final product types

    • API intermediates for investigational kinase inhibitors
    • Advanced small-molecule heterocycle lead candidates
    • Reference compounds for structure-activity relationship (SAR) studies
    • Building blocks for combinatorial medicinal chemistry campaigns

    3. Precursor for High-Performance Electroactive Polymers

    Manufacturers specializing in electroactive materials for biosensing, antistatic coatings, and electronic component encapsulation utilize this compound as a monomer precursor for specialty polymers based on thienodioxine frameworks. The controlled bromination and aldehyde substitution facilitate crosslinking and copolymerization to deliver tunable conductivity and dielectric properties as required by the end-use specification.

    Industry compliance standards

    • IEC 60093 standards for volume resistivity of insulating materials
    • ISO 14001 for environmental management during polymer synthesis
    • RoHS/REACH compliance for downstream polymer components
    • ASTM D257 for electrical conductivity in polymer films

    Typical usage ratio

    • 3–10 wt% as feedstock for specific block copolymer or crosslinked network composites, depending on electrical property targets and processing technique (solution or melt polymerization)

    Downstream process integration

    • Charged before copolymerization via oxidative coupling or Suzuki reactions, accompanied by in-line spectral verification and viscosity control for film casting or spinning operations

    Final product types

    • Antistatic and conductive polymer layers for circuit assembly
    • Electroactive coatings for sensor substrates
    • Flexible EMI shielding films
    • Biosensor interface materials

    4. Intermediate for Advanced Dye and Pigment Synthesis

    Producers of specialty dyes and molecular pigments use this intermediate in constructing conjugated systems for high-stability, high-absorbance colorants. The bifunctional nature permits targeted aldol and Sonogashira coupling, enabling precise tuning of chromophore structure for lightfastness and electronic spectra required in high-end printing and photovoltaic function dyes.

    Industry compliance standards

    • EN 71-3 standard for use in pigments for toys
    • Oeko-Tex Standard 100 for permissible chemicals in textile dyes
    • ISO 8124-3 for pigment safety in consumer products
    • REACH SVHC (Substances of Very High Concern) compliance for pigment intermediates

    Typical usage ratio

    • 0.8–2.0 equivalents as core precursor in multi-step pigment manufacturing, varying per chromophore series and desired absorbance profile

    Downstream process integration

    • Input during the core coupling step for chromophore backbone synthesis, followed by purification and blending with stabilizers or dispersing agents in pigment finishing lines

    Final product types

    • High-stability molecular dyes for inkjet and photo printing
    • Functional colorants for photovoltaic devices
    • Specialty pigments for textile and technical coatings
    • Photoresist colorants for microelectronics
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    Certification & Compliance
    More Introduction

    Introducing 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97: Precision in Synthetic Chemistry

    Bringing Clarity to Chemical Advancement

    Laboratories and research teams often seek out precise, reliable building blocks for scientific exploration. Among these, 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 emerges as a remarkably purposeful compound. Tinkerers and professionals in organic synthesis benefit from compounds like this because subtle differences in structure and purity can reshape outcomes in the lab, from early-stage medicinal chemistry to the development of advanced electronic materials.

    Navigating Its Chemistry and Significance

    This molecule’s construction—a fused dioxine-thiophene ring system bearing a bromo group and a carboxaldehyde offshoot—gives it a unique character. When I first encountered thieno-dioxine derivatives in an academic setting, their versatile reactivity opened up access to unexpected compounds, especially in the context of heterocyclic research. The presence of a bromine atom can act as a powerful handle for further transformations, especially in palladium-catalyzed Suzuki or Heck coupling reactions. This means a chemist can take this core and rapidly build out larger, more complex molecules, ranging from pharmaceutical scaffolds to conductive polymers.

    By anchoring an aldehyde at the 5-position, the compound offers easy entry into reductive aminations or additions that yield chiral centers—sometimes unlocking new biological activities or tailor-made building blocks. The 97 % assay speaks to a high level of purity, streamlining purification steps and giving researchers confidence that their results are due to the chemistry at hand, not unknown contaminants. I’ve seen colleagues wrestle with reactions that stall out or give puzzling side products; later, a quick check of the starting material’s purity through NMR or GC reveals the culprit. Inconsistent outcomes undermine trust—not in the chemistry, but in the materials. That’s why having a reliable, thoroughly characterized compound brings real-world value.

    Differentiation From Close Relatives

    It’s tempting to lump many heterocyclic aldehydes together, especially those built on thiophene or dioxine frameworks. But subtle guiding hands—bromine in one spot or oxygen in another—make or break a research outcome. Take the simple step of replacing bromine with another halogen, say chlorine, and the reactivity with organometallics shifts. Swap out the carboxaldehyde for a ketone, and regioselectivity in downstream chemistry starts dancing to a new tune. Every lab worker knows thrifty substitutions only take you so far. For those of us who have spent hours poring over reaction schemes, tweaking functional groups, or running repeated TLCs, this level of detail is more than scientific minutiae—it’s the difference between frustration and discovery.

    This compound can also set itself apart from less pure versions. Trace impurities—sometimes arising from incomplete reactions or lingering solvents—can steer selectivity off course, poison catalysts, or even set off safety alarms in scale-up procedures. In one memorable incident, a reaction that should have produced a clean, singular product instead resulted in a smorgasbord of tars. Several hours and many yellow-stained gloves later, the culprit: a trace impurity in the starting aldehyde. Commitment to purity pays dividends not just for the bench chemist, but for projects operating under deadlines and tight budgets.

    Driving Research Forward

    Many synthetic pathways rely on chemoselectivity, regioselectivity, and reliable coupling partners. In drug discovery, researchers often push small, functionalized rings into chemical space, seeking new bioactives. The fused thieno-dioxine ring in this compound frequently appears in medicinal chemistry literature, especially in contexts where rigidity, electron richness, and the ability to accept or donate electrons play a role in binding to biological targets. Medicinal chemists sometimes describe their work as navigating a vast “chemical landscape.” Quality molecular bricks like this carve paths through otherwise impassible terrain, opening up possibilities for novel anti-inflammatory candidates, antibiotics, or central nervous system-active small molecules.

    Material sciences benefit, too. The compound’s conjugated system, augmented by an electron-withdrawing aldehyde and electron-donating dioxine oxygens, sets up behavior that becomes particularly valuable in organic electronics. Polymers and small molecules built on such frameworks show promise as active layers in organic field-effect transistors, solar cells, or sensors. In my own graduate research on organic semiconductors, starting with predictable, clean precursors meant the difference between publishing a spectrum worthy of a major journal and sitting through yet another round of “please repeat the measurement, the baseline looks noisy” critiques from reviewers.

    Overcoming Challenges in Sourcing and Application

    A big challenge in research often stems from uneven sourcing—multiple vendors listing compounds, each with slightly different purity, documentation, or synthetic backstories. Some catalogues promise quick delivery but send material that takes days of column chromatography to clean. While the molecular structure tells part of the story, trace metals, water, or leftover reagents can fly under the radar. Labs working with sensitive reactions—especially those involving palladium, copper, or nickel catalysts—cannot afford to ignore these contaminants. Choosing a compound with a clearly stated and validated purity rating reduces time spent on troubleshooting mysterious failures and lets the focus return to meaningful experimental design.

    Documentation also matters. Characterization data—full NMR, mass spectrum, even HPLC trace—bring peace of mind, both for regulatory reasons and for reproducibility. Any scientist who’s had to repeat a synthesis for a peer-reviewed journal knows the value of rock-solid, reproducible material. In the modern era, transparency about starting materials contributes directly to scientific trust. If a project ever leads to patent claims or scale-up for industrial production, clear documentation provides a safeguard against uncertainty down the road.

    Supporting Sustainable and Responsible Laboratory Practices

    Environmental health has become an ever-louder concern in synthetic laboratories. Researchers aim to limit waste, avoid hazardous reagents, and minimize exposure to volatile or toxic substances. Working with well-purified compounds like this reduces reliance on excessive solvent washes, labor-intensive crystallizations, and repeated distillations. High-quality starting materials create less waste and support cleaner, safer working conditions.

    Reducing the need for additional purifications supports the “green chemistry” ethos. I have seen labs save gallons of chlorinated waste simply by upgrading their input materials—decisions that make a measurable difference when tallied over a year across a busy research group. Moreover, careful sourcing strengthens institutional commitments to responsible procurement. Choosing compounds with detailed batch records and fewer environmental red flags aligns research with regulatory and ethical guidelines, especially as funding agencies and universities ramp up demands for sustainability and transparency.

    Encouraging Methodological Improvement

    Every chemist learns early on that methodology relies not just on clever ideas, but on reliable bricks. The difference between “promising method” and “widely adopted protocol” comes down, time and again, to reproducibility. Adding a 7-bromo moiety to a thieno-dioxine ring is no minor footnote—it opens or closes doors for regiospecific transformations, expands cross-coupling compatibility, and even sets up productive hydrogen bond networks in molecular design. By using well-defined starting points, experimentalists avoid endless hours trying to work up complex mixtures, leading to more robust and communicable results.

    The research community stands to gain when single-product, high-purity compounds become more available. Graduate students spend less time troubleshooting, principal investigators run tighter budgets, and collaborations move forward with fewer headaches. Reliable building blocks foster a culture of sharing, reproducibility, and innovation—all essential for the next breakthrough, whether in medicine, materials, or fundamental organic chemistry.

    Empowering Innovation Through Purity and Transparency

    Many of today’s pressing scientific questions—new antibiotic development, sustainable battery materials, smarter sensors—rest on the quality of the starting compounds at hand. A structure as nuanced as 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 sits at the convergence of precision organic synthesis and real-world impact. Its purity enables researchers to design, build, and iterate with confidence. Its unique framework stands ready to anchor new molecular architectures.

    In my own work and that of my colleagues, time saved by access to reliable precursors pays off not just in convenience, but in grant outcomes, publication rates, and career advancement. Mistakes from poorly characterized materials live on in the literature, creating noise that slows the march toward new knowledge. When a well-crafted compound drops into a reaction, everything downstream moves more smoothly—test results align, unexpected colors or smells become rare, and focus shifts to the hypothesis being tested. The compound doesn’t run the experiment, but it enables the experimenter to move quickly from concept to result.

    Bridging the Gap: From Academic Curiosity to Real-World Solutions

    Real progress comes when foundational science translates into market-ready products, therapies, or materials. Compounds like this one make that arc possible, bridging lab-scale curiosity with scalable, implementable solutions. As technology transfers from academic benches to pilot plants and on to manufacturing floors, the importance of reproducible, traceable, and high-purity materials only increases. Disruptions or delays at early stages often ripple into full-scale setbacks if the building blocks don’t perform predictably.

    Students cutting their teeth on complex syntheses, postdocs managing ambitious cross-disciplinary collaborations, and small startups racing the clock all crave reliability. Early access to well-documented, high-purity compounds boosts morale and speeds up troubleshooting. It’s often in the “nuts and bolts” of chemistry—steady access to defined materials—that breakthroughs happen. In conversations with industry partners, success stories frequently start not with the end-use device but with a simple affirmation: reliable starting materials paved the way for scalable innovation. By focusing on the basic elements, researchers become better equipped to drive discovery, communicate findings, and move transformative ideas toward commercial reality.

    Charting a Path Forward: Solutions Through Attention to Materials

    Sometimes the solution to a recurrent research problem lies in looking upstream to the basic ingredients. Building reproducibility into the project from day one reduces frustration and wasted effort. For other challenges—whether bottlenecks in scale-up or new regulatory hurdles—switching to a compound with a higher and more reliable purity profile pulls the project forward.

    Collaboration between suppliers, researchers, and institutions improves outcomes for everyone involved. By demanding transparency—access to batch results, synthetic routes, residual solvents, and stability data—customers and scientists encourage a higher standard for everyone in the supply chain. Over time, this makes the market more competitive and the materials more dependable.

    Communities of practice can share trusted suppliers, compare notes on synthetic pathways, and troubleshoot complications together. Universities use shared instrumentation facilities and peer networks to cross-check identities and purities. These collective efforts drive the landscape toward greater accountability. Over the years, I’ve seen this approach push vendors to provide better, richer data sets, fostering a virtuous cycle of rising standards.

    Supporting a Robust Future in Research and Discovery

    The story of 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carboxaldehyde 97 underscores a larger message: progress in modern chemistry relies, in part, on unseen details. Named molecules and their tidy formulas only tell part of that story. What matters just as much is reproducibility, transparency, and an unyielding commitment to clarity. The next generation of researchers will build on these efforts, carrying the torch forward. They will benefit from starting materials that give them confidence—allowing their work to tackle real-world challenges with science that stands up to scrutiny, repetition, and real progress.