Anhui Liwei Chemical Co., Limited
Products

Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-


    • Product Name Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-
    • Alias Pterostilbene
    • Einecs 650-016-8
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    278055

    Iupac Name 4-[(E)-2-(3,4,5-Trimethoxyphenyl)ethenyl]phenol
    Molecular Formula C17H18O4
    Molecular Weight 286.32 g/mol
    Cas Number 134596-00-0
    Appearance White to off-white powder
    Melting Point 184-188 °C
    Solubility Slightly soluble in water; soluble in DMSO, ethanol
    Purity Typically >98%
    Structural Formula C6H2(OH)(CH=CHC6H2(OMe)3-3,4,5)

    As an accredited Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical is packaged in a sealed 25-gram amber glass bottle, labeled with hazard warnings and product details, ensuring safe transport.
    Shipping The chemical *Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)ethenyl]-* should be shipped in tightly sealed containers, protected from light, moisture, and physical damage. Use appropriate hazard labeling and follow all local, national, and international regulations for transport. Ensure secondary containment and provide safety documentation with the shipment.
    Storage Store **Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)ethenyl]-** in a tightly sealed container, protected from light, moisture, and incompatible substances. Keep it in a cool, dry, well-ventilated area, away from sources of ignition. Avoid exposure to strong oxidizing agents and acids. Ensure appropriate labeling and access for trained personnel only, with suitable spill containment and fire-fighting measures available.
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    Certification & Compliance
    More Introduction

    Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-: Our Direct Experience with a Specialized Chemical Building Block

    Introduction to a Versatile Phenolic Compound

    In the lab, it’s easy to spot the craftsman’s urge for both simplicity and precision. Phenol, 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]- stands out as a material close to our daily work. We synthesize this compound with consistent attention to purity, targeting a market of researchers and formulators who demand reliability from their reagents—not just a name on a drum.

    Deep within its molecular backbone, this compound features an ethenyl bridge linking a phenol moiety with a trimethoxy-substituted aryl group. Over the years, we have come to recognize that every synthetic tweak can press the product in directions that affect downstream performance. Structure here isn’t an abstract game; each methoxy group, each bond geometry, pushes the molecule toward or away from its chosen applications.

    Our Manufacturing, Our Reality

    We operate synthesis in batch reactors designed for aggressive chemistry. The intermediate stages involve carefully monitored methylation and coupling steps. Our team has learned not to shortcut on the monitoring, especially during the condensation that locks in the (E)-styryl geometry. It’s easy to underestimate how sensitive this transformation remains; we’ve found that inconsistent heat distribution or reagent quality causes major headaches—impurities, color changes, and yield loss.

    Crude product often looks the same at a glance, but analytics tell the real story. We never skimp on HPLC or NMR confirmation—even with years of experience, assumptions are dangerous. Final powder or crystalline product meets a purity threshold that our partners rely on. We know where tolerances can slip, and where they absolutely cannot. We set our bar above 98% for most lots, not to chase premium pricing, but because we hate surprises during application.

    Use Cases Shaped By Design and Chemistry

    Over time, we’ve watched academic groups and industry partners take this molecule into organic electronics, medicinal chemistry, and pigment research. Each channel places specific demands. In OLED prototyping and advanced polymer development, the electron-rich trimethoxyphenyl group has helped achieve useful conductivity and light emission profiles. In the hands of medicinal chemists, the scaffold provides an entry point for bioactive compound screening—think kinase inhibitors and custom ligands. We get inquiries every month from startup teams, often probing about scale-up and reaction compatibility.

    One recurring question from customers involves solubility and stability under various conditions. We’ve run enough tests to know that 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-phenol dissolves reliably in most aromatic solvents and even works in polar aprotic systems. Heat-catalyzed degradation can creep in above 180°C, a fact learned after botched pilot reactions in larger glassware. One reason the research community likes this compound: you can modify either the phenol or the trimethoxyphenyl edge, pushing it toward new targets or applications.

    What Sets This Compound Apart from Similar Materials?

    Whenever we get asked about the differentiators, context helps. There are other phenolic compounds with analogous structures. We have compared them in head-to-head trials. Simple phenol derivatives lack the rich electronic profile delivered by three methoxy groups on the aromatic ring. Saturated or meta-substituted variants might hold in certain reactivity patterns, but the (E)-styryl linkage creates a conjugation path that opens up photophysical properties inaccessible via other scaffolds.

    Unlike off-the-shelf phenols, this compound’s combination of steric and electronic effects produces sharper reactivity in Suzuki couplings and oxidative transformations. In pharmaceutical R&D, chemists sometimes start with simpler aryl vinyls, only to run into solubility or isomerization problems. We’ve watched some groups waste weeks troubleshooting side-product formation. Our version supports a cleaner progression through reaction cascades, which means project timelines don’t balloon unexpectedly.

    There’s also a practical dimension when it comes to batch sizing and reactivity. This molecule doesn’t polymerize or caramelize during storage, provided it’s kept away from moisture and sunlight. Our own warehouse team reports consistent shelf life, so long as basic handling procedures are followed. In our early days of manufacturing, we learned that cutting corners in purification paid dividends at first—but a few ruined downstream syntheses for clients quickly made that approach unsustainable. Over the years, our investments in in-line purification and closed transfers have paid off in minimized recalls and retesting.

    The Details That Shape Performance

    In our experience, both university labs and industry partners ask about downstream compatibility and grade consistency. One group in Korea went through four rounds of pilot production, each relying on our documentation of melting point and spectral data. The partners on that project appreciated our quick turnaround with microanalysis—a result of hands-on analytical work instead of generic third-party outsourcing. It’s a detail that shows in the final application, especially when chemistries move to scale.

    Polymers synthesized using our 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-phenol show sharper molecular weight control, which ties back to our attention at each purification step. Missteps at this level lead to batch-to-batch variation—even the best downstream equipment cannot correct for raw material inconsistencies. Our semi-automated systems log every variable, from solvent lot number to temperature ramp rates, allowing us to tighten specifications as needed. This rigor grows out of experience, not abstraction.

    Some customers think of this material as an offshoot of resorcinol derivatives or simple stilbenes. Experience says otherwise. The (E)-stilbene bridge encourages a more planar structure, a trait valued in liquid crystals and specialty polymers targeting optoelectronic uses. The presence of three methoxy groups makes the aromatic system more electron-rich and shields it against oxidative degradation. Not every laboratory has access to these kinds of materials at demanding purity levels; we think this gives specialty chemicals real clout in the hands of innovators.

    Authenticity in Manufacturing

    From day one, we have stressed that chemical manufacturing is a hands-on business. The best procedures on paper regularly fall apart in the plant. Even now, we run every reactor load through a small library of quality checks—UV-Vis absorbance, HPLC, NMR, and Karl Fischer for moisture. These steps grew out of problems we encountered at scale. We have spent weeks tracing color impurities to unoptimized crystallizations. Even after hundreds of successful runs, we spot check for unexpected isomers. We rely on these basics not as a matter of red tape, but as the bedrock of our business.

    There have been times when market shifts force us to adapt. As prices on methylating agents swing or global demand for certain downstream products spikes, we have to tweak processes to stay competitive. Several years ago, sourcing higher-purity starting methoxybenzenes became hard due to supply chain issues. Rather than substitute lower-grade inputs, we stretched out timelines and coordinated bulk orders with other manufacturers. These choices protect downstream application, ensuring users get what they expect. To us, that’s more important than hitting every order deadline or chasing the cheapest route.

    Environmental and Safety Responsibility

    Nobody in chemical manufacturing can ignore environmental stewardship. We run a closed solvent-recovery system, keeping aromatic and methanol emissions well below current regulatory targets. Our reactor operators take weekly training in spill response, waste segregation, and confined-space entry. In some countries, we’ve seen safety cut short for margin. Here, every new employee shadows a senior chemist through live runs and cleanups, because mistakes in this business aren’t just costly—they put real people in danger.

    We also maintain active communication with environmental agencies whenever new byproducts or reaction solvents enter our process. Several years back, we detected trace levels of a chlorinated impurity in our effluent. Rather than ignore it, we redesigned a purification stage and added in-line monitoring. The cost of change looked steep at first, but the long-term win comes from confidence in clean, traceable operations. Picking up the phone to inform a partner about a minor setback takes humility, but it cements enduring trust and credibility.

    Our Perspective on Application Trends and Future Challenges

    Having watched the market for 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-phenol develop, we see both promise and challenge on the horizon. As makers of this compound, we hear from researchers experimenting with new nonlinear optical materials and advanced pharmaceuticals. The compound’s conjugated core aligns with these trends. At the same time, quality expectations are climbing, especially as analytical techniques become more accessible to end users.

    We see more customers requesting additional provenance data and batch history well beyond traditional material specs. Where others might take this as burden, we view it as an extension of transparency. Digital traceability and live data feeds for each batch are now becoming standard. Some of our clients connect production analytics straight to their QA workflows, allowing them to flag anomalies days ahead of lab results. It pushes us to keep honing our methods, minimizing subjective elements and reducing error margins.

    The move toward greener chemistries has prompted inquiries about biobased routes or cleaner synthesis partners. While classic aromatic methylation and coupling remain our foundation, we have ongoing projects in catalyst selection and process intensification to limit solvent use and waste output. We’ve taken hard looks at both biocatalytic and continuous flow options, some of which have shaved hours off reaction time without quality sacrifices. This isn’t a marketing pitch; we know firsthand that manufacturing has to keep moving or risk fading out.

    Choosing Quality over Speed: Lessons from the Floor

    There have been times where production delays look like a threat. An interrupted batch due to a failed filtration or equipment downtime can feel catastrophic. The pressure to deliver, especially on a tight customer schedule, is immense. Still, we have always chosen to rework or remake batches rather than compromise quality. Our experience tells us that one bad lot can undermine years of goodwill; correcting an issue immediately protects the partnership.

    The biggest lessons emerge in those moments when shortcuts tempt. Years ago, a competitor undercut our pricing by ignoring an essential purification step, flooding the market with yellow-tinged product. At first, recipients saw only cost savings; within months, their own syntheses ran into yield and purity slips. Calls started coming in for troubleshooting advice and replacement material. It became clear that quality—once lost—proves hard to regain. Since then, our rule remains: validate every step, own every setback, communicate honestly.

    Supporting Innovation and Education

    Our relationship with research teams goes beyond transactions on a purchase order. We have regular dialogues with both educators and early-career chemists. Workshops at university labs and direct Q&A sessions with startups help us learn how this compound works at the bench. In the recent past, students ran photoreactivity trials with our phenol derivative, feeding back surprising signs of secondary reactivity. Insights from these ground-level trials inform our internal process, often revealing new directions that product managers or business analysts overlook.

    Some of our team members sit in on peer-review sessions and industry panels, helping to update best practices for phenolic reagents. The value here isn’t just in boosting sales, but in raising the bar for trustworthy manufacturing. By exchanging perspectives with both users and other manufacturers, we have refined our understanding of what separates a good chemical lot from an unpredictable one.

    We’ve seen how even minor shifts—a different reagent supplier, a change from glass to stainless reactors—flow all the way down to application. Students and researchers innovate fastest when materials give clean, reproducible results. In our view, every gram we ship should carry the reliability expected by those at the front lines of discovery.

    Concluding Thoughts from the Manufacturer’s Workbench

    The story of 4-[(E)-2-(3,4,5-Trimethoxyphenyl)Ethenyl]-phenol isn’t abstract to us; it unfolds every day in reactors, on purification columns, and in front of analytical monitors. Lasting quality stems from real-world choices and from a willingness to own the details. Adjustments for raw material runs, environmental performance, and direct customer feedback mark every new batch we create. Each shipment draws on the experience of a team striving to do better than last quarter.

    We have come to appreciate that in specialty chemicals, reputation builds slowly but can evaporate in a moment. Our commitment is not just to furnish product, but to supply confidence: the reliability to push ahead in R&D, the flexibility to tackle ambitious formulation targets, and the honesty to admit where we still have ground to cover. The path forward for this phenolic compound, as for ourselves, runs through transparent operations, rigorous analysis, and open-door communication with the communities using our materials.