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2,7-Dibromo-9-Phenyl-9H-Carbazole

    • Product Name 2,7-Dibromo-9-Phenyl-9H-Carbazole
    • Alias 2,7-Dibromo-9-phenylcarbazole
    • Einecs 629-862-9
    • 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

    424753

    Product Name 2,7-Dibromo-9-Phenyl-9H-Carbazole
    Cas Number 1340190-44-0
    Molecular Formula C18H11Br2N
    Molecular Weight 415.09 g/mol
    Appearance Off-white to pale yellow powder
    Purity Typically ≥98%
    Solubility Soluble in organic solvents like chloroform, dichloromethane
    Chemical Class Carbazole derivative
    Smiles Brc1ccc2c(c1)N(c3ccccc3)c4ccc(Br)cc4-2
    Synonyms 2,7-Dibromo-9-phenylcarbazole
    Storage Conditions Store at 2-8°C, protected from light and moisture

    As an accredited 2,7-Dibromo-9-Phenyl-9H-Carbazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 2,7-Dibromo-9-Phenyl-9H-Carbazole

    Applications of 2,7-Dibromo-9-Phenyl-9H-Carbazole in Industrial Manufacturing

    As the original producer of 2,7-Dibromo-9-Phenyl-9H-Carbazole, we supply high-purity intermediate to leading manufacturing enterprises requiring reliable sourcing for advanced organic synthesis. Below we outline several key industrial applications, each based on established downstream production routes and documented formulation and compliance requirements.

    1. High-Performance OLED Material Synthesis

    Manufacturers use this intermediate in the controlled synthesis of OLED emitter and host materials. The compound enables targeted halogen functionalization, ensuring precise molecular alignment during Suzuki-Miyaura or Buchwald–Hartwig cross-coupling reactions. Downstream clients incorporate it at the monomer stage, introducing it into proprietary multi-step organic syntheses to tailor charge transport and photoluminescence properties for commercial device fabrication.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006 for chemicals entering the EU
    • RoHS 2011/65/EU for electronics applications
    • IEC 62321 testing for specific substances in product substrates
    • ISO 9001:2015 for quality management throughout the supplier chain

    Typical usage ratio

    • In pre-polymerization steps: 3–11 wt% based on target device design
    • Usage depends on molar ratio with co-monomers and end-group modifications

    Downstream process integration

    • Acts as a halide building block in cross-coupling reactions
    • Feeds directly into precursor synthesis for OLED small molecule hosts and emitters
    • Integrated during high-vacuum sublimation purification stages
    • Used in pilot and production-line scale-up batches for material consistency

    Final product types

    • Blue, green, and red OLED display panels
    • Flexible and rigid OLED lighting modules
    • Commercial smartphone and TV organic displays
    • Wearable organic optoelectronics

    2. Specialty Polymers for High-Temperature Insulation

    Producers of advanced polymers select this raw material for synthesizing carbazole-based copolymers with tailored brominated sites. These resins exhibit high glass transition temperatures and thermal oxidation resistance. Engineers introduce the compound at the pre-polymer stage, using it as a reactive unit within proprietary aryl polymerization schemes to enhance dielectric strength and flame retardancy for electronic insulation applications.

    Industry compliance standards

    • UL 94 V-0 classification for flame-retardant polymers
    • IEC 60695 for safety testing of electrical materials
    • RoHS directives for restricted substances
    • ISO 14001 for environmental management in polymer manufacturing

    Typical usage ratio

    • Ranges from 5–20 mol% in relation to other comonomers in specialty copolymers
    • Adjusted for molecular weight control and final resin properties

    Downstream process integration

    • Added to the reactor during initial charge with other monomers
    • Subjected to step-growth polymerization conditions
    • Directly influences halogen content in resulting resin
    • Employed in solution or melt-phase polymerizations depending on end-use

    Final product types

    • Flexible printed circuit board insulators
    • Encapsulation coatings for high-density electronics
    • Co-molded high-temp connectors
    • Thermally stable electronic adhesives

    3. Advanced Pharmaceutical Intermediate Synthesis

    Chemical processors specializing in API and advanced intermediate synthesis utilize this carbazole derivative as a halogenated scaffold for constructing nitrogen-containing heterocycles. The dibromo-phenyl substituents facilitate regioselective introduction of diverse pharmacophores during Pd-catalyzed amination and coupling reactions. Strict traceability and batch control remain essential throughout production for compliance and quality validation.

    Industry compliance standards

    • Good Manufacturing Practice (GMP), ICH Q7 guidelines
    • ISO 14644 cleanroom production environments
    • USP-NF and EP monograph impurity controls for APIs
    • 21 CFR Part 210/211 for finished pharmaceuticals in the United States

    Typical usage ratio

    • Introduced at 1–6 wt% in multi-step synthesis—concentration based on route efficiency and end-product yield
    • Adjustments depend on required scale and downstream conversion ratios

    Downstream process integration

    • Used at early-stage alkylation or arylation steps
    • Enters catalyst-driven batch reactors as a limiting reagent
    • Batches processed by rotary evaporation and chromatographic purification
    • Intermediate subjected to successive functionalization or cyclization

    Final product types

    • Building blocks for antineoplastic and CNS active APIs
    • Pilot-scale heterocyclic research intermediates
    • Custom-synthesized drug substance scaffolds
    • Pharmaceutical compound libraries

    4. Organic Photovoltaic (OPV) Material Production

    Downstream firms in the renewable energy sector process this carbazole-based intermediate, targeting the fabrication of donor or acceptor units for organic photovoltaic cells. Its dibrominated sites enable controlled polymerization with electron-rich and electron-deficient moieties during coupling reactions, yielding high-performance absorption layers. Inline QA monitoring ensures trace levels of residual bromine and byproducts comply with solar industry requirements.

    Industry compliance standards

    • IEC 61215 for thin-film solar module qualification
    • ISO 9001:2015 for uniform QC in electronic materials
    • OECD Mutual Acceptance of Data for chemical evaluation
    • Restriction of Hazardous Substances Directive for consumer energy products

    Typical usage ratio

    • Utilized at 2–12 wt% relative to other monomers in copolymer or oligomer synthesis
    • Adjusted for charge-transport optimization and film-forming balance

    Downstream process integration

    • Fed into coupling reactors during the synthesis of donor/acceptor polymers
    • Subjected to in-line purification before film deposition processes
    • Quality monitored for photostability and electronic homogeneity
    • Processed in continuous or batch production depending on module design

    Final product types

    • Organic solar cell active layers
    • Semi-transparent photovoltaic panels
    • Building-integrated OPV devices
    • Flexible solar foils for portable energy systems

    5. Speciality Dyes and Pigment Intermediates

    Color chemistry firms select this halogenated carbazole to serve as a key intermediate for synthesizing specialty dyes with improved thermal and light stability. The bromine atoms facilitate subsequent cross-coupling functionalization, allowing precise control over chromophore extension and electron distribution within pigment molecules. Process engineers introduce the compound at target molar ratios during dye core assembly, maintaining strict color consistency and hazard control throughout manufacturing.

    Industry compliance standards

    • EN 71-3 safety for toys and pigments in coloring plastics
    • ETAD code of practice for dye intermediates
    • REACH registration for colorant substances
    • ISO 787/24 for color strength verification and purity

    Typical usage ratio

    • Ranges from 2–8 wt% in pigment precursor synthesis depending on targeted shade and functional group compatibility
    • Ratio varies based on co-monomer selection and pigment class

    Downstream process integration

    • Added to the main reaction vessel at initialization of colorant synthesis
    • Used in the formation of extended aromatic systems via controlled coupling
    • Carried through purification by solvent extraction and crystallization
    • Integrated batchwise to enable consistent scale-up of pigment lots

    Final product types

    • High-stability organic pigments for plastics and coatings
    • UV-resistant specialty textile dyes
    • Industrial inkjet inks
    • Technical and automotive colorant concentrates
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    More Introduction

    2,7-Dibromo-9-Phenyl-9H-Carbazole: Lighting the Way for Advanced Electronics

    Introducing 2,7-Dibromo-9-Phenyl-9H-Carbazole

    For anyone keeping up with the fast-moving world of organic electronics, 2,7-Dibromo-9-Phenyl-9H-Carbazole feels like an old friend. Lots of research labs and production floors have seen it as a reliable building block for next-gen semiconductors, OLEDs, and advanced photonic devices. Its structural backbone—carbazole with phenyl and carefully positioned bromine atoms—has opened new creative paths for chemists and engineers alike. Instead of blending into the pack, this compound offers genuine promise where precision, stability, and functional group chemistry make a difference.

    What Makes 2,7-Dibromo-9-Phenyl-9H-Carbazole Unique?

    Many organic compounds struggle when it comes to fine-tuning energy levels or charge transport. Here, the strategic bromination at the 2 and 7 positions sets this carbazole apart from basic carbazoles and plain brominated aromatics. The phenyl group at the 9-position does more than simply decorate the molecule; it plays a key role in shifting the photophysical properties. I’ve seen teams spend months tweaking similar molecules, only to find that their charge mobility doesn’t cut it for OLED standards. In this setting, 2,7-Dibromo-9-Phenyl-9H-Carbazole shows its staying power as a bridge between practical synthesis and top-tier performance requirements.

    Why Specifications Matter

    Chemistry at this level demands precision. Consistency matters—a slight shift in purity or a rogue impurity can throw off entire batches of materials. Reliable suppliers of this compound usually deliver white to off-white crystalline powders with chemical purity above 98%. The real challenge arrives during scale-up: academic labs might handle a gram or two, but production teams want kilograms or more, and that jump can expose flaws or inconsistencies. From my lab days, we quickly learned to check for residual solvents, melting point deviations, and unexpected yellowing, which even tiny impurities can trigger. These details might seem small, but every OLED pixel relies on millions of molecules behaving just right.

    Applications: Where the Action Happens

    Much of the recent excitement around 2,7-Dibromo-9-Phenyl-9H-Carbazole comes from its utility in organic optoelectronics. OLED makers love it for its role as a high-triplet-energy host or as a donor in light-emitting materials. The bromine atoms serve as reactive handles for further Suzuki or Stille cross-coupling, opening the door to custom polymers or finely tuned dendrimers. In essence, this compound acts like a versatile Lego piece: easily modified, but already sturdy on its own.

    It’s been put to work in the lab to create blue-light emitters with remarkable lifespan and brightness. For those chasing more efficient solar cells, the ability of this molecule to help manage charge separation and avoid quenching has not gone unnoticed. I remember reviewing project proposals where researchers compared it side-by-side with its non-brominated cousin—results consistently leaned in favor of this molecule, thanks to the extra synthetic options and improved film-forming characteristics.

    The Real-World Impact

    OLED screens used to mean luxury phones and television displays, but prices have dropped as manufacturing processes sharpen and key materials like 2,7-Dibromo-9-Phenyl-9H-Carbazole make large-area fabrication more accessible. This shift goes beyond screens. In wearable devices, automotive displays, and next-gen lighting, longevity and energy savings matter. The role of trackable intermediates like this one means engineers can design, adjust, and scale up devices for years of everyday use.

    In my early career, the dream of plastic electronics felt out of reach—too many promising designs crumbled under the realities of low yield, poor durability, or outlandishly high costs. These days, tools like high-purity carbazoles, tailored to bridge the gap between designer molecules and reliable manufacturing, bring those dreams within reach. It’s a shift that matters to anyone watching the rollout of smart cities or the electrification of transport.

    How It Stacks Up Against Other Products

    Rigorous side-by-side comparisons show why 2,7-Dibromo-9-Phenyl-9H-Carbazole keeps finding its way into research papers and pilot plants. Molecules lacking bromine at the right spots can't match its potential for further modification—chemists need those bromines for rapid, efficient coupling reactions. Regular phenylcarbazole without substitutions might give adequate stability, yet drops behind in solubility, reactivity, and thin-film uniformity. For large-scale inkjet printing or roll-to-roll processing, these differences become bottlenecks or breakthroughs.

    A few years back, we tested a suite of prospective OLED hosts and found most newcomers suffered from poor reproducibility, leaving device yields below 50%. The batch-to-batch consistency of 2,7-Dibromo-9-Phenyl-9H-Carbazole meant fewer headaches and less scrapped wafers. Its crystal structure also promotes more predictable charge separation under electric fields, which translates to longer-lived devices—an advantage that can’t be overstated in products promising 40,000 hours of service.

    Sustainable Sourcing and the Bigger Picture

    Sourcing every chemical responsibly grows in importance by the year. Waste streams from bromination processes once posed headaches for regulatory bodies and health professionals. Advances in green chemistry now let suppliers recycle solvents and neutralize emissions at lower costs, bringing environmental and safety risks back into line.

    From my own experience on a green manufacturing team, I saw regulatory concerns push companies toward transparent supply chains. Tracking and auditing routes for key intermediates like 2,7-Dibromo-9-Phenyl-9H-Carbazole became table stakes, not a luxury. The more stakeholders communicate about traceability, the more this class of material earns its reputation not just as an enabler of innovation, but as part of a responsible production landscape.

    Challenges: Tackling Scale-Up and Cost Pressures

    Commercialization introduces a set of hurdles distinct from benchtop chemistry. Cost remains sensitive: bromine atoms don’t come cheap, and processes must be dialed in to minimize waste. Organic synthesis at the necessary scale demands tight control on reaction conditions—temperature, rate of addition, solvent recycling. Early on, multiple attempts to batch-produce this carbazole failed due to exothermic spikes and purification woes. Careful tweaking, process monitoring, and feedback from seasoned chemists made a difference here.

    Now the biggest obstacles focus on streamlining logistics and predictive quality control. There’s little patience for downtime on modern production lines. Redundant quality checks—NMR, mass spectrometry, HPLC—have become routine for batches destined for critical applications. It’s an area where experience pays off; seasoned professionals know the warning signs and catch impurities before downstream headaches leak into final products. Keeping the cost curve manageable without cutting corners presents a real challenge.

    Potential Solutions and Future Paths

    Lessons learned on the production floor suggest that investing in process optimization bears fruit. Automated synthesis modules, once considered overkill, increasingly prove useful for handling scale-up safely. Optimizing reaction routes can cut turnaround time dramatically—one plant doubled output by automating bromine addition, shaving hours off total cycle time while minimizing operator exposure.

    Analytical advances also show promise. Hydrogen–deuterium exchange techniques help confirm consistency in structure, while real-time monitoring allows for quick corrections. Take it from someone who’s tracked yields with old-school titration: these upgrades take a lot of the guesswork out, catching issues early and saving countless hours of rework.

    Another possibility lies with circular chemistry. Using reclaimed starting materials pulls costs down and demonstrates commitments to sustainability. Some innovators now promote upcycling spent running solvents and even tracing recycled brominated intermediates. These practices don’t just trim budgets—they strengthen long-term relationships with major buyers demanding eco-friendly practice.

    Safety Considerations

    Every large-scale organic synthesis comes with hazards, and compounds like 2,7-Dibromo-9-Phenyl-9H-Carbazole need respect. Careful air handling, spill mitigation, and proper waste disposal add up fast in terms of overhead, but they’re non-negotiable. Safety training and constant review prevent the kinds of incidents that make news for all the wrong reasons.

    Experience has taught me that clear protocols and incident response preparation prevent dangerous slips. Comprehensive documentation matters, not just for compliance, but for ensuring crew members can solve problems on their own without delay. Ensuring safety goes hand in hand with innovation—one supports the other.

    Knowledge and Transparency: Keys to Ongoing Progress

    The field keeps evolving at a rapid clip. Material advances like 2,7-Dibromo-9-Phenyl-9H-Carbazole only go so far without collaborative knowledge sharing. Bringing together research chemists, manufacturing engineers, safety professionals, and independent auditors lifts the entire industry. Keynotes from international conferences spell out what works and what doesn’t, and there’s more openness than ever around best practices.

    As researchers publish detailed studies on charge transport and photoluminescence, purchasing managers and engineers gain a better sense of what works for their specific end uses. Earning trust takes time, but case studies involving this carbazole have shown consistent, reproducible success, adding layers of credibility that newcomers sometimes lack. In my experience, nothing beats direct feedback from the floor—those who run reactors and pilot lines spot trends before any academic paper or white paper does.

    Conclusion: The Future of Advanced Electronics with 2,7-Dibromo-9-Phenyl-9H-Carbazole

    Every year brings new challenges and opportunities in electronics and photonics. The enduring demand for reliable, tunable, and scalable organic materials brings compounds like 2,7-Dibromo-9-Phenyl-9H-Carbazole to the front lines of innovation. From OLED screens that last longer and shine brighter, to sustainable production pathways, to new classes of smart sensors, the applications keep growing.

    Continued success depends on a blend of expertise, transparency, and forward-thinking investment. This material has come a long way from academic curiosity to production staple. Its unique structure, proven performance, and adaptability explain the loyalty it generates among those who work with it day in and day out. As the world moves toward smarter, more sustainable, and more interconnected technologies, innovations like 2,7-Dibromo-9-Phenyl-9H-Carbazole will keep lighting the way.