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4,7-Dibromo-2,1,3-Benzothiadiazole

    • Product Name 4,7-Dibromo-2,1,3-Benzothiadiazole
    • Alias 4,7-Dibromobenzothiadiazole
    • Einecs 223-980-0
    • 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

    948631

    Chemicalname 4,7-Dibromo-2,1,3-benzothiadiazole
    Casnumber 15155-41-6
    Molecularformula C6Br2N2S
    Molecularweight 295.95 g/mol
    Appearance Light yellow to orange powder
    Meltingpoint 260-263 °C
    Density 2.35 g/cm³
    Solubility Slightly soluble in common organic solvents
    Purity Typically ≥98%
    Smiles Brc1ccc2nsnc2c1Br
    Inchi InChI=1S/C6Br2N2S/c7-3-1-2-4-5(8)6(3)11-10-9-4
    Storagetemperature Store at room temperature
    Ecnumber 604-128-4

    As an accredited 4,7-Dibromo-2,1,3-Benzothiadiazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 4,7-Dibromo-2,1,3-Benzothiadiazole

    Applications of 4,7-Dibromo-2,1,3-Benzothiadiazole in Industrial Manufacturing

    4,7-Dibromo-2,1,3-benzothiadiazole finds vital roles in high-performance industrial fields, serving as a material building block for advanced molecular engineering. The chemical’s bromo-functionalized benzothiadiazole core enables unique electron-withdrawing properties, making it essential for a spectrum of downstream applications from optoelectronic components to specialty polymers. Below, we detail its use-cases aligned with regulatory, formulation, process, and end-product expectations formulated on manufacturer insights.

    1. Organic Photovoltaic (OPV) Polymer Synthesis

    In the solar energy sector, 4,7-dibromo-2,1,3-benzothiadiazole provides a donor-acceptor backbone in the synthesis of conjugated polymers for organic photovoltaic modules. Its electron-deficient nature tunes energy levels and enhances charge mobility within active layers of thin-film solar cells, supporting efficiency improvements and material stability under sunlight. Research and commercial formulations integrate this building block via Suzuki or Stille coupling to yield backbones like PCDTBT or PBDB-T families.

    Industry compliance standards

    • IEC 61215 standards for Photovoltaic Modules
    • RoHS (Restriction of Hazardous Substances) Directive 2011/65/EU
    • REACH Regulation (EC) No 1907/2006
    • OEKO-TEX® Standard 100 (for non-toxic materials in assembly components)

    Typical usage ratio

    • 5–25% by mol in the active polymer precursor feed, adjusted based on targeted band gap, solubility, and polymer molar mass specifications

    Downstream process integration

    • Inserted at the initial monomer stage during Suzuki or Stille cross-coupling reactions in pilot or commercial polymerization reactors; post-polymerization purification and characterization follow prior to device casting

    Final product types

    • Flexible organic solar panels
    • Copper-indium-gallium-selenide (CIGS) hybrid solar cells
    • Semi-transparent building-integrated photovoltaic (BIPV) films
    • OPV research reference devices

    2. Organic Light Emitting Diode (OLED) Material Production

    Display and lighting manufacturers employ dibromobenzothiadiazole derivatives in the synthesis of blue- or green-emitting polymer hosts and acceptor molecules within OLED stacks. Its strong electron affinity and planar structure enhance charge injection, broaden emission spectra, and improve thermal stability, supporting high-resolution screen and lighting panel manufacturing that meet stringent lifespan and color purity requirements.

    Industry compliance standards

    • IEC 62341 (OLED Displays and Lighting Devices)
    • JEITA CP-0099 standard (Japan OLED device requirements)
    • EU RoHS Directive compliance
    • REACH Reg. (EC) 1907/2006 for precursor substances

    Typical usage ratio

    • 3–15% by mass in the emitter or electron transport layer synthesis, tailored to the desired device EQE (external quantum efficiency) and emission wavelength requirements

    Downstream process integration

    • Introduced in the early-stage material design and synthesis, using palladium-catalyzed coupling; followed by purification and subsequent blending with matrix polymers or host-guest systems before thin-film deposition

    Final product types

    • Smartphone and television OLED panels
    • Wearable flexible displays
    • OLED-based automotive instrument clusters
    • Architectural OLED lighting strips

    3. Organic Field-Effect Transistor (OFET) Semiconductor Manufacturing

    4,7-dibromo-2,1,3-benzothiadiazole remains integral in producing small-molecule and polymer-based semiconducting layers, crucial to organic field-effect transistor fabrication. Its incorporation as an electron-deficient core monomer modulates critical FET channel mobility, off-current suppression, and environmental reliability. Performance-driven OFET production lines rely on this base for advanced low-voltage and flexible electronics.

    Industry compliance standards

    • IEC 62899-201:2016 (Printed Electronics – Materials)
    • ISO 9001:2015 for QA in semiconductor materials manufacturing
    • RoHS Directive (if assembled in end-use devices in consumer markets)

    Typical usage ratio

    • 2–18% by mass within copolymer or small molecule backbone, varying by device design for target electron mobility and ambient operation stability

    Downstream process integration

    • Monomer introduced in metal-catalyzed cross-coupling for semiconducting polymer or oligomer synthesis; solution processed and spin-coated to form thin films in OFET fabrication steps

    Final product types

    • Flexible sensor arrays
    • Smart identification (RFID) tags
    • Printed organic integrated circuits (ICs)
    • Low-power logic components for wearables

    4. Photodetector and Sensor Material Development

    Advanced photodetector manufacturers utilize 4,7-dibromo-2,1,3-benzothiadiazole for its role in donor-acceptor-type conjugated polymers that facilitate broad-spectrum photoresponse. The functionalization with two bromo groups enables precise integration into block copolymers, enhancing photosensitivity and response rate, underpinning next-generation photodetector and light sensor arrays for medical, environmental, and surveillance technology.

    Industry compliance standards

    • IEC 60747-5-5 (Discrete semiconductor devices and photosensors)
    • ISO 13485:2016 (Medical device component quality for biosensors)
    • RoHS compliance for device integration
    • REACH Regulation for chemical safety

    Typical usage ratio

    • 3–12% by mass for block copolymer blend formation, according to sensitivity and wavelength targeting in respective device architectures

    Downstream process integration

    • Reacted in controlled polymerization with tailored donor monomers, yielding films subsequently used as active layers within photodiode, phototransistor, or photoconductor assembly

    Final product types

    • Visible and NIR light photodetectors
    • Medical imaging sensor arrays
    • Environmental monitoring phototransistors
    • Industrial optical position sensors

    5. Specialty Pigment Intermediate for Functional Coatings

    In the specialty pigment segment, downstream coating formulators select this dibromo-thiadiazole as an intermediate for high-performance organic pigments featuring controlled light absorption and colorfastness for high-durability finishes. It allows precise molecular modifications that impart unique photostability, chromaticity, and resistance to weathering in architectural and automotive applications.

    Industry compliance standards

    • EN 71-3 Safety standards for pigment migration (toys and coatings)
    • ISO 4618:2014 Paints and varnishes – Terms and definitions
    • RoHS for pigments in electronics-related coatings

    Typical usage ratio

    • 1–6% as an intermediate within pigment precursor synthesis, adapted per desired color depth and fastness

    Downstream process integration

    • Processed as a core functional unit during organic pigment molecule synthesis, introduced in the early coupling phase, followed by alkylation or arylation and laked or precipitated as dispersible pigment particles

    Final product types

    • Exterior automotive coatings
    • Architectural protective paints
    • Weather-resistant industrial finishes
    • Functional coloration for plastics and electronic device housings
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    More Introduction

    Introducing 4,7-Dibromo-2,1,3-Benzothiadiazole: A Cornerstone for Modern Material Science

    A Fresh Perspective on Synthetic Building Blocks

    I remember thumbing through old chemical catalogs in university, searching for the perfect molecule that could unlock the next chapter in organic electronics. Most solutions felt like clunky parts that rarely fit together. 4,7-Dibromo-2,1,3-benzothiadiazole changed the story for many in material science labs like mine. With its distinct structure—bearing two bromine atoms on a benzothiadiazole ring—it offered a rare combination of reliability and versatility. This compound doesn’t get lost in the shuffle of countless intermediates; it stands out thanks to its repeat performance in precision chemical syntheses.

    Model Features That Matter in the Lab

    In a world full of organic compounds, small changes make big ripples. The 4,7-dibromo substitution pattern plays a crucial role, allowing for controlled couplings in Suzuki or Stille reactions. I’ve used this feature to build new donor-acceptor conjugated polymers, the kind used to create thin-film transistors. Two bromo groups don’t just sit there—they beckon further reactive possibilities. Compared with plain benzothiadiazole, these brominated substitutions open more doors, offering more reaction handles without complicating purification or introducing instability.

    Not every customer values the same traits. Some want a monobromo version because they hope for selectivity over speed. Different reactions need different triggers. Here, the dibromo design shifts the baseline. It turns a neutral core into a versatile scaffold for rapid iterative coupling, which always shaved days off my workflows.

    Results That Speak for Themselves in Polymer Science

    Ask anyone in organic photovoltaics or optoelectronic materials and they’ll tell you: molecular backbone determines performance. When I built semiconducting polymers, I noticed that 4,7-dibromo-2,1,3-benzothiadiazole brought two distinct advantages over less functionalized analogs. Besides enhancing conjugation length, it let me tune electron-withdrawing effects. The resulting materials achieved greater charge mobility, which translated into better device efficiency.

    Compare this with older building blocks like thiophene or pyridine derivatives, which often lack multiple points of attachment or suffer from overcrowded ring systems. Benzothiadiazole’s core offers planarity and rigidity, driving down energetic disorder. The dibrominated variety just multiplies these properties—ensuring syntheticists encounter less trial-and-error, less waste, and more reliable outcomes. Rigorous documentation shows that higher device performances in field-effect transistors and solar cells track reliably with use of dibromo benzothiadiazole units. Clearly, the right monomer speeds the path from benchtop to practical prototyping.

    Supporting the Development of Next-Gen Devices

    While commercial science loves buzzwords about innovation, real progress depends on stable access to building blocks with predictable behavior. I’ve learned to mistrust volatile supply chains. 4,7-Dibromo-2,1,3-benzothiadiazole hasn’t let me down here. It comes in fine crystalline form and its melting point allows for easy storage—a feature that means a lot in unpredictable climates.

    Friends working in OLEDs and sensor fabrication stress a related point: finely tuned intermediates like this enable direct translation of synthetic results to device fabrication. It’s rare to find a compound that cuts through not just one workflow step, but often a whole series. Typical alternatives need extra purification or protection/deprotection steps before they function in demanding environments. Instead, this benzothiadiazole derivative plugs straight into downstream coupling reactions, supporting rapid library expansion.

    Performance and Precision—Not Just a Buzzword

    Synthetic chemists spend long nights running reactions that don’t pan out. Using the right monomer lowers stress and raises yields. 4,7-Dibromo-2,1,3-benzothiadiazole brings a reassuring robustness to cross-coupling, holding up under higher temperatures and surviving the presence of most common catalysts without running into solubility issues. The molecule’s electron-deficient backbone confers chemical stability. I tested it head-to-head with monobrominated or unsubstituted analogs and found it consistently delivered higher coupling efficiencies and cleaner product profiles on work-up.

    Industry and academia demand reliability, and so do custom applications. Routine presence of this compound in leading-edge publications on organic semiconductors and polymers underscores peer trust in its capability. Whether the end goal is streamlining reagent costs, improving device longevity, or scaling production, this intermediate features on many protocols for good reason. Few compounds straddle so many research priorities at once.

    Key Differences from Competing Products

    Some specialty chemicals get attention for purity, others for ease of use, and still others for cost competitiveness. In my own practice, I learned that dibromo benzothiadiazole strikes a rare balance: it comes in high-purity grades required for electronics, but its large-scale cost structure remains accessible—even for mid-sized R&D programs. Competing products, such as monobromo analogs or other halogenated benzothiadiazoles, don’t always check all three boxes.

    In terms of chemical reactivity, mono-substitution allows fewer points of entry for complexity, which slows down rapid chain extensions or diversifications. Extra functionalized forms (for example, difluorinated or dichlorinated derivatives) sometimes bring solubility or handling issues, which have interrupted more than one project in my personal record. The dibromo configuration sits at a practical convergence—broad reactivity, predictable product distributions, and compatible handling.

    Building a Bridge from Lab Innovation to Industry

    Raw discoveries mean little if they don’t translate into scalable processes and robust products. I’ve seen this compound deployed in pilot lines and watched companies confidently scale up from grams to kilograms as research became manufacturing. Commercial availability in both small and bulk quantities has enabled many startups and academic groups to compete with larger institutions. That democratization can’t happen if every key reagent stays an obscure specialty product.

    Some have adapted the classic Suzuki coupling to recycle solvents, cut waste, and improve cost profiles thanks to the predictable performance of 4,7-Dibromo-2,1,3-benzothiadiazole. Environmental concerns around halogenated intermediates also see redress here: cleaner handling, fewer byproducts, and established protocols for safe disposal or recycling. Responsible sourcing doesn’t make headlines, but as a chemist running multi-step syntheses, I appreciate batch traceability and documentation—a feature companies now offer with every shipment.

    Driving Forward with Transparency, Traceability, and Trust

    Through years spent on product development teams, I’ve watched expectations shift. Customers want more than a chemical—they want a transparent manufacturing process, consistent batch results, and a clear origin story. Enhanced methods for verification, such as NMR spectra, elemental analysis, and chromatographic purity, have put this compound on the short list for teams designing new organic light-emitting diodes (OLEDs) or photovoltaic devices.

    Supply partners now publish regular CoAs (Certificates of Analysis) and provide robust documentation to help satisfy both regulatory and practical research needs. This focus hasn’t just protected users; it has enabled deeper collaboration between teams in different countries, making research more reproducible. Whenever I discuss procurement with colleagues, these trust factors come up just as often as shipping times or purity grades.

    New Applications Keep Emerging

    As materials science evolves, so do the expectations around what a “standard” reagent can achieve. Recent years have seen 4,7-Dibromo-2,1,3-benzothiadiazole used in everything from next-gen sensors to advances in flexible electronics. For instance, blended polymers containing this building block now anchor research into wearable and stretchable electronics. The core structure enables charge transfer and helps tune emission wavelengths, expanding application potential well beyond the original niche.

    I’ve seen graduate students fuse this intermediate into molecular wires, dye-sensitized solar cells, and even chemical sensors targeting medical diagnostics. Its electron-deficient nature and balanced planarity allow for efficient stacking and improved charge transport. Contrast that with older generations of building blocks, which often missed one or more of these properties. Improved device lifetimes, better mechanical stability, and enhanced light-harvesting all follow from these molecular advantages.

    Dangers of Complacency in Sourcing Intermediates

    Some labs chase the cheapest source without thinking ahead. In my experience, slight differences in quality between suppliers can derail an entire month of experiments. Inconsistent melting points or solvent residues spoil sensitive coupling reactions, drain budgets, and frustrate researchers. Opting for well-documented providers of 4,7-Dibromo-2,1,3-benzothiadiazole eliminates guesswork. It’s tempting to gamble on price, but established suppliers offer extensive analysis data, impurity profiles, and batch histories.

    Stories circulate about purchases from less reputable channels: wrong isomer, contaminated batches, or unreliable shipment tracking have each interrupted promising early-stage studies. Choosing a widely validated intermediate like this minimizes those risks. Labs with a commitment to accuracy can’t afford unexpected surprises, especially as project scope grows or regulatory scrutiny increases.

    Smoothing Regulatory and Environmental Concerns

    Material safety and responsible handling draw more attention every year. 4,7-Dibromo-2,1,3-benzothiadiazole, with its established protocols for both storage and waste minimization, supports projects that must clear environmental audits. Labs adopting best practices—solvent recycling, minimized waste streams, and closed-loop processes—find this compound fits neatly into modern sustainability targets. Unlike some halogenated alternatives, it generates minimal problematic byproducts and is supported by thorough documentation, helping users anticipate and meet all pertinent regulations.

    Changing legal frameworks around importing and handling brominated products demand up-to-date internal controls. Suppliers keeping pace with changing laws avoid unnecessary compliance costs for their partners. Many leading companies now participate in routine audits, highlighting the importance of transparent, sustainable supply chains. These steps protect buyers from costly interruptions or surprises when expanding pilot runs or shifting production internationally.

    Personal Lessons Learned from Real-World Laboratory Experience

    Years at the bench have convinced me that core materials decide the fate of ambitious projects. I’ve used obscure and trendy intermediates before. Most made big promises but offered painful trade-offs in shelf life, reactivity, or safety. 4,7-Dibromo-2,1,3-benzothiadiazole stands apart because its obvious utility blends with an absence of drama. From glovebox synthesis to ambient scale-up, it’s as close to a “no surprises” reagent as one can hope to find.

    I’ve watched nervous technicians take comfort in the reliable appearance and ease of weighing. Repeated runs produced identical profiles, even when batches originated from different sites. That’s unusual in specialty chemicals and came to matter even more as projects transitioned from academia to pilot lines in industry partnerships.

    Some compounds don’t earn their cost, but dibromo benzothiadiazole paid off by slashing synthetic iterations. The workflows simplified, clean-ups shortened, and MSDS compliance rarely required more than the default laboratory protocols. Efficiency gains meant more time refining polymers and less time fixing avoidable problems.

    Practical Challenges and Opportunities for the Future

    No building block solves every problem. Labs pushing for lowest-possible reaction temperatures or testing new coupling catalysts occasionally wish for even faster-reacting analogs. There’s still room for innovation in catalyst compatibility and solvent systems, particularly for scaled-up, eco-friendly processes. That said, 4,7-Dibromo-2,1,3-benzothiadiazole’s wide compatibility helps bridge the gap across multiple process improvements as new techniques emerge.

    Makers of novel organic semiconductors continually experiment with updating side chains and ring substitutions, but most keep this core structure as a benchmark for comparing results. The continued pace of research into new cross-coupling conditions, greener solvents, and rapid characterization keeps this intermediate squarely relevant. The field’s best minds use it not because it’s trendy, but because it’s predictably effective.

    Collaborative Progress and Knowledge Sharing

    Strong science runs on a foundation of shared insight. The widespread adoption of 4,7-Dibromo-2,1,3-benzothiadiazole in leading research groups means that protocols become easier to compare and optimize. Academic and industry partnerships benefit from a shared vocabulary—one that includes trusted, consistent reagents like this. Published data sets, open-source methods, and collective troubleshooting advance faster when everyone’s on the same synthetic page.

    Open discussion about best practices and continual reporting of both successes and failures create a transparent culture that benefits new entrants as much as veteran researchers. Whether in scientific conferences, journal publications, or informal lab chats, I’ve noticed that a shared trust in fundamental reagents cuts down the time to new results. This spirit of openness reduces redundancy and feeds future innovation across the board.

    Beyond the Basics: Encouraging Future Generations of Chemists

    It’s easy for students and early-career scientists to get bogged down hunting for exotic or expensive materials, believing complexity alone signals progress. My own growth as a chemist has tracked closely with rethinking this assumption. Standard reagents with proven value, like 4,7-Dibromo-2,1,3-benzothiadiazole, shorten learning curves and lower the barrier to creative experimentation.

    By mastering reactions that depend on robust intermediates, trainees gain a stronger foothold for their first independent projects. The lessons learned—about precision weighing, planning, and execution—translate across specialties, preparing them for challenges in academia, industry, or entrepreneurship. Mentoring new chemists now, I find myself suggesting starting with proven building blocks. It leads to a more confident, resilient approach to scientific problem-solving.

    Looking Ahead—The Role of Reliable Chemical Building Blocks

    New discoveries in electronics, energy, and diagnostics demand starting materials that work, every time, for everyone. The journey from proof-of-concept to working prototype moves faster and with less friction when intermediates bring stable performance, clear documentation, and a proven track record. I’ve seen the impact that reliable access to 4,7-Dibromo-2,1,3-benzothiadiazole makes—projects don’t grind to a halt at the synthesis stage, and creativity can continue without unnecessary worry over the basics.

    As research communities in different parts of the world connect and collaborate more closely, standardizing on intermediates that pass the test—quality, reliability, safety—makes a real difference. The future brightens for device technology and green chemistry alike as teams trust in shared foundational materials. For all its apparent simplicity, this one molecule holds open the path to countless molecular innovations on the horizon.