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1,4-Dibromo-2,5-Diiodobenzene

    • Product Name 1,4-Dibromo-2,5-Diiodobenzene
    • Alias 1,4-Dibromo-2,5-Diiodobenzene
    • Einecs 848-184-0
    • 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
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    Specifications

    HS Code

    721499

    Chemicalname 1,4-Dibromo-2,5-Diiodobenzene
    Molecularformula C6H2Br2I2
    Molecularweight 503.71 g/mol
    Casnumber 62830-20-4
    Appearance White to off-white solid
    Meltingpoint 267-271 °C
    Boilingpoint Decomposes before boiling
    Density 3.11 g/cm³
    Solubility Insoluble in water; soluble in organic solvents
    Purity Typically >97%
    Synonyms 1,4-Dibromo-2,5-diiodobenzene; p-dibromo-diiodobenzene
    Smiles C1=CC(=C(C(=C1Br)I)Br)I

    As an accredited 1,4-Dibromo-2,5-Diiodobenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 1,4-Dibromo-2,5-Diiodobenzene

    Applications of 1,4-Dibromo-2,5-Diiodobenzene in Industrial Manufacturing

    As the original manufacturer, we supply 1,4-Dibromo-2,5-Diiodobenzene to demanding industrial partners for reliable integration into advanced organic synthesis sectors. This halogenated aromatic compound supports specialized molecular design, driving innovation in areas such as pharmaceutical intermediates, high-performance materials, and specialty electronics. Below we outline proven, industrially adopted application scenarios with compliance, technical, and formulation details based on direct feedback from leading downstream manufacturers.

    1. Pharmaceutical Intermediates for API Synthesis

    Innovators in active pharmaceutical ingredient (API) manufacture deploy this compound as a core aromatic building block for targeted, highly functionalized drug precursors. By leveraging its dihalogenated structure, process chemists achieve high selectivity in cross-coupling and substitution reactions. Its use streamlines late-stage diversification when producing advanced intermediates for sector-specific oncology, anti-viral, and rare-disease therapies in regulated cGMP environments.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • 21 CFR Part 210/211 (US FDA)
    • Guideline on the Chemistry of Active Substances (EMA)
    • Relevant local Pharmacopeia monographs (e.g., USP, EP, JP) for APIs

    Typical usage ratio

    • 0.5% to 5% w/w relative to total batch input for stepwise intermediate reactions; ratio adjusted based on target molecule configuration and downstream yield optimization

    Downstream process integration

    • Direct insertion during Suzuki, Stille, or Ullmann-type coupling reactions at intermediate synthesis stages, prior to final purification, with oversight of residual halide content in QC release

    Final product types

    • API intermediates for kinase inhibitors
    • Halogenated heterocycle-containing APIs
    • Synthetic building blocks for peptide-mimetic pharmaceuticals
    • Diagnostic imaging agent precursors

    2. Organic Electronic Materials: OLED and Semiconductor Fabrication

    Manufacturers of advanced organic optoelectronic devices introduce this molecule as a tailored halogen source in monomer and oligomer preparations. Its consistent reactivity and purity profile play a critical role in achieving high yields for pi-conjugated systems demanded by organic light-emitting diode (OLED) and thin-film transistor (TFT) technologies, especially where reproducible batch-to-batch performance is a necessity for scale-up.

    Industry compliance standards

    • IEC 62341 for OLED panels
    • RoHS Directive 2011/65/EU for hazardous materials in electronics
    • Restriction of PBT/vPvB substances (ECHA REACH)
    • ISO 9001:2015 for material quality assurance in electronics supply chain

    Typical usage ratio

    • 0.1% to 1.5% by weight in monomer solution; process engineers tune loading according to molecular design and optical property targets

    Downstream process integration

    • Precursor in palladium-catalyzed cross-coupling reactions during synthesizing functionalized monomers and oligomers; purification occurs before device fabrication to ensure low-level residuals in emissive layers

    Final product types

    • OLED emitter materials
    • Organic semiconducting layer precursors for TFT applications
    • Hole- and electron-transport layer additives
    • Specialty photoresists for microelectronic patterning

    3. Specialty Polymers and Advanced Material Synthesis

    Producers supplying high-performance polymers for demanding industrial sectors—such as aerospace composites and filtration—incorporate this dibromo-diiodinated benzene to introduce controlled halogen content, enabling tailored flame retardancy, chemical resistance, and cross-link density in the resultant macromolecules. Polymer synthesis teams use this targeted reactivity to increase polymer backbone rigidity and thermal stability during pilot and full-scale production.

    Industry compliance standards

    • UL 94 and IEC 60695 for flammability certification
    • REACH registration for polymer additives
    • ISO 14001 for environmental management in specialty materials production
    • ASTM D5207 for chemical resistance in polymer matrices

    Typical usage ratio

    • 0.3% to 2% based on target polymer system; formulation adjusted for end-use performance requirements and processability

    Downstream process integration

    • Integrated during initial polycondensation or polyaddition steps where halogen functionalization is essential for subsequent cross-linking or for imparting resistance to aggressive chemical environments

    Final product types

    • Flame-retardant polyimides and polyethers
    • High-spec filtration membrane base materials
    • Halogenated epoxy adhesives
    • Composite prepregs used in aerospace and automotive parts

    4. Fine Chemical Synthesis: Specialty Dyes and Pigments

    Commercial scale colorant manufacturers utilize the bifunctional halogenation of this compound to synthesize specialty dyes and pigments, particularly for high-performance applications such as industrial coatings and inkjet inks. Its defined reactivity supports synthesis routes where specific substitution patterns are vital to achieving target color strength, fastness, and chemical durability under end-use conditions ranging from textile printing to plastics coloration.

    Industry compliance standards

    • Oeko-Tex Standard 100 for textile dyes
    • EN 71-3 safety for toy coatings
    • ISO 787-24 for pigment chemical resistance
    • REACH Annex XVII for dye and pigment restrictors

    Typical usage ratio

    • 0.05% to 0.8% relative to total dye or pigment mass; altered based on chromophore target and pigment yield requirements

    Downstream process integration

    • Stepwise halogenation or coupling stage during functional dye or pigment core construction, followed by purification via crystallization and milling prior to dispersion formulation

    Final product types

    • Specialty azo and anthraquinone dyes for textile and paper
    • High-durability pigments for industrial paints
    • Colorants for high-resolution inkjet applications
    • UV-resistant plastics pigmentation agents
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    More Introduction

    Introducing 1,4-Dibromo-2,5-Diiodobenzene: Insight for Chemists and Synthesizers

    Understanding the Product

    If you’ve spent time in a synthesis laboratory, then you know the importance of choosing the right building blocks. One compound that often finds its way into advanced materials work is 1,4-Dibromo-2,5-Diiodobenzene. Chemists usually identify it by its straightforward structure: a benzene ring tagged with two bromine atoms opposite each other at the 1 and 4 positions, and two iodine atoms at the 2 and 5 positions. This particular arrangement sets it apart, unlocking specific reactivity and value that simpler halogenated benzenes can’t replicate.

    Molecular Structure and Key Specifications

    With a molecular formula of C6H2Br2I2, this compound weighs in with significant mass, contributed by the heavy halogens. That extra heft matters in certain types of synthesis – when purity and predictability become serious, this structure consistently delivers. Typical samples are solid, with a crystalline appearance hinting at its purity. Chemists who have handled it will recognize its characteristic melting point and stability, making it a consistent choice for work that has no room for surprises.

    Applications in Synthesis

    Several fields rely on cross-coupling chemistry, and that’s where 1,4-Dibromo-2,5-Diiodobenzene finds its spotlight. The molecule’s dual halogen sites mean researchers can run palladium-catalyzed couplings or other transition metal reactions, adding pieces on both the bromo and iodo sites. In practice, that lets you stitch together complex conjugated molecules for electronic uses, create functionalized polymers, or even build molecular scaffolds for pharmaceuticals. It’s a favorite among those working on organic electronic materials such as OLEDs or photovoltaic devices.

    Speaking from personal experience, swapping between halogenated benzenes can make or break a synthesis. With both bromine and iodine in a symmetrical set-up, this compound lets you plan stepwise functionalization. Iodine typically participates in cross-coupling more readily than bromine due to the weaker carbon-iodine bond, letting you selectively modify one site before the other. That flexibility shortens synthetic pathways and cuts down purification steps, leading to better efficiency in the lab.

    Comparing with Other Halogenated Benzenes

    Plenty of halogenated benzenes line the shelves, but few match the utility of this particular structure. Simple dibromobenzenes or diiodobenzenes can only deliver so much. Drop in a molecule like 1,4-Dibromo-2,5-Diiodobenzene and the whole dynamic shifts. Instead of juggling multiple reagents to get site-specific halogenation, you start with a ready-made scaffold. This built-in selectivity is a direct benefit for anyone aiming for multi-step synthesis – nobody misses routine column chromatography if you can avoid it.

    Academic researchers and industry practitioners alike notice where differences show up: reactivity, product yields, and potential byproduct formation. When using a molecule with both bromine and iodine, the difference in leaving group ability offers control that can translate to higher selectivity and improved product integrity. That comes in handy not only for bench chemists, but for those managing scale-up processes who want fewer headaches over waste streams or off-target reactions.

    Quality, Trust, and the Needs of Today’s Research

    Trust in a reagent comes from experience and demonstrated performance. Consistent quality and purity save researchers valuable hours, and in my own work, a high-purity batch means fewer troubleshooting sessions and more productive results. Reliable suppliers subject this compound to rigorous chromatographic and spectroscopic quality checks – NMR, mass spectrometry, and elemental analysis back up every batch. This traceability aligns with the broader movement toward more reproducible science, a guiding principle in both academia and industrial research settings.

    The basic need here is reliability. Laboratories counting on transparent results can’t afford questionable ingredients. That’s why high-quality 1,4-Dibromo-2,5-Diiodobenzene, once verified for purity, earns a permanent place in inventory for teams working at the frontier of polymer, pharmaceutical, or electronic materials research. It’s reassuring to know that the results you generate stand on the shoulders of well-designed, well-characterized reagents.

    Impact on Advanced Materials Research

    Polymer chemists and materials scientists pursue new structure–property relationships, and this compound pops up in the literature for its role as a core building block. For example, research into organic semiconductors and light-emitting materials frequently calls on this benzene derivative. Its dual halogen pattern isn’t just a synthetic curiosity; it serves as a platform for building complex, π-conjugated systems with tailored electronic traits. Those electronic properties set the performance limits in devices like organic field-effect transistors.

    In my own exposure to electronic material design projects, starting from a versatile intermediate makes all the difference. Less time fussing over the precursor means more time tuning the end product. That’s not just a matter of convenience; it’s about pushing the boundaries of device efficiency and stability. More researchers now expect their reagents to pull double duty: providing reactive handles for creative chemistry and standing up to scrutiny over trace impurities or unexpected side reactions.

    Environmental and Safety Considerations

    Handling halogenated aromatics always calls for respect and care. 1,4-Dibromo-2,5-Diiodobenzene, like many compounds in this class, warrants attention to responsible use and disposal. Robust safety practices, good ventilation, and thoughtful waste management all matter when these substances enter the workflow. Awareness about the persistence and potential environmental impact of halogenated aromatics grows every year; responsible chemists keep those considerations front of mind.

    Regulatory agencies in many countries place halogenated benzenes under specific scrutiny. Waste minimization strategies, such as maximizing conversion and recycling spent solvents, gain traction in progressive labs. As collective experience expands, so does the toolkit for managing these materials — safer storage containers, spill containment improvements, and greener protocols. Investing in training for lab workers on best practices allows better outcomes both for the people handling these chemicals and the broader environment.

    Supporting Cutting-Edge Synthesis

    Those working in chemical synthesis recognize how often outcomes depend on starting material quality and versatility. This substance becomes a linchpin wherever there’s a call for bifunctional aromatic cores. Its unique pattern allows for staged introduction of different side chains, giving chemists creative freedom. Experienced researchers rely on these triple-checked, multi-halogenated substrates rather than juggling separate mono-halogen benzenes, which require additional steps to achieve similar complexity.

    I remember a project aimed at constructing a ladder-type polymer. Without this precise aromatic core, our team would have carved out a much longer route across multiple protection and deprotection strategies. Instead, we got straight to the core transformations with high efficiency. That kind of leap saves not just time and resources, but also accelerates publication and commercialization for those driven by deadlines.

    Beyond the Bench: Scalability and Long-term Value

    Academic research groups might only need grams for exploratory studies, but the leap to industrial scale raises fresh questions. Does the compound maintain purity batch after batch? Are supply chains well-established? 1,4-Dibromo-2,5-Diiodobenzene has steadily built a track record for reliability even at larger scales. It’s become a critical link for companies commercializing new materials or pursuing greener pharmaceutical manufacturing routes. Real trust accumulates from consistent, real-world performance, not just flashy marketing.

    Global supply chains for specialty chemicals have faced tough tests in recent years. My colleagues in industry point to lead time, storage stability, and regulatory compliance as real concerns. Investing in a robust inventory of reliable intermediates such as this one pays forward by keeping production lines moving. For many organizations, avoiding delays means staying competitive, so decisions about starting materials ripple out into business outcomes. No research group or company wants to discover at the last minute that their chosen chemical isn’t available, or doesn’t meet the regulatory checkboxes that new eco-conscious markets demand.

    Potential Alternatives and Why This Compound Holds Its Place

    Chemistry always has alternatives – you could chain together other dihalogenated benzenes, but every workaround leaves its own set of issues behind. More asymmetric or mono-halogenated variants may force multiple reaction steps, layer on more purification, and introduce scaled-up risk of error or impurity retention. 1,4-Dibromo-2,5-Diiodobenzene demonstrates its worth in how cleanly it allows synthetic routes to stay focused and efficient. When efficiency and selectivity pay a premium in time and cost, more teams opt for a direct path.

    There’s wisdom in sticking with a well-characterized compound, especially when publications and patents increasingly demand exhaustive process documentation. A known entity reduces troubleshooting, lowers the learning curve for new lab members, and supports faster hypothesis-testing cycles. Sometimes, the best option stays the best not because it’s newer, but because it’s proven itself in real lab environments over and over.

    Improving Access and Sustainable Practice

    Rising demand for sustainable chemistry shapes everything from chemical sourcing to waste processing. Moving forward, it’s reasonable to expect that industrial suppliers will pivot toward greener routes, not just for 1,4-Dibromo-2,5-Diiodobenzene but across the portfolio. Catalytic methods for halogenation, improved atom economy, and integrated recycling move from the academic literature into factory floors, often spurred by collaborative research projects.

    My experiences with supply chain discussions illustrate how cost pressures influence which sustainability improvements move fastest. When buyers prioritize verified, sustainably produced materials, suppliers innovate to meet the challenge. Chemists, in turn, benefit from compounds with reduced environmental footprint, and the field moves toward more responsible stewardship of finite resources.

    Expertise and Authenticity: Navigating Choices

    Chemists today face more options than ever before and with those choices comes the responsibility to dig deeper than a simple catalog listing. A product like 1,4-Dibromo-2,5-Diiodobenzene merits close attention to provenance, supporting data, and supplier transparency. This isn’t academic nit-picking; it shapes whether months of synthesis generate reliable outcomes or frustrating setbacks. Drawing on input from experienced researchers streamlines decision-making, so newer entrants don’t repeat old mistakes.

    Peer-reviewed literature gives a roadmap, but lived experience fine-tunes those recommendations. Sometimes a compound’s purity specification doesn’t align with the needs of sensitive applications – a point you only uncover through hands-on work. Authentic input from teams who have run these syntheses and published their data gives the next generation of researchers a step up, instead of re-treading the same ground.

    Building Knowledge and Community Standards

    Open sharing of successes and failure, especially with structural intermediates like this, enriches both the professional and academic community. Detailed lab notes about handling quirks, reaction setup, or post-reaction purification are worth their weight in gold. Communities focused on collaborative improvement drive quality upwards, so suppliers adapt their product offerings to the legitimate needs revealed in real-world labs, instead of guessing at priorities.

    Several industry groups and international consortia now publish shared protocols, databases of synthetic routes, and feedback over time. Engaged practitioners contribute back not just corrections but new insights. For 1,4-Dibromo-2,5-Diiodobenzene, this has meant growing knowledge about alternate uses, less conventional coupling partners, or even solvent tweaks that boost yield. In practice, this constant communication helps everyone get more value from each gram ordered, upping both efficiency and output quality.

    Educating the Next Wave of Scientists

    Plenty of stories circulate among chemists about the lessons learned working with challenging reagents — 1,4-Dibromo-2,5-Diiodobenzene has earned a spot in chemistry textbooks and lab courses for students learning the ropes of cross-coupling. In advanced coursework and mentorship, emphasizing both technique and critical thinking about reagent choice helps train flexible, resourceful scientists. Students benefit from handling authentic compounds, uncovering both their advantages and limitations firsthand, rather than relying only on diagrams or digital simulations.

    Laboratory coursework increasingly weaves sustainability, safety, and data transparency into every procedure. Tomorrow’s chemist builds the habit of checking certifications, reviewing batch information, and reflecting on broader impacts before unscrewing a reagent jar. Giving practical exposure to trusted synthons like this one solidifies those lessons, building long-term habits that improve both results and workplace safety.

    Looking Forward: Innovation and Anticipated Shifts

    No product stays static forever, and for a cornerstone compound like this, innovation happens both at the production and application end. Advances in sustainable bromination and iodination techniques signal a trend toward cleaner, more resource-efficient synthesis. Meanwhile, the push for advanced functional materials means researchers experiment constantly with new reaction partners, conditions, and downstream uses for intermediates like this one.

    Integrated digital lab management tools and wider adoption of data-driven quality control promise even tighter standards for purity, traceability, and reproducibility. As these tools weave into standard practice, every lot of 1,4-Dibromo-2,5-Diiodobenzene gets indexed, tracked, and referenced throughout its lifecycle. That transparency benefits everyone downstream: bench scientists, regulatory reviewers, and eventually, end-users relying on downstream products for health, technology, or energy applications.

    Conclusion: The Enduring Value of Strategic Chemical Building Blocks

    The ability to make thoughtful, strategic choices about starting materials underpins nearly every modern chemistry achievement. As I’ve seen throughout my own journey, well-designed intermediates aren’t just a convenience; they’re tools for advancing both knowledge and technology. 1,4-Dibromo-2,5-Diiodobenzene illustrates how a carefully tailored compound continues to find new roles – powering faster synthesis, accelerating discovery, and upholding reliability even as scientific priorities shift.

    Research will keep pressing forward, demanding ever-better performance, transparency, and responsibility from the chemicals at its foundation. With the right mix of experience, collaboration, and technical rigor, experts can harness compounds like this to meet emerging challenges and transform big ideas into practical reality. This kind of progress is measured in experiments run, discoveries made, and trust earned, one batch at a time.