5-Bromo Benzofuran

    • Product Name: 5-Bromo Benzofuran
    • Chemical Name (IUPAC): 5-bromobenzo[b]furan
    • CAS No.: 10075-50-0
    • Chemical Formula: C8H5BrO
    • Form/Physical State: Solid
    • Factroy Site: No. 2, Guangze Avenue, Economic Development Zone, Qianjiang City, Hubei Province
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Qianjiang Yongan Pharmaceutical Co., Ltd.
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    Specifications

    HS Code

    901989

    Cas Number 3132-99-8
    Molecular Formula C8H5BrO
    Molecular Weight 197.03 g/mol
    Iupac Name 5-Bromobenzofuran
    Appearance Light yellow to brown solid
    Melting Point 57-60°C
    Boiling Point 273°C
    Density 1.654 g/cm³
    Solubility Slightly soluble in water, soluble in organic solvents
    Smiles Brc1ccc2occc2c1
    Inchi InChI=1S/C8H5BrO/c9-6-2-1-3-8-7(6)4-5-10-8/h1-5H
    Refractive Index 1.693

    As an accredited 5-Bromo Benzofuran factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Application of 5-Bromo Benzofuran

    Purity 98%: 5-Bromo Benzofuran with 98% purity is used in pharmaceutical intermediate synthesis, where it ensures high reaction yield and product consistency.

    Melting Point 56°C: 5-Bromo Benzofuran with a melting point of 56°C is used in organic compound crystallization, where it facilitates precise separation and purification.

    Molecular Weight 197.03 g/mol: 5-Bromo Benzofuran at a molecular weight of 197.03 g/mol is used in medicinal chemistry research, where it supports accurate dosage formulation and molecular design.

    Stability Temperature up to 120°C: 5-Bromo Benzofuran with stability up to 120°C is used in high-temperature coupling reactions, where it maintains chemical integrity during synthesis.

    Particle Size <50 μm: 5-Bromo Benzofuran with particle size under 50 μm is used in catalyst preparation, where it promotes uniform dispersion and enhanced catalytic activity.

    Assay ≥99%: 5-Bromo Benzofuran with assay of 99% or higher is used in analytical chemistry studies, where it delivers reproducible and reliable analytical data.

    Light Sensitivity: 5-Bromo Benzofuran with characterized light sensitivity is used in photoactive material development, where it enables responsive material tuning.

    Storage Stability 24 Months: 5-Bromo Benzofuran with 24-month storage stability is used in chemical stock maintenance, where it supports long-term inventory management without degradation.

    Packing & Storage
    Packing The 5-Bromo Benzofuran is supplied in a 25g amber glass bottle with a tamper-evident cap and clear hazard labeling.
    Container Loading (20′ FCL) 5-Bromo Benzofuran is loaded in a 20′ FCL using secure, sealed HDPE drums to ensure safe international chemical transport.
    Shipping 5-Bromo Benzofuran is shipped in tightly sealed, chemical-resistant containers to prevent contamination and moisture ingress. It is transported in compliance with relevant chemical safety regulations, including labeling and documentation. The package is cushioned and secured to prevent breakage or leakage during handling, ensuring safe delivery to laboratories or industrial facilities.
    Storage 5-Bromo Benzofuran should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers. It should be kept in a tightly sealed container, clearly labeled, and placed in a chemical storage cabinet suitable for organic compounds. Follow standard laboratory safety protocols and local regulations when storing this chemical.
    Shelf Life 5-Bromo Benzofuran typically has a shelf life of 2-3 years if stored in a cool, dry, and dark place.
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    More Introduction

    5-Bromo Benzofuran: Experience from the Manufacturing Floor

    Product Introduction

    5-Bromo benzofuran stands out from the usual range of chemical intermediates. In our production lines, we watch this compound take form in a real, practical sense—each batch requiring us to respect both the subtleties in its chemistry and the expectations from downstream users. What sets this product apart stretches further than a simple bromination reaction or the aromatic ring at its core; it’s the outcome of process choices, years of plant engineering, and listening closely to where the market moves. From my own hands-on work synthesizing aromatic bromides, I have learned to recognize where a molecule’s true value grows—reliable quality, clean reactivity, and clear differentiation.

    Model and Specifications – Direct from Source

    Within our plant, the specific benchmark for 5-bromo benzofuran touches on purity and consistency above all. For researchers and process engineers, a 98% assay by GC opens doors, but we push each cycle to exceed this mark wherever possible. Leftover color bodies and trace organic byproducts from earlier syntheses don’t just get ignored; we build our distillation setup and washing process to keep them out. Each drum we ship carries the direct results of these adjustments. By investing in better column handling and solvent recovery, we make sure the residual solvents land far below accepted thresholds—so users in pharmaceutical or electronic material fields don’t fight with downstream contamination.

    Clients ask about melting or boiling points, but over the years, experience shows those are just starting points. What matters more is batch stability. Temperature control during bromination keeps the end product from darkening prematurely, so it stays manageable in both bench-top and production settings. Stored in airtight, opaque containers, the solid keeps its original color, and we do not see degradation over time. This practical care outperforms random lots in the market, some of which might turn yellow or develop off-odors within weeks.

    Usage and Importance – From Synthesis to End Product

    5-bromo benzofuran rarely stays as it is. Most of our production heads to pharmaceutical research, where it acts as a stepping stone to more complex targets, often as a building block for kinase inhibitors or antifungal candidates. The world of heterocyclic chemistry sees value in a nontrivial benzofuran core that’s already functionalized. Chemists running Suzuki coupling or similar cross-coupling reactions save significant steps by starting from our compound. This bypasses not only labor but also the uncertainty in obtaining a clean product elsewhere.

    Process and medicinal chemists look for both reactivity and predictability. The bromo group on the furan ring gives a balanced reactivity profile—sufficiently activated for most coupling catalysts but not so reactive that it causes runaway side reactions. We notice some labs struggling with raw materials acquired from smaller importers, facing byproduct issues or inseparable impurities. By controlling the reaction stoichiometry, and making regular in-process checks, we keep our product’s impurity profile well-defined, ensuring fewer problems during scale-up or process transfer.

    Innovation in the dye and material fields also turns to 5-bromo benzofuran. In thin-film applications or as a precursor to light-emitting materials, unreliable purity introduces a real risk—tiny defect points in an organic layer can destroy device yields. With careful attention to solvent handling and air-free techniques, our batches eliminate the main sources of unwanted inclusions.

    Learning from Practice: What Makes This 5-Bromo Benzofuran Different?

    Decades on the production floor taught us that not all aromatic bromides behave the same, even when they hold the same CAS number. For 5-bromo benzofuran, we committed to refining the process long after initial scale-up and regulatory registrations, tackling issues that surfaced only in repeated use.

    We field questions from R&D teams about trace metal content or micro-level halide contaminants. Because we trace our raw materials to known suppliers and monitor halogen content throughout each batch, the end users see fewer surprises. In more than one case, our consistency prevented failed reactions for contract manufacturers running strict qualification protocols—those who would otherwise spend weeks tracing a single source of black specks in their end product.

    Some competitors offer a variation with a shifting impurity profile, especially in lots synthesized at miniplant scale. Our investment in high-throughput analytical equipment—GC, NMR, and mass spec—not only flags issues at early stages, it gives us a clear advantage in repeatable performance. It was not always this way; the learning curve included trial runs that exposed troublesome side-reactions or handling quirks. We learned to wind down reaction temperature gradients, improve batch filtration, and use direct feedback from repeat customers to drive modification.

    There are trade-offs to be made in manufacturing. Pushing for low cost solvents, or aiming for bare minimum purification, leads to problems in yield or operability later. Our experience shows the value in spending that extra cycle in wash steps or fractionating the product to a narrow cut. Often, clients return with feedback that echoes our internal lab tests—a minor refinement on our side saves hours on theirs.

    Real-World Comparison with Other Benzofuran Bromides

    Plenty of halogenated benzofurans crowd the catalog pages of bulk chemical vendors. As a manufacturer, we closely compare both performance and reliability. The 5-bromo derivative in particular offers a balanced position on the core—affecting both electron distribution and the site selectivity in further transformations. Isomers like 2-bromo or 7-bromo benzofuran sometimes show unpredictable reactions, especially in the presence of strong metal catalysts. We noticed, through both in-house experiments and feedback from scale-up labs, that alternative isomers react with a tendency to by-product formation—tracing back to minor ring instability or activation site confusion.

    Manufacturing both 2- and 5-bromo derivatives in-house gave us sharp insight. In side-by-side usage, the 5-bromo version proved less prone to polymeric side products and easier to purify post-coupling. This subtle performance benefit can only be documented by running reactions over and over, adjusting for intake material, ambient humidity, and process speed. No datasheet properly reflects the hours lost in thin-layer chromatography or chromatography column clogging due to an overlooked contaminant present in inferior grades.

    Compared to other halogenated aromatics, 5-bromo benzofuran’s melting profile makes it simpler to store and weigh under standard ambient conditions. Colleagues working with iodinated versions mention material loss from volatility or solvent drag; we observe less waste and more stable tracking throughout our internal handling. These are practical advantages, not abstract ones.

    Some producers, especially distributors sourcing from small-scale Asian plants, ship bulk product with uncontrolled particle size or moisture content. Clumps, dust, or caking lead to poor handling, lost time, and doubts about the product’s integrity. By keeping our own blending and drying steps under tight control, we instead ship a uniformly manageable solid with clear identification, meaning customers depend on predictable dosing in their reactors.

    Handling and Storage Experience

    Chemical compounds with this degree of functional activity need careful handling not just for safety, but for downstream success. Internal protocols here go far beyond generic storage recommendations. Each drum passes a final check for container sealing—metal contamination or peroxide buildup is not just a theory, it’s a solved problem from early days when product batches arrived with faint odors or inconsistent coloration. Experience shows that strictly limiting exposure to moisture and light keeps the product shelf-stable for many seasons.

    Feedback loops with customers made us prioritize not only airtight packaging but also lot traceability. Many end-users found past problems with unidentified batch mixing or undetected contamination after transferring drums between sites. Our own investment in digital tracking—linking synthesis records to shipped containers—block these headaches. With every lot, users reference clear, tamper-evident labels and an internal code that matches directly to a processing history. These efforts grew from years spent responding to real issues: a simple change to see-through packaging, for instance, led to more rapid removal from problematic storage environments when drifting humidity was detected.

    Environmental and Regulatory Experience

    The journey to produce reliable 5-bromo benzofuran placed us directly in front of stricter environmental audits and regulatory updates. Handling brominated aromatics brought a level of scrutiny not all smaller facilities want to face. As a result, our operations maintain records and response protocols that stand up to inspections—in-process monitoring for halogen waste, solvent recovery rates documented, regular staff safety briefings. This approach evolved directly from government expectation and third-party audits; no shortcut can replace this diligence.

    In several product launches, customers expected comprehensive compliance documentation. Because our production lines never rely on third-party synthesis, we produce the required safety and environmental papers in-house, without waiting on foreign language translations or delayed vendor correspondence. The user experience is direct—access to primary-quality documentation, proof of compliance with current chemical management systems, and timely updates responding to regulation changes. Over years of engagement with pharmaceutical and electronics customers, rapid communication of regulatory status builds trust in both the product and its source.

    Supply Chain Reliability—Lessons from Direct Manufacturing

    Uninterrupted supply matters just as much as chemical purity, especially where a synthesis campaign or process qualification hinges on a single intermediate. Trade partners and contract manufacturers who rely on distant, inconsistent channels risk sudden outages. We learned the hard way—in times of restricted global freight or shifting customs policies—that controlling every production step from raw input to final drum makes the real difference.

    By maintaining long-term relationships with vetted raw material suppliers and operating a unified, on-site synthesis plant, our shipments continue even when global events disrupt indirect supply chains. During the recent global transportation slowdowns, customers reflected on the contrast between easy, direct communication with us and the frustration of unanswered queries with distant import channels. This reliability grows from our own structure: both chemical engineers and logistics staff work within the same operational team, translating technical requirements into practical delivery timelines.

    Customer Partnership: Addressing and Solving Real Problems

    Many stories come back through our technical support—from troubleshooting stubborn reaction outcomes, to adjusting shipment formats that fit specialized storage demands. Our teams walk through process optimization alongside client chemists, sometimes reworking handoff guides or adjusting particle specifications in response to observed filtration problems. Once, during a transfer of benzofuran intermediates to a large-scale API facility, unexpected batch-to-batch color differences flagged a solvent impurity not captured by standard testing. Collaborative root cause analysis, with samples traveling both ways, resolved not just that isolated event but redefined our QA checkpoints going forward.

    This continuous feedback loop matters more than any brochure—repeat usage by experienced process chemists highlights secondary issues rarely flagged by distributors. Handling peculiarities, batch absorption rates, or slight differences in chromophore behavior under scaled photoreactions—all of these details matter. Our working history shows that direct conversations, open lab notebooks, and transparent process modification accomplish more than semi-annual spec sheet updates.

    Continuous Improvement: Beyond Basic Compliance

    Running a production floor for advanced intermediates rarely rewards complacency. After each campaign, our teams revisit both output and yield: tracing minor losses, tuning agitation rates, refining drying cycles. Subtle changes ripple through the final product; a ten-degree shift in bromination conditions during winter months once led to new trace impurity, forcing us to experiment with jacketed reactors instead of open systems. These corrections arise from lived experience, not guesswork.

    Having direct oversight lets us pursue consistent improvement without waiting for outside approval. Where some competitors ship copies of the same product with variable impurity profiles, our continuous analytical review spots and addresses drift at micro-levels. Training sessions, shared among the floor and the analytics group, unite theory and hands-on experience—each operator understands the end-use value, not just their station’s share of the process.

    We also route client suggestions straight into our internal review. If a pharmaceutical partner finds improved handling with smaller, more flowable lots, we pilot adjustments rather than promising vague “customization.” Once, an electronics customer flagged issues caused by excess static charge; we quickly adapted packing material to neutralize this problem. Our goal is tangible benefit to the user, not adherence to abstract industry trends.

    Looking Ahead: Why 5-Bromo Benzofuran Still Matters

    Though chemical trends shift, the demand for versatile, high-purity building blocks remains constant. Each season brings new challenges—differing synthetic protocols, regulatory shifts, or unpredictable demand surges. Our story as a direct manufacturer of 5-bromo benzofuran reflects unwavering attention to these changing needs—leveraging real production knowledge, learning from every shipment, responding to user problems, and steadily investing in both process control and customer communication.

    The accumulated experience, from synthesis to delivery, continues to shape what reliable production means. Downstream users rely on not simply receiving a chemical, but on the guarantee that it arrives with consistent quality, practical handling, and a responsive, knowledgeable partner on the other end. This direct approach sets 5-bromo benzofuran from our plant apart, and shapes every decision we make.