|
HS Code |
428770 |
| Iupac Name | 3-[(E)-2-(4-hydroxyphenyl)ethenyl]-5-methoxyphenol |
| Molecular Formula | C15H14O3 |
| Molecular Weight | 242.27 g/mol |
| Appearance | White to off-white powder |
| Melting Point | 255-257 °C |
| Solubility | Slightly soluble in water, soluble in ethanol and DMSO |
| Cas Number | 501-36-0 |
| Pubchem Cid | 445154 |
| Smiles | COC1=CC(=CC(=C1)O)/C=C/C2=CC=C(C=C2)O |
| Boiling Point | 476.7 °C at 760 mmHg |
| Pka | 9.8 (phenolic OH) |
| Logp | 3.08 |
As an accredited 3-[(E)-2-(4-Hydroxyphenyl)Ethenyl]-5-Methoxyphenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The chemical is packaged in an amber glass bottle containing 25 grams, labeled with its name, formula, and hazard information. |
| Shipping | Shipping of **3-[(E)-2-(4-Hydroxyphenyl)ethenyl]-5-methoxyphenol** requires secure, airtight packaging to prevent contamination or degradation. The chemical should be transported in compliance with local and international regulations, ensuring a cool, dry environment and clear labeling. Proper documentation and safety data sheets must accompany the shipment for safe handling and delivery. |
| Storage | Store 3-[(E)-2-(4-Hydroxyphenyl)ethenyl]-5-methoxyphenol in a cool, dry, and well-ventilated area away from direct sunlight and incompatible substances like strong oxidizers. Keep the container tightly closed and clearly labeled. Avoid exposure to heat, moisture, and sources of ignition. Use appropriate personal protective equipment when handling, and follow all local regulations for chemical storage. |
Competitive 3-[(E)-2-(4-Hydroxyphenyl)Ethenyl]-5-Methoxyphenol prices that fit your budget—flexible terms and customized quotes for every order.
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Every batch of 3-[(E)-2-(4-Hydroxyphenyl)ethenyl]-5-methoxyphenol that leaves our factory reflects years of continuous technical refinement and hands-on experience with phenolic derivatives. In the lab, our chemists know this compound by its IUPAC name, but many in the specialty chemicals field also recognize it by its connection to the stilbene group. Drawing on phenolic antioxidative chemistry, this molecule stands apart from common monophenolic compounds thanks to its dual aromatic rings and the strategic placement of functional groups.
On paper, this molecule integrates a hydroxyphenyl group with an ethenyl linker at the third position, plus a methoxy substitution at position five. The structure matters. In practice, we’ve watched small changes to the backbone shift how the molecule behaves in real-world processes—especially when comparing to simpler phenols or less elaborated stilbene derivatives. That extra methoxy group, added by careful methylation, brings a degree of solubility in organic media often absent from unsubstituted relatives. The hydroxyphenyl ethenyl connection imbues the molecule with distinct electron-donating properties, which open doors to unique applications in antioxidant and photochemical fields.
From the start, we handled the synthesis with an eye on both purity and batch consistency. In our experience, off-the-shelf material doesn’t cut it for demanding applications. So our standard production delivers purity over 99 percent by HPLC, with no suspected isomer contamination. Appearance usually falls into a pale, slightly off-white powder—fluorescent under UV due to the stilbene core. Moisture can be a concern due to the hydroxy group, so we maintain water content below 0.5 percent, measured by Karl Fischer titration for every lot before packaging.
Particle size is controlled by custom milling, targeting a range between 40 and 80 mesh. As a manufacturer, we noticed that the way the material disperses hinges on these physical specs, far more than a catalog data sheet might suggest. Melting point consistently checks in around 203–205°C, giving us a reliable metric for batch-to-batch verification. Stability at ambient temperature is robust, although prolonged light exposure in open containers can cause superficial discoloration—a quirk of phenolic chromophores we address with UV-blocking packaging. Every drum comes nitrogen-purged, sealing in quality straight from the reactor.
On our production line, the real value of this compound emerges through its adaptability in antioxidant formulations and specialty polymers. The conjugated double bonds and dual phenolic groups offer a unique blend of free radical scavenging. Customers in the polymer industry mention improvements in processing stability, particularly during extrusion, when they introduce our powder at designed loadings. In coatings, formulators like the synergy potential this chemical brings when blended with hindered phenolic antioxidants.
We’ve worked side by side with R&D chemists from pigment and dye producers who report that our product doubles as a light stabilizer in certain photoactive systems, outperforming plain hydroquinones based on comparative photo-oxidation testing. The presence of both hydroxy and methoxy substituents allows for a sweet spot: high reactivity in scavenging peroxyl radicals, but enough stability to avoid premature breakdown in reactive mixtures.
Beyond polymers and coatings, cosmetic formulators see appeal in the antioxidant profile—especially for UV-exposed skincare preparations. Our technical team walked through solubilization challenges with customers designing natural-inspired sunscreens, and we’ve shown how pre-dissolving the solid in DMSO or certain glycols can sidestep classical formulation blockages tied to bulkier phenols.
After spending years in the chemical plants, we’ve come to recognize how a few atoms can change performance. Take plain resorcinol or hydroquinone: both display solid redox behavior, but they oxidize cleanly—sometimes too quickly for demanding polymer stabilization. Substituted stilbenes bring much broader stability under heat and UV, but the 5-methoxy group in our product adds a hydrophobic tail, favoring dispersal into less polar systems. In side-by-side trials we’ve conducted, the result is longer lifespans for stabilized plastics or resins under weathering.
We don’t compromise on lot consistency, a pain point regularly heard from technical buyers accustomed to batchy supplies from traders or resellers. By managing all critical process steps in-house—from oxidative coupling through final recrystallization—we ensure every shipment leaves our site with minimized phenolic impurities, confirmed by in-house NMR, HPLC, and wet chemistry.
Most generic phenolics miss this level of dual function. Our product’s extra ring and unsaturation mean it participates in photochemical reactions where monophenols would rapidly degrade. A few customers in pharmaceutical research highlighted how the unique backbone can serve as a scaffold for further substitution, acting as a lead compound in selective synthetic pathways—a trickier feat with commodity phenols or oversimplified stilbenoids. Our team responds to requests for custom packing and particle sizing to better fit these lab-scale or pilot projects.
Day in, day out, users want to know what sets one manufacturer’s chemical apart from others. For us, the answer isn’t branded packaging or stock certificates—it’s technical support and customizable production. We field direct calls from lab heads ready to custom-tailor additive blends, and our upstream control means changes to particle size, purification method, or drying can be made—to spec—for niche requirements.
We’ve partnered with formulators in adhesives, electronic resins, and specialty elastomers, where the electron-rich core of this compound enhances performance without introducing overactive sites that lead to rapid yellowing or breakdown. The methoxy side chain delivers a surprising boost in compatibility when customers test in silicone or high-molecular-weight polyurethane matrices—where less modified phenols simply precipitate or crystallize.
Our technical service team collects feedback from end users, capturing first-hand data on solubility, reactivity, and stability once the product enters a new system. Armed with this, we continue to guide batch improvements. It’s one thing to point to published literature; it’s a different thing entirely to walk through a failed extrusion run or separation issue with a customer, helping optimize every variable from moisture control to preblend ratios.
The push for innovation doesn’t stop at the end of the chemical reactor. Customers seek tighter controls—smaller particle size for enhanced dissolution in high-speed mixing, or ultra-low residual solvents for trace-sensitive applications. Based on on-site discussions, we’ve created specialty grades featuring additional recrystallization or advanced drying cycles, reducing solvent residues below 10 ppm. For research use, we’ve delivered kilogram-scale lots dried under vacuum and packed in amber glass for added light protection, recognizing the needs of pilot syntheses or initial patent filings.
The flexibility lets us address project-specific needs without customers waiting on faraway intermediaries. Direct manufacturing enables nuanced control over each physical and chemical property, which, in practical terms, leads to fewer headaches at the end-use stage. Electronic manufacturers, for example, avoided conductive artifact issues by switching to our controlled low-sodium version, developed after several rounds of plant-scale feedback. It’s this end-to-end transparency that keeps us returning to the lab bench, fine-tuning everything from catalyst selection to ambient drying conditions as new challenges emerge.
No production process runs perfectly every time. Over the years, we’ve wrestled with scale-up artifacts, like incomplete methylation or unwanted isomer formation, after transferring a reaction from glassware to kiloliter vessels. Solving these hurdles has pushed us to rethink agitation speed, solvent composition, and real-time monitoring. By tightening control points, we’ve kept off-spec material off our shipping dock and eliminated the frustration of out-of-tolerance impurity profiles for our regular customers.
Moisture also persists as a nuisance for every phenolic manufacturer still dealing with humidity fluctuations. Our answer was to move post-reaction drying inline, followed by immediate nitrogen packing, ensuring the product heads straight for storage or shipment before atmospheric water can sneak back in. Stability in warehouse conditions remains strong thanks to multilayer packaging and small batch runs, which limit open-air exposure.
Even after delivery, we support customers through technical documentation and hands-on talks, sharing lessons gained from fielding complaints about failed dissolutions or unexpected specking in resins. From pre-shipment sample testing with customer matrices to follow-up after the first production trial, we treat each challenge as a reflection of our process controls and a chance to raise our own quality standards.
In a specialty market driven by constant change, manufacturers who listen to their partners progress faster. Modern regulations ask for lower impurity baseline, safer handling, and tighter documentation. We have adapted our analytics and process logs to meet rising scrutiny, a move that required new investments but pays off in trust and loyalty across our customer base.
We see shifting customer goals every quarter, whether it’s demands for reduced migration potential in food-contact plastics or easier integration into reactive resin blends. At our factory, a mix of bench-scale flexibility and full production capacity allows us to update existing grades or propose new variants in weeks, not months. Recent joint ventures have led us to pilot small-lot, high-purity runs aimed at electronic chemical markets, underscoring our commitment to responding directly to industry signals.
Some customers seek green chemistry answers. Thanks to our vertical integration, sourcing phenolic starting materials and methylation agents with verified origin is feasible, so development of eco-labeled versions gets fast-tracked. We’re also exploring solvent minimization in the main synthetic step, working with local partners on solvent swap programs to further reduce lifecycle emissions connected to each kilogram produced.
For us, the job isn’t done with a signed invoice. Sustained supply—batch after batch—matters more than fancy branding. Our process control people, plant engineers, and analytical chemists work under one roof, translating technical needs into actionable improvements. Enterprise customers, whether in fine chemicals, polymer additives, or cosmetics, count on candor when discussing obstacles as well as successes.
Our experience shows that 3-[(E)-2-(4-hydroxyphenyl)ethenyl]-5-methoxyphenol stands apart in the crowded field of phenolic compounds. The dual phenolic core and methoxy group aren’t just structural quirks; they change how our chemical interacts with light, heat, and free radicals—key factors for forward-thinking product developers. By collaborating closely with downstream users and refining every aspect of synthesis and post-processing, we help lead advancements rather than chase them.
Solid direct communication—between manufacturer and chemist, between plant and process—is what lets us meet rising performance demands and regulatory expectations. Every kilogram represents not just chemistry, but the craftsmanship and transparency we believe belong at the center of responsible manufacturing.
