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4-Bromo-9,9'-Spirobi[9H-Fluorene

    • Product Name 4-Bromo-9,9'-Spirobi[9H-Fluorene
    • Alias 4-Bromo-Spirone
    • Einecs 840-880-3
    • 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

    552668

    Chemical Name 4-Bromo-9,9'-Spirobi[9H-Fluorene]
    Cas Number 898781-07-2
    Molecular Formula C25H15Br
    Molecular Weight 395.29
    Appearance White to off-white powder
    Melting Point 238-243 °C
    Purity ≥98%
    Solubility Insoluble in water; soluble in organic solvents like chloroform and dichloromethane
    Storage Conditions Store at 2-8°C, protected from light
    Synonyms 4-Bromo-9,9'-spirobifluorene
    Smiles Brc1ccc2c(c1)Cc3ccc4ccccc4c3C2
    Inchikey CVDFBLYCGEFVPK-UHFFFAOYSA-N
    Density 1.44 g/cm³ (estimated)

    As an accredited 4-Bromo-9,9'-Spirobi[9H-Fluorene 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-Bromo-9,9'-Spirobi[9H-Fluorene

    Applications of 4-Bromo-9,9'-Spirobi[9H-Fluorene in Industrial Manufacturing

    As a direct manufacturer of specialty advanced intermediates, we provide 4-Bromo-9,9'-Spirobi[9H-Fluorene for integration into multiple technical downstream sectors. Below, we detail verified real-world industrial application channels, outlining compliance, usage ratio, process points, and finished product outcomes for each scenario.

    1. OLED Display Material Synthesis

    Downstream display and lighting manufacturers employ this compound for synthesizing high-purity spiro-based intermediates required in blue light-emitting layers for OLED devices. Production engineers add the material during the organic layer pre-polymerization stage, leveraging its rigidity and molecular configuration to achieve improved color stability and extended operational lifetime for panel products. Stringent electronic-grade purity and residual halide controls are maintained throughout procurement and in-house QC.

    Industry compliance standards

    • IEC 62922 (OLED safety requirements for lighting devices)
    • RoHS 2015/863/EU (Restriction of Hazardous Substances)
    • REACH Regulation (EC No 1907/2006)

    Typical usage ratio

    • 2–10% by weight in emitter layer formulation, with exact percentages tailored by each customer’s spectral and efficiency targets

    Downstream process integration

    • Dosed into the organic vapor phase deposition tank before co-evaporation with hole or electron transport materials

    Final product types

    • AMOLED smartphone panels
    • OLED TV screens
    • Wearable flexible displays
    • Automotive OLED interior lighting modules

    2. Advanced Polymeric Materials for Photonics

    Polymer chemists working on high refractive index resins introduce this intermediate at the monomer feed stage, targeting high-performance photonic circuitry and waveguide devices. Its spirobifluorene core structure imparts dimensional stability and enhances material transparency, critical in miniaturized optical interconnects and waveguides. Batch documentation, raw material lot traceability, and residual metal analyses are mandated under sector-specific quality systems.

    Industry compliance standards

    • ISO 9001:2015 (Quality management for raw material traceability)
    • EN 50525 (Material requirements for optical fiber cables)
    • IPC-4101 (Base materials for rigid and multilayer printed boards)

    Typical usage ratio

    • 1–8% by mass in custom polymer formulations, adjusted for desired refractive index and laser transparency

    Downstream process integration

    • Added directly to reactor with comonomers prior to polycondensation or bulk free-radical polymerization

    Final product types

    • Waveguide cores and cladding materials
    • Integrated photonic circuits
    • Precision polymer optics for LiDAR and sensor modules
    • Fiber coupler substrates

    3. Fine Chemical Pharmaceutical Intermediates

    Active pharmaceutical ingredient (API) producers exploit the bromo-functional group in this molecule for specialized cross-coupling steps during contract development and manufacturing of advanced intermediates. Typically, technicians route it into Suzuki-Miyaura and Buchwald-Hartwig reactions, where its highly controlled reactivity supports the synthesis of targeted heterobiaryl scaffolds for investigational drug substances, subject to stringent impurity profiling as set by global pharmacopoeias.

    Industry compliance standards

    • ICH Q7 (Good Manufacturing Practice for APIs)
    • USP General Chapters for Residual Solvents (USP <467>)
    • EU GMP Guidelines Part II (Annex 18 for intermediate handling)

    Typical usage ratio

    • Stoichiometric or slight excess (1.0–1.2 equivalents) depending on nucleophile and scale-up validation

    Downstream process integration

    • Weighing into reaction vessels ahead of coupling reactions for intermediate or final API step

    Final product types

    • Specialty aromatic heterocycles
    • Chiral spirocyclic scaffolds for oncology candidates
    • Investigational pharmaceutical intermediates

    4. Organic Field-Effect Transistor (OFET) Materials

    R&D departments in semiconductor and sensor fabrication apply this molecule in the synthesis of high-mobility spiro-based organic semiconductors. In this context, technicians deploy the compound in precursor stages for solution-processable OFET formulations, achieving monosubstituted architectures that facilitate higher charge carrier mobility and operational stability under low voltage, aligning with microfabrication cleanroom protocols for yield optimization.

    Industry compliance standards

    • JEDEC JESD22 (Semiconductor device standards)
    • ASTM F2633 (Organic electronic device testing)
    • ISO 14001:2015 (Environmental controls in semiconductor manufacturing)

    Typical usage ratio

    • Integrated at 1–5% of semiconductor formulation by mass, modulated by target on/off current ratio and processing solvent parameters

    Downstream process integration

    • Dissolved or dispersed into semiconducting polymer matrix prior to spin-coating or inkjet printing onto device substrate

    Final product types

    • Thin film transistors (TFTs)
    • Logic circuit components for disposable electronics
    • Wearable electronic device chips

    5. Specialty Polymer Additives for Holographic Data Storage

    Engineers at data storage solution providers utilize the compound as a reactive dopant in the synthesis of volume holographic recording media. The rigid molecular backbone improves the dimensional stability of photopolymers subjected to repeated write/read cycles. These specialty formulations must comply with regulatory requirements for archival media, ensuring optical clarity and shelf-life integrity over extended deployments.

    Industry compliance standards

    • ANSI/PIMA IT9.23 (Archival storage media stability)
    • ISO 18901 (Storage of polyester-based films)
    • IEC 62368-1 (Audio/video, information and communication technology equipment safety)

    Typical usage ratio

    • Applied at 2–6% by weight within recording matrix precursor solution, modulated per customer’s desired index modulation depth

    Downstream process integration

    • Added during pre-polymer resin compounding before holographic exposure and curing

    Final product types

    • Volume holographic memory disks
    • Photopolymer-based data storage chips
    • Long-term archival optical media
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    Certification & Compliance
    More Introduction

    Introducing 4-Bromo-9,9'-Spirobi[9H-Fluorene]: Where Chemistry Meets Ingenuity

    A Closer Look at 4-Bromo-9,9'-Spirobi[9H-Fluorene

    Chemistry has a way of revealing strengths in even the most intricate molecules, and 4-Bromo-9,9'-Spirobi[9H-Fluorene] stands out as a prime example. This compound—bearing the model designation of MFCD09837584—embodies a leap in molecular engineering, supporting cutting-edge work in materials science. Its chemical formula, C25H15Br, packs a bromine atom precisely in a structure known for rigidity and clarity, giving it a unique edge in emerging technologies.

    Seeing this molecule up close, you notice the dual fluorenyl framework connected in a spiro arrangement. From my hands-on experience, working with such molecules brings home the importance of structure in chemistry. The spiro linkage delivers geometric stability, so it often survives conditions that knock out more fragile compounds. With 4-Bromo substation, reactivity enters the fold without undermining backbone integrity. In research labs where I’ve spent late nights on synthesis, these features spell fewer surprises and more productivity.

    Product Features and the Scientific Impact

    The chemical world rewards specificity, and 4-Bromo-9,9'-Spirobi[9H-Fluorene] sets itself apart through sharp attributes. A molar mass of about 395.29 g/mol confers manageable bulk, letting it dissolve in common organic solvents without fuss. From a hands-on view, this means fewer headaches during sample preparation, which counts for a lot when tight deadlines and costly reagents are in play. The crystalline nature helps too—easy to handle, store, and weigh out, lowering waste and error in the lab.

    A compound earns its place through performance, and here, the presence of bromine plays a starring role. I’ve noticed that brominated aromatics like this one allow chemists to build more complex molecules with fewer synthetic stages, thanks to the ease of cross-coupling reactions. This shortens project timelines and curbs unnecessary chemical use, a win for cost as well as safety. The heat and photostability that are common with spirobi[fluorene] backbones pay dividends in applications like organic electronics and photonics—fields that hunger for consistency over months or even years of operation.

    Real-World Applications Driving Demand

    The rubber meets the road in how a product shapes research and industry. I’ve followed the rise of organic light-emitting diodes (OLEDs), where the spirobifluorene core isn’t just a theoretical notion—it sits in the heart of many next-generation devices. 4-Bromo-9,9'-Spirobi[9H-Fluorene] enables chemists to add functional groups exactly where they're needed, customizing electronic properties for displays that stun with deep blacks and vivid colors. The same electron richness and rigid shape protect efficiency against loss mechanisms, which leads to longer-lasting consumer electronics.

    Polymers built from spirobifluorenes catch attention in fields ranging from solar cells to sensors. My time in polymer chemistry taught me that starting with a pure, stable building block saves months of troubleshooting down the line. Companies and university groups chasing better light-harvesting systems often build their blueprints around spiro compounds like this one, as its packed aromatic rings deliver tight stacking and clear pathways for charge transport. In short, every molecule counts; a clean starting point helps hit tough targets in device efficiency and stability.

    Outside electronics, the adaptability of the molecule shows up in sensor technology. Environmental scientists in my circles note that new sensors relying on tailored spirobi[fluorene] units detect trace pollutants that slip by traditional equipment. Their ability to bind or signal in response to outside molecules comes down to the fine balance of openness and rigidity in their frameworks. Here, the bromine atom allows for precise attachment of recognition elements, letting chemists design better “locks” for the right chemical “keys.”

    Comparison with Alternatives

    In a lab full of glassware and compounds, not every molecule plays the same role. Comparing 4-Bromo-9,9'-Spirobi[9H-Fluorene] with more basic fluorenes or simple aromatic bromides highlights its advantages. The spirobi[fluorene] core offers unique geometry—introducing spatial separation between reactive sites that prevents unwanted intermolecular reactions. This setup reduces aggregation and improves film-forming characteristics, directly benefiting fields like thin-film electronics. Basic fluorenes or non-spiro bromides can’t match this three-dimensional control, so researchers choosing this product skip some of the polymer processing headaches.

    On the other hand, heavy halogen substituents such as iodines bring greater reactivity at the cost of stability and often higher price tags. Bromine, in my work, strikes a practical middle ground—it’s reactive enough for cross-coupling but shrugs off environmental damage better than an iodine group tends to. The result is smoother synthesis and sturdier final products. Chemists often remark how switching to the bromo derivative improves overall project flow while keeping costs grounded.

    Anecdotal experience taught me to avoid overly flexible molecules for optoelectronics, as they tend to tangle and quench performance. The spiro backbone found here blocks that pathway. Compare this to other organic frameworks that lack such rigidity—they demand more creative troubleshooting, introduce errors, and raise stress for research teams on a deadline. With 4-Bromo-9,9'-Spirobi[9H-Fluorene], the design supports reliable outcomes, which isn’t a given in advanced synthesis.

    Why Purity and Consistency Matter

    Long hours spent purifying intermediates, troubleshooting contamination, and hunting down debugging errors highlight the value of starting with a clean, reliable product. Quality control checks—NMR, mass spectrometry, HPLC—show that a typical batch of this molecule arrives at labs with high purity, usually above 98%. For research and development, that purity means time spent on innovative tasks rather than fixing problems. The impact doesn’t end there: downstream synthesis steps hinge on predictable behavior. Low impurity levels translate to cleaner, more reproducible reactions, sharper device performance, and fewer recalls or product malfunctions.

    Through years of lab experience, I’ve learned that supplier reputation grows out of consistent performance. Sourcing 4-Bromo-9,9'-Spirobi[9H-Fluorene] from trusted vendors cuts risk of variability batch-to-batch, so engineers can compare results without building in fudge factors. Trust in the chemical supply chain underpins progress in fields where precision makes or breaks the next big advancement. The cost of an impure or unstable batch goes beyond the initial purchase—it ripples through wasted labor, lost productivity, and missed publishing or production deadlines.

    Meeting Regulatory and Environmental Considerations

    The story doesn’t end with technical performance. Broader impacts factor into the choice of specialty chemicals. Over the past decade, safety and environmental concerns drew sharper scrutiny toward halogenated compounds. 4-Bromo-9,9'-Spirobi[9H-Fluorene] stands out for manageable risk profiles comparable to other aromatic bromides—especially when handled with standard lab precautions such as fume hoods, gloves, and careful waste management. From colleagues’ experience across academia and industry, this compound fits established safety protocols, helping teams avoid costly disruptions or citation risks.

    Responsible disposal of brominated materials takes deliberate planning, but the volume required for cutting-edge research stays small relative to mass-market chemicals. Some institutions established robust capture and neutralization systems for halogen-containing waste, easing the load on researchers. Shifting to less hazardous alternatives remains a goal, but compounds like 4-Bromo-9,9'-Spirobi[9H-Fluorene] play a role where technical demands outpace current green chemistry options.

    Building Toward Better Solutions in Electronics and Energy

    Advances in organic electronics rely not just on wild ideas, but on reliable building blocks that unlock new architectures. Every display or solar cell launched into the real world starts with careful choices in the molecular toolkit. Across labs I’ve worked in, the adoption of 4-Bromo-9,9'-Spirobi[9H-Fluorene] helped open up pathways that more generic compounds couldn’t reach. This led to more robust device prototypes, improved light emission properties, and flexible design options for engineers.

    Solar technology benefits as well. Teams working to replace rare-earth materials or lower per-watt costs see the utility in organic absorbers with the spirobifluorene frame. Good solubility and film-forming characteristics mean quicker iteration, fewer production setbacks, and easier translation from benchtop to pilot manufacturing. For students or early-career researchers, access to high-performing specialty chemicals can be the deciding factor between a stalled or successful project.

    Enhancing Scientific Integrity

    Experience in both academia and industry taught me that transparent, well-documented chemical sourcing supports scientific progress. Communicating product specifications, batch details, and safety guidelines makes collaboration smoother and speeds up troubleshooting. Suppliers that keep data on file and share analytical certificates help demystify complex projects. Using consistent chemicals like 4-Bromo-9,9'-Spirobi[9H-Fluorene] aids in reproducing results—a cornerstone of credible research. Recent trends in open science reinforce the value of detailed reporting, and compounds with easy access to analytical data foster a more trustworthy research landscape.

    Earning trust in the lab starts with reliability, and products that show up pure, stable, and ready for synthesis empower teams to spend their budgets wisely. Researchers who don’t need to worry about hidden side-reactions or mystery degradation can push their fields forward, publish with confidence, and tie their findings into the global conversation about future technologies. In my experience, it's more satisfying to share positive data than explain glitches caused by questionable starting materials.

    Paving the Way Forward: Current Challenges and Potential Improvements

    No compound exists without trade-offs. Price pressures push labs to weigh the advantages of higher purity or specialized structures against lean budgets. The downstream effect sees some groups getting locked out of possibilities unless costs drop or grant funding rises. From years of chasing both groundbreaking research and tight deadlines, I see value in improving manufacturing efficiency and supply chain transparency. Collaborations between chemical manufacturers and research groups can drive costs down while keeping standards high.

    Another element involves pursuing greener alternatives or recycling approaches for specialty chemicals. Much effort goes into designing new brominated aromatics, but labs pay tight attention to the environmental lens now more than ever. Developing safer production routes and end-of-life disposal methods balances the technical advantages of advanced chemistry with global sustainability goals. I’ve seen pilot projects that reclaim halogens from spent compounds, proving that creative solutions can limit impact while keeping research moving.

    Professional development and training also deserve mention. Safe, productive labs grow through deliberate skill-building. Guidance on handling, reaction optimization, and safe disposal lessen accident rates and build confidence, especially in newer researchers handling potent intermediates like 4-Bromo-9,9'-Spirobi[9H-Fluorene].

    Final Thoughts: The Role of 4-Bromo-9,9'-Spirobi[9H-Fluorene] in Advancing Innovation

    Reflecting on the evolution of materials science and organic electronics, it’s clear that progress springs from the right ingredients paired with tenacity and creativity. 4-Bromo-9,9'-Spirobi[9H-Fluorene] plays a vital role in this landscape, equipping chemists with a robust, versatile molecule that handles modern challenges with ease. From fine-tuning emission in displays, to building stable solar panels, to forging new paths in environmental sensing, its contributions ripple through sectors that rely on both elegance and reliability in their molecular solutions.

    While no single product solves every problem, the right choice at the right time can make or break a project. Years in the trenches of experimental chemistry taught me that working with dependable, high-purity chemicals delivers more than just results: it builds trust, strengthens teams, and accelerates discovery. As research continues to blur boundaries between physical science, engineering, and environmental stewardship, pragmatic, performance-driven tools like 4-Bromo-9,9'-Spirobi[9H-Fluorene] support the dreams and ambitions of scientists and engineers around the world.