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1,2-Di(4-Bromobenzene)-1,2-Diphenylene

    • Product Name 1,2-Di(4-Bromobenzene)-1,2-Diphenylene
    • Alias 4,4'-Bis(4-bromophenyl)-1,1'-biphenyl
    • Einecs 631-789-6
    • 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

    275452

    Iupac Name 1,2-Bis(4-bromophenyl)-1,2-diphenylethane
    Molecular Formula C26H18Br2
    Cas Number 17016-62-7
    Appearance White to off-white solid
    Melting Point 228-230 °C
    Solubility In Water Insoluble
    Solubility In Organic Solvents Soluble in chloroform, dichloromethane
    Density 1.43 g/cm³
    Purity Typically ≥98%
    Storage Conditions Store at room temperature, keep dry

    As an accredited 1,2-Di(4-Bromobenzene)-1,2-Diphenylene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 1,2-Di(4-Bromobenzene)-1,2-Diphenylene

    Applications of 1,2-Di(4-Bromobenzene)-1,2-Diphenylene in Industrial Manufacturing

    As an established producer of advanced brominated aromatics, we supply 1,2-Di(4-Bromobenzene)-1,2-Diphenylene to downstream partners operating in critical polymer, electronic, coating, and specialty material markets. This compound’s precise functionality and established compliance history enable manufacturers to meet stringent application demands. Below we detail key market segments and the specific role this chemical plays in each downstream process.

    1. High-Performance Engineering Plastics as Flame Retardant Intermediate

    Manufacturers engaged in the compounding of engineering thermoplastics incorporate this material as an advanced brominated flame retardant building block. Its highly defined molecular structure supports stringent fire safety targets while enabling production of thermally stable, mechanically reliable resins aimed at technical components for transportation, E&E, and appliance industries.

    Industry compliance standards

    • UL 94 V-0 & 5VA flammability standards
    • IEC 60695 series (fire hazard testing of polymer parts)
    • RoHS (2023/65/EU), for restricted brominated substances management
    • REACH Annex XVII (Restriction of polybrominated chemicals in plastics)

    Typical usage ratio

    • 2–12% by resin mass in polycarbonate and PC/ABS blends; processed to meet target V-0 or V-1 flammability ratings and adjusted for final part thickness and mechanical requirements

    Downstream process integration

    • Direct addition during resin extrusion and compounding, either as a pure powder or pre-dispersed masterbatch; post-bromination functionalization not required at user level

    Final product types

    • Automotive switches and electrical housing components
    • Household appliance frames and interior electrical fixtures
    • Connectors in information technology assemblies
    • Structural panels for transit and public infrastructure

    2. Liquid Crystal Polymer (LCP) Synthesis for Electronic Connectors

    Compounders of high-grade LCPs rely on our material as a halogenated aromatic monomer in the polymer backbone. This input enables the resulting LCP granules to deliver dimensional stability and low dielectric loss required for microelectronic interconnects and high-frequency transmission hardware.

    Industry compliance standards

    • IPC-4101 (Base materials for rigid and multilayer printed boards)
    • IEC 61249-2-43 (Plastic materials flammability in PCBs)
    • UL 746B (Polymeric material performance for electrical applications)
    • RoHS and WEEE directives (halogen management in PCB materials)

    Typical usage ratio

    • 0.8–4% as comonomer feedstock; the precise level determined by targeted flame retardancy and mechanical benchmarks of the LCP batch

    Downstream process integration

    • Direct feed into polycondensation reactors during LCP synthesis, introduced alongside terephthaloyl chloride and other co-monomers, with rigorous stoichiometric control

    Final product types

    • Precision SMD sockets and micro-connectors
    • High-density multilayer PCB substrates
    • Flexible circuits for consumer electronics
    • Insulating sleeves for high-speed cables

    3. Specialty Coating Formulations for Thermal and Electrical Insulation

    Coating producers employ this aromatic in the synthesis of specialty halogenated oligomers and prepolymers for rigid and flexible surface coatings. The resulting coatings provide enhanced heat resistance and surface insulation properties tailored for industrial and consumer electronic applications in stringent regulatory environments.

    Industry compliance standards

    • IEC 60085 (Thermal class ratings for electrical insulation)
    • ASTM D3159 (Standard for electrical insulating varnishes)
    • GB/T 19212 (Chinese standards for transformer insulation coatings)
    • California Prop 65 (listing for halogenated compounds in coatings)

    Typical usage ratio

    • 5–15% incorporated during oligomer synthesis, with variation according to target film thickness, desired breakdown voltage, and heat resistance grade

    Downstream process integration

    • Core monomer input into batch or continuous reactor systems during prepolymer/oligomer synthesis, followed by blending with other modifiers and dispersants before application to substrates

    Final product types

    • Insulating varnishes for motor windings and stators
    • Protective conformal coatings for printed electronic assemblies
    • Thermal barrier coatings on metal chassis and circuit boards
    • High-voltage cable insulation paints

    4. Organic Synthesis of Advanced Dye Intermediates

    Manufacturers in the specialty dye sector select our compound as a brominated aromatic core for the construction of high-performance dye intermediates via targeted substitution and coupling reactions. Its defined reactivity profile facilitates precise introduction of functional chromophores, supporting the development of high-purity coloration systems for industrial and technical textiles.

    Industry compliance standards

    • OEKO-TEX Standard 100 (textile input safety)
    • REACH Annex XVII (prohibition thresholds for certain brominated aromatic dye precursors)
    • ISO 9001:2015 (Manufacturing QC for dye synthesis)
    • ZDHC MRSL (Zero Discharge of Hazardous Chemicals restrictions for textile dyes)

    Typical usage ratio

    • Variable from 1–7 mol% as a central building block in dye precursor synthesis; specific levels dictated by target molecular weight and intensity of chromophore system

    Downstream process integration

    • Reactant charged to controlled bromination or Suzuki coupling reactors, followed by separation and further functionalization towards desired colorant structure

    Final product types

    • Disperse and vat dyes for synthetic fibers
    • Functional pigment intermediates for technical coatings
    • High-stability colorants for industrial leathers
    • UV-resistant dye systems for automotive textiles
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    Certification & Compliance
    More Introduction

    Getting to Know 1,2-Di(4-Bromobenzene)-1,2-Diphenylene: More Than Just a Chemical

    1,2-Di(4-Bromobenzene)-1,2-Diphenylene doesn’t spark a reaction outside a chemistry lab at first mention, but there’s a lot going on underneath the surface. At a glance, this compound looks like it belongs buried in journals that only seasoned chemists read. Yet its value, from research breakthroughs to specialty materials, shapes more than a handful of products and innovations. My time in research and the specialty chemicals trade taught me that the story behind every bottle is part discovery and part practicality.

    Model and Specifications: Going Beyond the Label

    The standard model of 1,2-Di(4-Bromobenzene)-1,2-Diphenylene offers two bromine atoms attached to the 4-position of each benzene ring flanking a diphenylene backbone. What really matters — beyond the IUPAC name on the label — lies in its purity, its form, and how it can slot into reactions. Most reputable vendors offer material in fine crystalline or powder states, with purity sitting above 98% as confirmed by NMR and HPLC analysis. That level of assurance makes all the difference; small impurities can derail a week of effort in synthesis or throw off the interpretation of data in academic projects.

    Packing and storage aren’t afterthoughts either. Moisture and light degrade sensitive aromatic compounds like this one, so proper amber glass and sealants usually come as standard from trustworthy suppliers. Bulk orders for scale-ups tend to demand stricter quality checks, more batch data, and extra documentation to track stability. It seems simple, but I’ve learned the hard way that ignoring these basics only causes setbacks or unwelcome surprises down the line.

    Where the Chemistry Hits the Real World: Practical Uses

    People rarely ask me about niche diaryl molecules at dinner parties, yet these compounds shape more real-world applications than patent filings let on. 1,2-Di(4-Bromobenzene)-1,2-Diphenylene takes on the role of a building block in complex syntheses, especially for organic electronics and advanced materials. Growing demand for organic semiconductors, OLED displays, and even light-harvesting devices owes a lot to trusted intermediates like this compound.

    The bromine atoms act as convenient entry points for cross-coupling reactions, including Suzuki, Stille, and Heck processes. For researchers pushing the limits on polymer chemistry, these positions allow a great deal of fine-tuning. Ligands, dendrimers, and custom π-conjugated systems often rely on diaryl derivatives like this one for both structure and reactivity. My own experience in organic synthesis laboratories made it clear: reliable, high-purity starting materials prevent headaches later on and open doors to discoveries that might be missed with less precise chemistry.

    Environmental stability and ease of functionalization draw researchers and R&D teams back to this compound. Its backbone’s rigidity locks in the desired electronic properties, and its bromine handles grant access to dozens of downstream molecules. That flexibility stands out, especially for groups chasing novel materials for solar cells, sensors, or specialty coatings.

    Standing Apart from the Crowd: What Sets This Product Apart

    The specialty chemicals market brims with similar-sounding materials, so choosing the best fit comes down to both theoretical advantages and hands-on realities. Many competitors land in a gray area between reactivity and stability. 1,2-Di(4-Bromobenzene)-1,2-Diphenylene manages to offer high reactivity without sacrificing shelf-life or handling safety. Some analogs swap the bromine atoms for chlorine or iodine. That can mean lower reactivity, less predictable outcomes, or difficulties in scale-up.

    From a synthesis perspective, bromine provides a sweet spot — not as volatile as iodine, not as unreactive as chlorine in standard coupling reactions. Results tend to be more reproducible, especially for larger bench-scale or pilot batches. The compound’s symmetry and substantial rigidity yield cleaner NMR spectra and help researchers distinguish byproducts or side reactions, critical for troubleshooting or quality control.

    Anyone who’s worked with copper-catalyzed coupling understands the pains of dealing with inconsistent starting materials, where a minor change in substituent or purity cascades across an entire project. I’ve watched teams troubleshoot for weeks because a supplier cut corners with their quality checks. With a clean track record for purity and authentication, this diaryl product avoids those costly detours.

    Reliability in Research and Industry: Focusing on What Gets Results

    Too often, companies fall into the trap of chasing the latest technical buzzwords while forgetting the real goal — results that matter. 1,2-Di(4-Bromobenzene)-1,2-Diphenylene maintains a reputation for consistency. If reproducible, high-yield reactions are the aim, nothing frustrates more than a batch riddled with unknowns. Chasing after technology that promises dramatic improvements only to discover unstable performance or poor documentation drains resources and morale.

    Reliability doesn’t mean flashiness. The best projects I’ve been part of relied less on newness and more on verified batch records, clear safety data, and open lines of communication with suppliers. Here, that means every new shipment of 1,2-Di(4-Bromobenzene)-1,2-Diphenylene comes with current COA documentation, batch-specific spectral data, and transparent sourcing information. Solid evidence of quality gives peace of mind to both research teams and those overseeing budgets.

    The Human Element in Chemical Innovation

    One lesson that stands out from years spent around lab benches and pilot plants — chemistry, at its best, isn’t just about molecules but the people using them. The jump from research vial to manufacturing reactor takes more than just technical specifications. Researchers, engineers, and product managers want materials that don’t slow progress with unexpected variables.

    1,2-Di(4-Bromobenzene)-1,2-Diphenylene regularly finds itself in cutting-edge applications as well as teaching labs. Undergrads run Suzuki reactions with it for their first exposures to cross-coupling. Teams in the electronics industry scale up the same fundamental chemistry to churn out kilo batches for device prototyping. Its role as a cornerstone for modular design — both for advanced electronics and academic projects — depends on both versatility and confidence in each batch.

    Industry feedback often singles out this diaryl as easier to use, easier to purify, and more likely to meet regulatory checkpoints. Lessons from supply chain disruptions during major global crises pushed many companies to double down on material traceability and product documentation. Products with strong, transparent supply records and reliable documentation have become the go-to choice for teams that don’t want their projects derailed by inconsistent or poorly tracked intermediates.

    Addressing Challenges: What Could Be Improved?

    Even the most robust material could use refinement. One consistent challenge has always been balancing regulatory compliance with the push for higher performance. Those working in regulated markets, especially in electronics and advanced materials, need assurance that each batch ticks every box for permissible contaminant levels. Samples with residual heavy metals or cross-contamination from production lines will get flagged quickly in pre-qualification screenings. Getting better at upstream analytical quality checks and investing in consistent, high-frequency monitoring pays off — fewer headaches for both producers and customers.

    Sustainability presents another pressure point. Large-scale synthesis of brominated aromatics often means grappling with hazardous byproducts and waste. Leading suppliers have moved away from dated bromination routes toward greener alternatives, such as transition-metal-free protocols or catalytic processes that reduce overall waste burden. Reduced environmental impact isn’t just about optics. Labs and production facilities increasingly face accountability when it comes to hazardous waste and emissions, especially in Europe and North America. I’ve worked with teams that transitioned suppliers after discovering that the environmental cost of one intermediate outstripped any cost savings from lower per-gram prices.

    Researchers want robust alternatives when possible. Progress in making diaryl compounds with less toxic or more renewable inputs would help everyone — from bench chemists to those at the policy table. Companies that share their sustainability data openly and push for more closed-loop manufacturing systems stand out, especially as customers and governments look harder at full life cycle impacts.

    The Future of Design and Discovery: How 1,2-Di(4-Bromobenzene)-1,2-Diphenylene Fits In

    As the push for lighter, more flexible electronics continues, diaryl compounds like this one remain crucial for innovation. Research trends keep shifting toward multi-functionality — materials that serve not just as passive components but also deliver unique optical, electrical, or sensing properties. The backbone of 1,2-Di(4-Bromobenzene)-1,2-Diphenylene, with its combination of rigidity and modular reactivity, ticks both boxes for future-oriented design.

    Start-ups and traditional companies both keep an eye on material security. Stories about sudden shortages or regulatory clampdowns on halogenated intermediates remind everyone that a project’s pace often depends on the reliability, traceability, and flexibility of key materials. That’s especially true as governments tighten oversight on brominated and aromatic chemicals.

    I’ve seen teams that once took material traceability for granted now demand supplier certifications on everything from solvent residues to carbon footprint assessments. The industry culture has shifted decisively toward transparency. Those supplying 1,2-Di(4-Bromobenzene)-1,2-Diphenylene — and those who use it — keep pressing for better recordkeeping, more robust testing, and a culture of problem solving that extends beyond just passing QC checks.

    Trust, Traceability, and the Bottom Line

    Material reliability saves more than just time. The cost of one batch failing unpredictably can dwarf the savings made on a low-price, no-questions-asked supplier. For teams juggling multiple priorities — tight deadlines, safety considerations, regulatory filings — trust in the starting material remains key. That means suppliers offering quick answers to technical queries, open sharing of traceability data, and fast resolution of shipment issues. In an age of supply-chain unpredictability, that responsiveness matters as much as the chemistry itself.

    One important shift has been the rise of digital batch tracking and real-time inventory management. Research teams and supply managers appreciate being able to trace a chemical from production line to their own shelves. Labs that once treated reagents as black boxes now insist on digital logs, scanned COAs, and even secure cloud access to spectral data as standard. That level of accessibility allows quick troubleshooting and a culture of continuous improvement. It moves quality assurance from a once-a-year audit to something closer to daily best practice.

    I’ve noticed that teams who practice this level of transparency — and vendors who keep up — tend to deliver more innovations and fewer costly recalls. Traceability, both digital and procedural, has become a new benchmark for trust in the specialty chemicals sector.

    Looking at the Field: Competitive Landscape and Informed Choice

    No single product stands alone in a vacuum. Competing diaryl and halogenated materials all lay claim to unique features. Some emphasize marginally higher reactivity, others prioritize easier handling or lower toxicity. For teams deciding between these options, a few key questions guide the choice — does the product deliver as promised every time, or is every new order a dice roll? Is there meaningful support, or just a standard product description?

    1,2-Di(4-Bromobenzene)-1,2-Diphenylene earns respect in the marketplace not by chasing the latest fad, but by doing the basic things right. Rapid technical support, batch transparency, and a focus on what users actually need defines long-term satisfaction. Customers looking for one-stop supplies of diaryl halides, especially in demanding regulatory markets, should look beyond just a name and numbers. Track record, reliability, and supplier responsiveness make far more difference in daily lab work than any buzzword on a web page.

    Supporting Breakthroughs: How the Product Drives Discovery

    Specialty chemicals don’t inspire the same fanfare as solar panels or smart sensors, but every innovation builds on the smallest building blocks. In academic research, 1,2-Di(4-Bromobenzene)-1,2-Diphenylene supports the push toward organic electronics, functional polymers, and photonic devices. Its reliability means teams can spend less time troubleshooting and more time pushing their projects forward. I’ve seen open-source chemistry projects leverage this compound to democratize access to materials once considered out of reach.

    Commercial teams often share stories about the difference between a stalled project and a successful prototype coming down to the reproducibility of a single intermediate. Success stories in organic semiconductors and next-generation OLED displays often trace back, in part, to solid, reliable diaryl building blocks.

    Ideas for Improvement: Listening to the End User

    Feedback culture isn’t just a slogan. The fastest advances I’ve witnessed came from suppliers who listened when customers said something didn’t work: batches packed under inert gas for export, streamlined digital COAs, or even custom-packaged micro lots tailored for high-throughput screening. These practical adjustments mean users get more out of every gram purchased, and the supplier earns more business and trust.

    For a product like 1,2-Di(4-Bromobenzene)-1,2-Diphenylene, ongoing dialogue between labs and suppliers stands out as a best practice. End users want quicker access to new analytical data, updates on process improvements, and honest estimations of lead times — not just an automated shipping email. Real-world challenges, like adapting to new regulations or changes in demand, get ironed out fastest when communication lines stay open.

    On a larger scale, academic and commercial researchers want suppliers ready to engage on big-picture questions — not just price and purity, but sustainability, compliance, and shared responsibility across the supply chain. Progress comes not from tweaking technical specifications in isolation, but from building relationships styled around mutual growth and trust.

    Final Thoughts on Where Things Stand

    1,2-Di(4-Bromobenzene)-1,2-Diphenylene isn’t about flash. The value in this compound lives in what it allows researchers and manufacturers to create. Everything from experimental devices to commercial chemical processes relies on foundational molecules that work as promised. My years working in and around specialty chemicals make it clear — performance, reliability, and open communication drive real progress.

    Choice isn’t just about what sits on a spec sheet; it’s about delivery, support, and a shared commitment to higher standards. With global supply chains facing more scrutiny than ever, products that blend technical strength with transparent business practices stand out. Those using 1,2-Di(4-Bromobenzene)-1,2-Diphenylene day-to-day know that the details matter and put a premium on anything that helps them keep learning, improving, and delivering what science and industry demand.