|
HS Code |
363829 |
| Iupac Name | benzo[b]furan-5-ol |
| Molecular Formula | C8H6O2 |
| Molar Mass | 134.13 g/mol |
| Cas Number | 487-41-2 |
| Appearance | white to off-white solid |
| Melting Point | 119-121°C |
| Solubility In Water | Slightly soluble |
| Pubchem Cid | 73039 |
As an accredited 5-benzofuranol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Purity 99%: 5-benzofuranol with purity 99% is used in pharmaceutical intermediate synthesis, where it ensures high yield and reduced impurity levels. Melting point 115°C: 5-benzofuranol with a melting point of 115°C is used in organic chemistry research, where it facilitates precise thermal process control. Molecular weight 134.13 g/mol: 5-benzofuranol with a molecular weight of 134.13 g/mol is used in custom reagent preparation, where it enables accurate stoichiometric calculations. Particle size <20 µm: 5-benzofuranol with particle size less than 20 µm is used in fine chemical formulation, where it promotes homogeneous dispersion in mixtures. UV stability up to 300 nm: 5-benzofuranol with UV stability up to 300 nm is used in photochemical studies, where it maintains structural integrity under exposure. Water solubility 0.5 g/L: 5-benzofuranol with water solubility of 0.5 g/L is used in aqueous system testing, where it provides reliable dissolution for consistent assay results. Thermal stability up to 180°C: 5-benzofuranol with thermal stability up to 180°C is used in high-temperature process development, where it resists degradation during synthesis reactions. Purity HPLC 98%: 5-benzofuranol with HPLC purity of 98% is used in analytical reference material preparation, where it delivers reproducible calibration standards. |
| Packing | The 5-benzofuranol is packaged in a sealed 25g amber glass bottle with tamper-evident cap and chemical-resistant labeling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for 5-benzofuranol involves securing, labeling, and stowing drums or bags safely within a standard 20-foot container. |
| Shipping | **5-Benzofuranol** should be shipped in tightly sealed containers, protected from light and moisture. It should be transported as a chemical substance according to local and international regulations. Appropriate hazard labeling and documentation must accompany the shipment. Personal protective equipment (PPE) is recommended when handling packaging and during transit to ensure safety. |
| Storage | 5-Benzofuranol should be stored in a tightly sealed container, away from light, heat, and sources of ignition. Keep it in a cool, dry, and well-ventilated area, separate from incompatible substances such as strong oxidizing agents. Label the container clearly and ensure it is stored at room temperature. Follow all relevant safety guidelines and local chemical storage regulations. |
| Shelf Life | 5-Benzofuranol typically has a shelf life of 2–3 years if stored tightly sealed, away from light, moisture, and heat. |
Competitive 5-benzofuranol prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
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We have been manufacturing 5-benzofuranol in our own reactors, controlling every step from raw material selection to finishing. Over years on the shop floor, our teams have seen what makes a benzofuranol product reliable and what causes setbacks in downstream processes. Between process optimization and listening to what end-users in pharmaceutical R&D, agrochemical screening, and advanced materials development actually require, we have learned that consistency and transparency matter more than marketing hype or catalog jargon.
Our 5-benzofuranol (CAS 487-41-2) leaves our plant as a white to off-white crystalline solid, handled in temperature-controlled rooms, with batch records kept for every shipment. This compound features a benzofuran skeleton with the hydroxyl group at the 5-position, which sets it apart from the more commonly encountered oxygenated benzenes or simple phenols. Chemists working at the bench recognize this scaffold for its ability to be further functionalized, leveraging the aromaticity and the furan ring for target molecule synthesis. Material from us falls within stringent purity ranges confirmed by both HPLC and ^1H NMR traceable to standards, with water content typically below 0.2%, and minimal color bodies left from upstream synthesis.
Laboratories working on new small molecules for therapeutic or crop protection purposes have come to us grumbling about sluggish reactions or “unknowns” in their spectra when trying to scale up. Most of those issues arise from not tracking minor side-products or inconsistent drying during manufacturing. By keeping our process entirely in-house, we can adapt purification conditions as requirements change. We find that regular feedback from organic chemists, rather than only what sales channels relay, lets us improve both throughput and the actual chemical quality they report when working up reactions.
Many vendors simply relabel 5-benzofuranol, source it from less scrupulous producers, or handle it in environments prone to cross-contamination. In our own in-lab testing, shipping sample bottles picked at random from other commercial sources often revealed notable solvent residues, higher levels of colored tails, or batch-to-batch spectral differences. Our direct process control ensures repeatability. This comes from not only final QC tests, but by controlling glassware cleaning, solvent recovery, batch drying, and packaging under a continuously reviewed protocol. Every 10 kg scale-up receives GC and NMR evaluation, which means fewer surprise impurities down the chain.
Some competitors’ product exhibits off-odors or a beige coloration, especially after warehouse storage. We take stability seriously, storing all bulk lots in sealed, inert conditions, with inventory cycling to ensure customers never see the impact of shelf-aging, which can cause slow hydrolysis or oxidation, particularly in more humid regions. The technical team analyzes both fresh and aged product for potential degradation, incorporating these observations into production guidelines.
In the hands of medicinal chemists and process chemists alike, 5-benzofuranol acts as a vital scaffold. Its active phenolic group, combined with the reactivity of the furan ring, opens up numerous synthetic transformations – etherification, acylation, halogenation, and various C-H activations. Fluorination studies, for example, benefit from starting material with no hidden moisture or interfering by-products. We have received direct reports from customers noting fewer chromatographic problems and cleaner product bands when using our material, especially for reactions performed on multigram scale. That saves both labor hours and consumables.
Chemical manufacturers in advanced materials utilize 5-benzofuranol for polymer research, leveraging its unique electron-rich core. The coupling reactions sometimes run at elevated temperatures, which amplifies any residual impurities from sourcing the starting benzofuran or over-oxidation products. Ensuring control at each production step reduces melted or deformed polymer batches, which leads to less material wasted and more predictable results.
We do not rely on generic, pre-printed “specification sheets.” Our documents trace every batch to analytical spectra, and we regularly update our protocols when methods, reference standards, or instrumentation improve. Current lots typically meet or exceed the following: purity by HPLC ≥99.0%, single spot by TLC in standard solvent systems, and melting point reproducible within ±2°C of reference literature values. End-users tell us this helps avoid reaction repeat failures and reduces time spent on extensive in-house verification. Color and clarity are functions of careful crystallization and gentle drying under reduced pressure, not superficial post-treatment aimed at masking underlying problems.
Every kilogram ships in airtight, chemical-resistant containers. We know from seeing the results in real-world labs: oxygen infiltration during shipment triggers faint color changes and reduces shelf life, complicating analytical work especially in spectrophotometric assays where background signals muddy results. This is why all packing takes place in one isolation building with regular air quality audits. Sample retention vials from each lot undergo accelerated aging to monitor color and purity drift, backing up our shelf-life estimates with actual data.
Subtle choices in raw materials, catalysts, and solvents leave fingerprints on 5-benzofuranol, even when the material looks clean to the naked eye. Some suppliers cut corners during extraction and purification, relying on a “good enough” approach because the compound’s main chromophore tends to hide most trace organics. Working from elemental starting materials all the way to packing, we screen every intermediate, rejecting off-color or high-ash sub-batches, and we follow up with end-point sulfur and phosphorus analysis. We can adjust production schedules and techniques when requested for specific research programs or scale-up plans, because we are not bound to contract manufacturing timelines or quotas.
Occasionally, customers ask why our cost is less volatile compared to quasi-wholesalers. By running our own distillation, extraction, and fine purification steps, and by sourcing raw materials in bulk at predictable prices, our supply chain remains predictable even during market fluctuations. Factory staff undergo routine chemical handling training and participate in annual safety audits – measures that have prevented plant downtime and batch losses.
Some inquiries we field relate to market confusion between 5-benzofuranol and other benzofuran derivatives, for instance, 2-benzofuranol or more substituted phenolic furans. We avoid overextending into every possible analog unless we control the synthesis or purification in-house, which shields researchers from surprise batches or inconsistent data.
Feedback often points to problems with unexpected melting point depression, slow dissolution, and irreproducible NMR peaks when using unvetted sources. Such discrepancies can ruin lengthy reaction sequences or lead to wasted research budgets. Starting from high-purity, single-lot 5-benzofuranol, these issues rarely occur. During times of raw material shortages, some market players supply partial batches from multiple sources to fill orders; we refuse mixed-lot shipments. Our guarantee stands behind single-lot traceability, supported by chain-of-custody records from plant to customer.
Occasionally, especially with order backlogs worldwide, customers face bottlenecks due to delayed delivery or last-minute substitutions. By controlling manufacturing, warehousing, and distribution schedules ourselves, with real-time tracking of inventory and production capacity, we manage customer expectations honestly. If technical questions or the need for tailored quantities arise, users can talk directly to our plant chemists or analytical team, not brokerage intermediaries. That difference is especially obvious during troubleshooting or product qualification, where quick access to actual process data saves everyone time.
We remain vigilant about both regulatory compliance and rising industry standards for impurity profiling. Each lot of 5-benzofuranol includes an accompanying detailed analytical report, not a mass-printed batch sheet. Heavy metal screens employ up-to-date ICP-MS techniques as part of our routine monitoring, and we cross-check for common by-products identified in published process chemistry literature. R&D customers, especially those working toward clinical candidate molecules or regulated biocides, often ask for supplemental analysis – these can be provided, since the control is on our own doorstep.
On the environmental front, spent solvents and aqueous wastes from the benzofuranol process pass through multi-step recovery or treatment modules. Rather than defaulting to incineration or landfill, we recover and purify solvents to technical grade for reuse, and process organics in a sealed thermal treatment plant. As a result, regulatory audits over the past years have shown zero major findings. That helps our operation remain scalable without relying on environmentally harmful shortcuts that create risk for downstream users.
We work closely with research labs to understand the bottlenecks in receiving and working up orders of 5-benzofuranol. Sometimes it’s disposal of trace by-products, sometimes it’s packaging that leads to static, powder loss, or product sticking to the sides of flasks. We have experimented with different vessel types, and now fill most orders in shatter-resistant, antistatic bottles, purged with dry inert gas. Some users call us directly for advice on re-drying or storage after extended periods; based on our own stress-testing, we recommend desiccation at room temperature, away from direct sunlight, with periodic quality checks if keeping stocks more than six months.
Working on the manufacturer’s side gives us a clear picture of the actual, not theoretical, shelf life and handling requirements. Years spent overseeing the same compound through its cycle – from initial recrystallization to kilo-scale blending and distribution – gives us the lived experience that textbook descriptions skip. We commit to sharing that practical knowledge, not simply repeating what is already available in standard literature.
No glossy brochure matches feedback from researchers reporting cleaner spectra, reduced side-reaction rates, and improved batch-to-batch reproducibility after switching suppliers. Emails and calls from synthetic chemists or materials engineers describing successful syntheses or new applications serve as more accurate markers of material quality than random vendor certifications. One polymer lab scaled a reaction involving 5-benzofuranol from 50 grams to several kilos without reporting the diminished performance that usually crops up at larger volumes from commodity-grade sources.
We frequently receive shared spectra, chromatograms, and even photographs from customers documenting clear crystalline product or successful novel molecule synthesis, all rooted in having a solid starting material. This hands-on feedback loop cuts through the noise and influences each improvement we bring to our own plant. When projects evolve, and researchers experiment with new reaction conditions, we adapt our specifications accordingly — not because a market niche demands it, but because end users describe their real-world needs.
Over years at the production site, repeated exposure to customer pain points drives ongoing adjustments to our synthetic route, purification train, and packaging. For example, a run of excessive micro-particles in early batches prompted installation of additional micron filtration, followed by validation against light scattering and dust tests in downstream reactions. Process changes typically follow from customer problem-solving, rather than waiting for official complaints or warranty requests. If there’s a trend toward specific applications — such as recent increased interest from photovoltaic research or bioactive screening — we test and fine-tune parameters suited to those uses, without diluting quality for other users.
We invest in small, controlled pilot runs before major process shifts. This reduces transition risk and keeps changes evidence-driven. Field reports reveal that labs scaling up new reactions worry about supply continuity or minor shifts in impurity profile more than price or volume. Understanding this first hand, we provide sample portions for pre-purchase trial, giving research groups the confidence needed for critical work.
Having produced, packed, and personally handled 5-benzofuranol for years, we see both the challenges and the reasons researchers keep coming back to a direct source rather than trading platforms. Close process control, transparent analytical records, clear communication with users, and the willingness to adapt as science advances, all stem from making the product ourselves. These aren’t brochure bullet points – they’re day-to-day realities providing real value to those who design the molecules and materials that move the frontiers of science forward.