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HS Code |
973511 |
| Chemical Name | 1,4-Dibromo-2,5-Dimethoxybenzene |
| Cas Number | 6640-24-0 |
| Molecular Formula | C8H8Br2O2 |
| Molecular Weight | 311.96 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 165-168 °C |
| Density | 2.15 g/cm3 (estimated) |
| Solubility In Water | Insoluble |
| Structure | Benzene ring with bromine atoms at 1 and 4 positions, methoxy groups at 2 and 5 |
| Smiles | COC1=CC(=CC(=C1Br)OC)Br |
| Synonyms | 2,5-Dimethoxy-p-dibromobenzene |
| Ec Number | 229-341-1 |
| Pubchem Cid | 13651 |
As an accredited 1,4-Dibromo-2,5-Dimethoxybenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle labeled "1,4-Dibromo-2,5-Dimethoxybenzene, 25g," featuring hazard symbols and tightly sealed with a screw cap. |
| Shipping | **Shipping Description:** 1,4-Dibromo-2,5-dimethoxybenzene is shipped in tightly sealed containers, protected from light, heat, and moisture. Shipping must comply with local and international regulations for hazardous materials. The material should be labeled as a chemical substance and handled with care to avoid spillage or exposure during transit. |
| Storage | 1,4-Dibromo-2,5-Dimethoxybenzene should be stored in a tightly sealed container, protected from light and moisture, in a cool, dry, and well-ventilated area. Keep away from sources of ignition, strong oxidizers, and incompatible chemicals. Label containers clearly and store in accordance with relevant chemical safety regulations to ensure proper handling and minimize risks of contamination or accidental exposure. |
Applications of 1,4-Dibromo-2,5-Dimethoxybenzene in Industrial ManufacturingWe deliver 1,4-Dibromo-2,5-Dimethoxybenzene as an advanced intermediate for specialized production environments. Our experience covers integration into demanding fine chemical and materials synthesis workflows, where precise specification and regulatory compliance are critical. The following industrial application scenarios reflect verified, real-world downstream uses supported by regulatory frameworks and commercial manufacturing practices. 1. Pharmaceutical Intermediate in Active Pharmaceutical Ingredient (API) SynthesisThis compound serves as a functionalized aryl source in multiple pharmaceutical API syntheses, especially for creating substituted benzene derivatives used in CNS and oncology research. Process development teams typically use the material in halogen exchange, methoxylation, or Suzuki-Miyaura cross-coupling steps, directly incorporating the molecule into complex pharmaceutical core structures. Stringent documentation and traceability throughout chain-of-custody are critical, and lot qualification must meet applicable pharmacopeial standards for each project. Industry compliance standards
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2. Intermediate for Liquid Crystal Monomer SynthesisHigh-purity grades of this compound facilitate the selective bromination steps required for LC monomer manufacturing, often via Grignard or Stille coupling reactions. Quality control for residual halogens and trace metals is essential, as these parameters strongly influence optical and electrochemical performance in end-use devices. Production cycles maintain strict batch-to-batch consistency and thorough documentation supporting audits by electronics clients or certification agencies. Industry compliance standards
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3. Key Raw Material in Organic Semiconductor Material DevelopmentThis compound is widely employed in the preparation of conjugated polymer and low-molecular organic semiconductor precursors for device fabrication. Synthesizing electron-rich or electron-deficient aryl units requires controlled introduction of bromine functionality and methoxy protection. The chemical enters the workflow during Suzuki, Stille, or Negishi coupling processes, contributing selectivity and processability to OLED, OPV, and OTFT active materials for the electronics sector. Industry compliance standards
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4. Specialty Dye and Pigment Intermediate1,4-Dibromo-2,5-Dimethoxybenzene serves as a halogenated aromatic core in the synthesis of organic colorants, especially for high-purity dyes or pigments used in plastics and coatings. It forms the central scaffold for further functionalization steps such as azo coupling or condensation with amines, with bromine positioning directly affecting hue and fastness. Low-metal and low-halogen impurity grades ensure compliance with pigment regulations for toys, consumer goods, and food packaging inks. Industry compliance standards
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5. Building Block for Research Chemicals and Analytical StandardsMany research labs and analytical reference suppliers use this compound as a scaffold for custom synthesis of labeled standards or probe molecules, especially where specific bromination and methoxylation patterns are required. Rigorous trace impurity documentation and isotopic analysis are necessary for supply to analytical labs, where lot reproducibility and synthetic fidelity directly affect downstream assay results. Industry compliance standards
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In our day-to-day operations as a manufacturer, we spend a lot of time refining the quality and consistency of specialty aromatic compounds. 1,4-Dibromo-2,5-dimethoxybenzene stands out among these compounds for both its unique molecular structure and the reliability it offers in downstream chemical transformations. Experience in synthesizing and scaling similar halogenated and methoxylated aromatics shows that each change in substitution on a benzene ring brings new challenges in both batch stability and process efficiency. For this compound, the bromine positioning at the 1 and 4 locations combined with methoxy groups at 2 and 5 creates a clean symmetry, which is especially valuable during certain cross-coupling or substitution reactions.
Chemists working with structurally similar compounds recognize the importance of precision in each substitution. The ortho and para substitutions impact reactivity, and over the years, it has become clear that this pattern offers stronger performance in Suzuki and Stille coupling reactions. By delivering a product with tightly controlled purity and specified melting point, the synthesis runs more predictably. This hands-on focus on process control means researchers achieve higher yields and fewer byproducts. In my own work days on the plant floor, the difference between a lot with 98 percent purity and one that dips to 95 percent often means hours spent troubleshooting downstream. With the 1,4-dibromo-2,5-dimethoxybenzene process, experience has refined reaction conditions and equipment—glass-lined reactors and temperature automation help reduce product variability.
Actual users of this compound come from a diverse range of backgrounds. Whether a team is working on specialty polymers or pharmaceutical intermediates, precise information regarding batch specifications becomes invaluable. 1,4-Dibromo-2,5-dimethoxybenzene, synthesized for research and advanced production, often ships in crystalline form, and consistency in both particle size and moisture content really makes or breaks efficient production runs. Seasoned chemists know the lingering issues that can arise from poorly characterized aromatic compounds—clumping, static buildup, and inconsistent dissolution rates. In our shop, tight process management from raw material sourcing, through bromination and etherification, keeps product within spec on melting point and appearance. The final result: researchers can handle, measure, and dissolve this compound smoothly at their own bench.
Comparisons to other aromatic bromides and methoxybenzenes show up regularly in the lab. For instance, 1,4-dibromobenzene and 2,5-dimethoxyaniline each hold their own niches, but few substitutes offer this precise electronic profile for use in fine-tuning reactivity. Colleagues in the field verify that the dual methoxy and bromine substituents on opposite sides of the ring fine-tune both electron-donating and -withdrawing effects, supporting cleaner and more selective catalyst interactions. We test every batch with NMR and HPLC—practices that weren’t always standard thirty years ago. These data-heavy steps stem from direct experience dealing with off-spec lots in the past. Modern researchers and production chemists expect certificates of analysis and regulatory documentation; we’ve built that capability not just to satisfy audits, but to make sure we don’t see unexpected downtime ourselves.
Down on the production line, the ultimate test for any aromatic intermediate comes in its reliability in end-use reactions. This compound sees repeated demand in synthetic projects involving cross-coupling chemistry. During a Suzuki or Stille process, the two bromine atoms allow for selective and stepwise modification. The methoxy groups influence regioselectivity, providing more predictable outcomes than less-substituted brominated benzenes. For chemists scaling benchtop work to pilot or commercial scale, the choice of intermediate matters, and inconsistent or poorly characterized material jeopardizes costly cycles of scale-up.
In feedback from partners, one recurrent lesson stands out—the small differences in impurity profile, either from overbromination or incorrect methoxy substitution, can snowball, especially when a compound’s end use involves pharmaceutical actives or advanced electronics. Our own QA team pulled data from over fifty lots this past year, comparing melting point ranges, residual solvents, and byproduct levels. Tighter control on these fronts gives downstream users a better experience, not just in yield, but also in purification and waste handling. Having walked into several customer sites myself, I’ve seen just how much delays and lost time follow when unexpected impurities show up midway in a multi-step sequence.
Specific advantages come with our mode of catalytic bromination and subsequent methylation. Consistent process temperature and bromine reagent addition—practices we refined not out of theoretical wish but hard-won troubleshooting—lead to less variability. We learned early on, after a few too many calls from frustrated synthesis teams, that the typical issues aren’t just about the main product yield. They emerge as lingering color, unexpected off-odors, or difficult filtration. Continual investment in analytical equipment and process automation means new users rarely face these headaches.
Put side by side with similar compounds—say, 1,4-dibromo-2,5-dimethylbenzene or 1,4-dibromobenzene—the properties of 1,4-dibromo-2,5-dimethoxybenzene reflect both its methoxy functionality and precise substitution. The presence of oxygen-bearing methoxy groups introduces polar characteristics, giving the compound distinct solubility not seen with its dimethyl or unsubstituted analogues. The implications go beyond how easily it dissolved in the flask: users working in organic synthesis find greater compatibility with certain solvents, especially polar aprotic types.
Earlier in my career, sourcing high-purity brominated aromatics meant facing constant trade-offs. Many products lacked strict batch control, and the difference would be obvious even on visual inspection: uneven granulation, unexpected dusting, and, worst of all, the subtle, hard-to-detect off-products that could derail a downstream reaction. Over time, customer feedback steered us toward lots of extra steps—crystallization, vacuum drying, and modern chromatography validation—to ensure a product that doesn’t surprise the user. This insight springs less from external pressure than from hard lessons with reprocessing, recalls, and hours troubleshooting avoidable errors.
In benzene ring chemistry, the precise locations and types of functional groups control not only reactivity but the types of products users can develop. The methoxy-phased structure of this compound changes electron density across the ring. Direct competitors—especially chlorinated or nitro-substituted products—cannot offer the same profile of reactivity or downstream tunability. My colleagues in the plant tell similar stories: new technicians pick up quickly that just swapping a dimethoxy with a dimethyl, or a dibromo with a dichloro, leads to a world of difference on the next process. Damage to reactors, hard-to-manage residue, and diminished yields all surface from those seemingly minor structural shifts.
The market for fine chemicals has changed in the last two decades. Customers don’t just want a product specification; they look for consistency, responsiveness, and clear communication. Our experience manufacturing 1,4-dibromo-2,5-dimethoxybenzene reflects that shift. Overhauling quality systems, moving from basic melting point checks to multi-stage impurity profiling, and building traceability throughout supply chains came not from marketing demands, but out of repeated cycles of technical support, root cause analysis, and customer engagement.
Purchasing departments can evaluate price, but end-user chemists judge a compound by how reliably it works at every step. In our own work, we’ve watched pilot batches succeed and fail based on a single batch of intermediate. Years ago, inconsistency arose from variables that go unnoticed: air humidity during crystallization, filtration rates, or even drum lining materials. Through daily monitoring, new process instrumentation, and closer attention to both raw materials and finished goods, we steadily reduced out-of-spec rejections from over 10 percent to less than 2 percent. That change means fewer headaches for our customers and less waste for us.
Chemists and engineers in the field often call with questions, not about paperwork but about real-world performance. Will the product dissolve in acetonitrile as easily as last time? Does it come out clean on a TLC plate with the common eluent? If a project transitions from gram scale to multi-kilogram, can that same quality carry through? Having made a range of aromatic chemicals over my own years in manufacturing, these are the practical challenges that stick in your mind. Customers benefit from our process refinements—including upgrades to closed-system packaging and on-site stability testing—not because these steps are required, but because insufficient measures led to pain points in the past.
Much of the chemistry accomplished today would have seemed out of reach not long ago. Collaborative projects between materials scientists, pharmaceutical chemists, and emerging battery technology groups now draw on precisely tailored aromatic intermediates. 1,4-dibromo-2,5-dimethoxybenzene plays a role in these efforts. Its clear value comes from both functional versatility and its track record within new classes of conductive polymers and advanced pharmaceutical intermediates.
We’ve worked side by side with both multinational firms and research startups, supplying this compound for applications ranging from OLED materials to selective intermediate syntheses for new therapeutic candidates. Not every product gets this kind of reach, and it’s only possible when suppliers and users engage in honest, detail-driven conversations. Sharing stability studies, supporting scale-up with custom batch sizing, and reacting swiftly to feedback have made for more robust collaborations and fewer late-night troubleshooting sessions. As regulations continue to evolve, we prioritize transparency and documentation, staying prepared for scrutiny while remembering that real trust comes through meaningful technical support.
As environmental standards increase, chemical manufacturers bear greater responsibility than ever before. Experience tells us that unimpeachable documentation and sustainable practice build the foundation for reputation and longevity. We continue to refine waste minimization strategies, solvent recycling, and multi-step batch tracking not simply to comply, but to avoid repeats of the slowdowns or non-compliances witnessed in the past. For our 1,4-dibromo-2,5-dimethoxybenzene production, carefully controlled reaction stoichiometry and energy management reduce excess reagent use, shrink our carbon footprint, and mean that downstream users face fewer hurdles when it comes time for regulatory filings themselves.
We have been audited by both domestic and international authorities, and those processes have only increased our focus on stepwise documentation, from incoming raw materials to outgoing shipments. For users in regulated industries—especially pharmaceuticals and advanced electronics—we provide comprehensive analytical records and retain samples for after-sale support. The collective institutional knowledge from plant chemists and compliance staff guards against the issues that used to blindside manufacturers: missing batch records, incomplete impurity data, or gaps in chain of custody.
Day-to-day engagement with specialty aromatic compounds teaches lessons the lab can’t always predict. We have learned that anticipating user needs isn’t about theoretical best practices, but about direct, honest feedback and a willingness to reinvest in equipment, people, and process changes. The power of 1,4-dibromo-2,5-dimethoxybenzene in modern research and manufacturing comes from both its structure and the hard-won know-how that surrounds its production. Our approach has always prioritized clear communication with end users, preemptive technical support, and rapid response to any issues. Every new project drives further refinement, and every feedback loop ensures future batches keep pace with scientific demand and real-world performance.
For those considering 1,4-dibromo-2,5-dimethoxybenzene for new syntheses or established protocols, my experience suggests thorough dialogue with the manufacturer pays off. Getting the right intermediate means understanding not just the high-level model and specifications, but also the countless hours spent making sure every lot supports the unpredictable, fast-evolving world of chemical discovery and production. We draw on thousands of production hours, decades of problem-solving, and customer insight to produce a compound that delivers, day in and day out, across a changing industry landscape.