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HS Code |
715842 |
| Cas Number | 582-18-1 |
| Molecular Formula | C10H6Br2 |
| Molar Mass | 313.97 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 142-145 °C |
| Boiling Point | 367 °C |
| Density | 1.89 g/cm³ |
| Solubility In Water | Insoluble |
| Refractive Index | 1.674 |
| Flash Point | 180 °C |
| Smiles | Brc1ccc2ccc(Br)cc2c1 |
| Inchi | InChI=1S/C10H6Br2/c11-7-3-1-5-9-6-2-4-8(12)10(7)9/h1-6H |
| Pubchem Cid | 119932 |
| Ec Number | 209-487-2 |
| Logp | 5.11 |
As an accredited 2,7-Dibromonaphthalene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 25g 2,7-Dibromonaphthalene comes in a sealed amber glass bottle, labeled with hazard symbols, product information, and safety instructions. |
| Shipping | 2,7-Dibromonaphthalene is shipped in tightly sealed, chemically resistant containers, typically made of glass or high-density polyethylene. The package is clearly labeled with hazard information and handled as a hazardous material. It is stored and transported in cool, dry conditions, away from incompatible substances, in compliance with regulatory guidelines. |
| Storage | 2,7-Dibromonaphthalene should be stored in a tightly sealed container, away from light, heat, and moisture. Keep it in a cool, dry, well-ventilated area, separate from incompatible substances like strong oxidizers. Properly label the container and avoid exposure to open flames, as the substance may be combustible. Use appropriate protective equipment when handling and storing the chemical. |
Applications of 2,7-Dibromonaphthalene in Industrial ManufacturingAs a specialized manufacturer of 2,7-Dibromonaphthalene, we supply high-purity material tailored for advanced industrial transformations. The downstream use of this chemical centers on sectors requiring controlled halogenation and conjugated aromatic structures for technical performance. Below, we detail the most relevant application scenarios across major chemical and high-tech manufacturing fields, including regulatory environment, real-world production ratios, integration points, and associated end products. 1. Organic Semiconductor Intermediates in Electronics Materials2,7-Dibromonaphthalene serves as a key intermediate in synthesizing functionalized naphthalene derivatives or extended π-conjugated molecules for organic electronics. Its dibromo positioning is critical in facilitating Suzuki or Stille couplings, enabling the build-out of semiconducting frameworks for applications such as organic light emitting diodes (OLEDs), thin-film transistors, and photovoltaic devices. Electronics material producers rely on tightly-controlled specifications with traceable supply chain records. Industry compliance standards
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2. Pharmaceutical Intermediate for Specialty APIsThis compound is employed as a halogenated scaffold for synthesizing advanced pharmaceutical intermediates, particularly those involving multi-step aromatic transformations or targeted halogen exchange. Its brominated positions allow regioselective functionalization, supporting active pharmaceutical ingredient (API) research and scale-up in the oncology and neuroprotection segments. Purity standards and impurity profiles must meet clinical manufacturing needs. Industry compliance standards
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3. Advanced Dye and Pigment SynthesisManufacturers of specialty dyes and pigments use 2,7-Dibromonaphthalene to construct high-performance chromophores with improved stability and custom absorption spectra. The brominated naphthalene acts as a core for subsequent substitution with electron-rich or electron-deficient groups, producing materials for optical filters, complex printing inks, and photoresists. This application demands rigorous control over residual halogen content and color purity. Industry compliance standards
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4. Specialty Polymer Building BlocksProducers of high-value specialty polymers use this dibrominated aromatic as a monomer or co-monomer for step-growth polymerization, allowing the introduction of rigid, planar structures in the polymer backbone. This enhances mechanical and thermal properties, as well as facilitating precisely controlled electronic and optical traits in engineering plastics and membrane materials. Stringent process validation and impurity control remain mandatory throughout polymer scale-up. Industry compliance standards
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5. Reference Standard and Analytical Use in QC LaboratoriesMany analytical laboratories and in-house QC teams use traceable, high-purity 2,7-dibromonaphthalene as a reference material for method validation, instrument calibration, and impurity profiling in naphthalene-derived production lines. Full documentation of purity, isomer content, and stability is necessary for analytical consistency, supporting the development of validated HPLC, GC-MS, and NMR methods that trace residuals or process byproducts in industrial environments. Industry compliance standards
Typical usage ratio
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Some chemicals reach beyond the role of a mere starting material—they build bridges between science and industry, tackle the gaps between demand and value, and fuel decades of innovation across disciplines. 2,7-Dibromonaphthalene does that on a daily basis in our production facility. Its journey begins with naphthalene isolation and selective halogenation, two operations that have shaped our plant process for years. Compared to preparing mono-brominated or random polybrominated naphthalenes, getting a pure 2,7-dibromo derivative presents unique challenges and rewards.
Getting a predictable yield with minimal impurities relies on how batch handling, temperature control, and post-reaction purification are implemented. In our experience, small deviations—be it temperature drifts or subtle changes in agitation—tend to push the process toward unwanted isomers or extra bromination. Not only does this create separation bottlenecks, it adds unnecessary solvent, ultimately driving up energy use in the distillation stages. Quality assurance in this case means constant vigilance on both raw input and operational parameters. Over years of optimization, we have found it’s the attention to seemingly minor variables that determines whether you end up with a sharp melting point and a clean product or spend hours troubleshooting chromatographic tails.
Our 2,7-dibromonaphthalene typically appears as a pale solid with a crystalline structure that passes our in-house purity thresholds using gas chromatography and NMR checks. Consistently, our runs produce narrow melting range material above 80°C. Bromine content analysis is key—a fraction above or below target flags recovery or process error. While regulatory standards define minimum purity, we try to exceed these benchmarks, knowing unreacted naphthalene or off-isomers have consequences downstream, especially for pharmaceutical and electronic applications.
Batch-to-batch reproducibility is critical. Analysts in our lab track bromine loading, water content, and trace heavy metals. Our recordings show that keeping residual solvents below 0.5% offers better material performance, especially for researchers investing in further synthesis. For certain clients, we also screen for aromatic impurities using UV-Vis analysis, knowing some applications show surprising sensitivity to trace contamination.
The main value of 2,7-dibromonaphthalene always returns to its reactivity. Through years of feedback from customers and our own internal R&D, the standout use is as a coupling building block for advanced materials. Suzuki-Miyaura and Stille-type cross-couplings flourish when using this compound, thanks to the positioning of the bromine atoms. Researchers and commercial plants synthesize polycyclic aromatic hydrocarbons, liquid crystal materials, and naphthalene-based polymers—all fields where substituent control can make or break purity and properties.
Our teams have collaborated with electronics companies optimizing organic semiconductor layers. They report that 2,7-dibromonaphthalene delivers cleaner end products with higher charge mobility, compared to less symmetric brominated naphthalenes. In dye synthesis, our product shows fewer side-reactions; this reduces purification load and increases pigment yields. Sourcing this compound directly from a manufacturer—not from a repacker or distributor—lets downstream users gain the benefit of tighter tolerances and a direct pipeline for feedback and process improvement.
Every plant offers its own version of brominated naphthalene. We have sampled and analyzed commercial lots from global players and noticed that minor process distinctions shape the user experience. Material from our reactors tends to show better lot homogeneity over time, especially with respect to small-molecule contaminants and polymerizable side-products. This outcome owes partly to our method of quenching and crystallization, which we’ve refined across hundreds of cycles. The difference plays out tangibly for customers: their reaction color is more consistent; their downstream purifications are simplified, and their yields, including for customized molecular architectures, often come in closer to calculated targets.
Another difference stems from how we monitor trace iron, copper, and palladium—often invisible until they poison a catalyst or trigger undesirable side-reactions in delicate molecules. Our techs track trace metal levels using ICP-MS, and we routinely deliver below 10 ppm, preventing polymer discoloration or electronic defects. We don’t take for granted that a batch passes QC because the paper specification looks right; customers often discover that similar grades from other suppliers create downstream headaches that disappear when they switch to ours.
Shipping and packaging impact how material survives the journey to the lab or factory. We spent years working out a system that reduces contamination and false positives for residual solvents. Our choice of double-sealed, airtight containers, combined with real-time moisture analysis, has cut down on the “clumpy solid” effect that used to frustrate users in humid climates. Direct, transparently packed shipments also eliminate typical warehouse cross-contamination, giving buyers the true output of a chemical plant, not a mystery blend of possibly mismatched origins.
Lots of buyers mistakenly think of this product as a mere raw material, no different from feedstock naphthalene or generic fine chemicals. Real production proves otherwise. If a single lot includes too much 1,5-dibromonaphthalene byproduct, the customer’s coupling chemistry can stall or give impure outcomes. On a larger scale, one contaminated container can upend weeks of production, leading to wasted time and unplanned downtime. We have learned, after years stepping into customer troubleshooting workshops, how 2,7-dibromonaphthalene’s profile changes everything from crystal engineering to spectral analysis.
The true value comes from how we blend bulk scale with attention to detail. For a dye manufacturer looking for batch-to-batch color consistency, our preparations cut down on rework and testing costs by arriving ready to deploy. In academic labs pushing the limits of molecular electronics, we field questions about the tiniest NMR signals or GC-MS fragments, sometimes consulting on synthetic routes to optimize conditions around our core product’s quirks. Years observing client outcomes convinced us: who makes the material, how it’s handled, and what checks are in place shape project timelines and even patent outcomes in subtle, bottom-line ways.
Chemical manufacturing today can’t just focus on what comes out the end of the pipeline. Environmental and personnel safety frame everything we do. Over the last decade, we’ve redesigned our halogenation and crystallization lines to reduce byproducts and minimize organic emissions. This move resulted not just from regulatory shifts but from repeated operator insight that the older systems wasted energy and raw materials. Implementing closed recovery loops for both reagents and solvents now leaves our facility with lower hazard rankings and has translated to measurable energy and water savings.
Responsible production supports business resilience. After a well-publicized industry incident, we took extra steps in personnel training. Today, every operator and supervisor in our process area knows the specifics of bromine handling and naphthalene dust mitigation. This translates to safer working environments, fewer stoppages, and less risk of downtime—gains our customers rarely see but benefit from every time they order. In-house monitoring does not just meet external audits, it helps maintain a standard we set ourselves, rooted in years striving for both product and process excellence.
Global logistics add stress to the journey from plant to user, especially when handling specialty chemicals sensitive to both time and temperature. We have watched how breakdowns happen. Several years ago, a major delay at a transit hub put one of our shipments in limbo during summer heat, and the effect on the product’s appearance taught us more than any classroom warning ever could. We responded by refining our packaging and committing to temperature-controlled freight options for critical routes.
Our scheduling team updates shipment tracking with the same attention they offer to in-plant quality checks. This culture of feedback means we regularly debrief on delivery timelines and damaged materials, linking operational improvements directly to the chemistry itself. We act on insights from global R&D teams, prioritizing uninterrupted supply even when upstream bromine or naphthalene prices fluctuate. Sharing weekly status reports with large clients, our team catches issues early, building trust in an industry sometimes known for opacity and slow communication.
No chemical plant gets better in a vacuum. Relationships with customers give rise to improvements we might never innovate from lab theory alone. Years of technical calls and shared troubleshooting have changed our batch records and sometimes even our equipment design. One routine issue—unexpected thermal decomposition in a client’s autoclave—turned out to be linked to trace solvent presence from our own purification steps. By switching a process condition and adding real-time GC analysis, we solved the issue for every subsequent run.
We find that customers ranging from university labs to heavily automated multinationals share one desire: predictability. They want to rely on each container behaving as promised, so their teams can focus on making discoveries or hitting production targets instead of wrestling with out-of-spec batches. We answer questions about solubility, compatibility with palladium catalysts, and storage tips, drawing on hundreds of production cycles and test runs. Over time, we have assembled detailed troubleshooting and best-practices guidance, much of it written in response to exact questions and problems in the field.
Markets for brominated naphthalenes change as technology advances. In the past, dyes and pigments drove most demand, but growth increasingly comes from organic semiconductors, OLEDs, and flexible display research. Our pilot plant engineers constantly adapt their approach to match these shifts. We tailor particle size or moisture content to specific customer use cases based on what reliably enhances coupling yields or electronic performance. We publish updates to our specifications every year to highlight real-world performance trends, not just backward-looking purity numbers.
We have invested in lab automation and in-house analytics so we can react faster to customer needs and regulatory developments. Our philosophy is that end-user innovation, in fields like polymer synthesis or solar energy, will only work if every building block they use is trusted—down to the level of bromine atom placement and contaminant avoidance. We constantly review literature and consult with science teams worldwide, keeping up to date with both established and emerging applications. Our willingness to adapt, update standards, and disclose non-confidential production details has led to partnerships with institutions and companies developing products a decade ahead of market entry.
From years on the shop floor and in customer QA meetings, we have seen that buying direct from a manufacturer brings advantages beyond cost savings. Transparency matters. When a university researcher picks up the phone to discuss an anomalous peak in their NMR or a stuck-flask scenario, only the actual producer can walk through every stage of the material’s lifecycle and suggest fixes that work. Our role is not just delivering molecules but supporting research timelines and commercial processes that depend on tight tolerances and reproducibility.
Long-term relationships drive mutual understanding. Over the last decade, several of our early buyers have grown from startup labs to global formulators. Their staff now rely on our in-process control logs as much as our shipping labels, urging us to keep enhancing process reliability and documentation. Our trust-based model, rooted in regular feedback calls and sample exchange, flows directly from the firsthand lessons of troubleshooting hundreds of plant runs.
From synthesis and purification to packaging and support, our perspective stays grounded: perfection comes not from luck or minimum compliance, but from commitment. Complex issues—unexpected reactivity, logistics hurdles, end-user customization—benefit from the frontline experience of those who actually run the reactors, not faceless intermediaries. For everyone at our plant, reliability, openness, and pride in the work mean more than just meeting written specifications. Our approach to manufacturing 2,7-dibromonaphthalene reflects that mindset.