|
HS Code |
950938 |
| Iupac Name | 4-[(E)-2-(3,5-dimethoxyphenyl)ethenyl]-2-methoxyphenol |
| Molecular Formula | C17H18O4 |
| Molecular Weight | 286.32 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 137-139°C |
| Solubility | Soluble in organic solvents such as DMSO and ethanol |
| Cas Number | 521-18-6 |
| Smiles | COC1=CC(=CC(=C1)O)C=C(C2=CC(OC)=CC(OC)=C2) |
| Pubchem Cid | 92244 |
| Synonyms | 3'-Hydroxy-4',5'-dimethoxy-trans-stilbene |
| Logp | 3.2 (estimated) |
As an accredited 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 5 grams, sealed with a tamper-evident cap; labeled with chemical name, CAS number, and hazard warnings. |
| Shipping | This chemical, 4-[(E)-2-(3,5-Dimethoxyphenyl)ethenyl]-2-methoxy-phenol, is shipped in secure, leak-proof, and chemically compatible containers. Packaging complies with relevant regulations for safe transport. Safety data sheets are included. The shipment is tracked and handled by trained personnel to ensure product integrity and environmental and user safety throughout delivery. |
| Storage | Store 4-[(E)-2-(3,5-Dimethoxyphenyl)ethenyl]-2-methoxy-phenol in a cool, dry, well-ventilated area away from direct sunlight and moisture. Keep container tightly closed and clearly labeled. Avoid contact with oxidizing agents and strong acids. Use appropriate personal protective equipment when handling. Store under inert atmosphere if sensitive to air or moisture. Keep away from sources of ignition and incompatible materials. |
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Every batch of 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol that rolls off our line tells a story that stretches from the chemical reactor to a customer’s drawing board. This isn’t just another molecular assembly to us. Over the years, we have learned how the smallest change in raw material quality, process temperature, or purification step can ripple out to affect the entire downstream application. So when asked what sets our product apart, the answer doesn't come from a datasheet — it comes through the experience of countless cycles of refinement in synthesis, hands-on quality validation, and attention to the way our partners use these specialty aromatics.
Our plant chemists keep eyes on every reaction stage. Each kilogram of 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol owes its consistency not just to process design, but to the people who spend the early shift watching for color shifts or unexpected residue in the reaction vessel. We see the importance of trace impurity profiles, not because a supplier told us, but because we have stood over a flask on a tight timeline to meet a delivery, only to face rework caused by minute deviations.
Some years back, we worked with a customer exploring synthetic routes for new organic photoactive materials. They needed single-digit ppm consistency in starting materials and that exposed us to the unforgiving relationship between batch purity and the stability of final device performance. Through direct troubleshooting with R&D teams, we learned that simplification of the chromatography system could cut turnaround time without compromising the threshold values in methoxy substitution and stilbene linkage. This is why we don’t just recite substitution patterns; we monitor how these patterns drive the next steps in synthesis.
It’s easy for someone to look at 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol and see another stilbene core with extended conjugation and electron-donating groups. On paper, it resembles several analogs already in circulation. But the way substitution points on the phenyl rings interact with the ethenyl bridge gives this molecule quite different reactivity and physical properties. In our lab, shifting the placement of methoxy groups even one position has altered spectral profiles and solubility so significantly that entire purification protocols needed revision.
A decade ago, a shift in global feedstock supply required us to revalidate our entire synthesis route from scratch. It taught us how feedstock supplier transparency helps keep the final trace metal content within expectations, even before the solvent phase begins. That lesson stuck. Our plant teams bring these results directly to the table, not because of regulation demands, but because our technical partners expect transparent troubleshooting and traceability. This is a responsibility that comes from direct ownership, not from distributing someone else’s inventory.
Our synthesis of 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol didn’t start flawless. We spent whole seasons refining the way to manage water content during Heck coupling, and learned how batch heating rates could influence both geometry and purity. Floating particles in a late-stage precipitation tank nearly derailed an early production run; it required adjusting both the antisolvent composition and the addition rate, while keeping process throughput up.
Testing parameters like color, specific absorbance, and melting consistency aren’t treated as paperwork exercises here. Each time we ran into a batch where trans/cis isomer content drifted past specs, we had to trace it back to shifts in catalyst timing or batch scale-up variables. Sometimes a small change, such as a new drum of DMF from a different supplier, could set off an investigation and lead to hours of extra tightening in the material approvals process. This hands-on learning is what gave us the confidence to support innovation in downstream manufacturing.
We never ignore the purification phase. Vacuum distillation, chromatography, and crystallization — we test each route on real process lines, knowing time and safety are at stake. A few years back, we piloted a centrifugal partition chromatography system to recover higher purity without heavy organic solvent load. That project ended up reducing our overall environmental footprint more than any external audit demanded, and increased throughput by a solid margin.
We started making 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol because our partners in advanced materials pushed traditional flavor and fragrance chemistry into new territory. But since then, we’ve witnessed its reach broaden into sectors we never originally planned for. Our team has supported groups building light-driven switches, investigating charge transport layers, and searching for more stable phenolic antioxidants for polymer stabilization.
In specialty polymers and resins, customers have tested our product as a building block that influences both color fastness and oxidation resistance — an experience that followed after a conversation with a client fed up with color drift in their conventional stabilizers. As an intermediate, the molecule’s dual methoxy substitution offers increased electron density, while its stilbene backbone opens up extended conjugation, making it attractive as a precursor in OLED research and other photoactive materials. We spend days on the phone with chemists from energy storage labs, feeding back what our analytical team finds so that the bench protocols in research settings match up with what we deliver at the reactor scale.
In the field of pharmaceutical development, we see the urge to build new scaffolds based on phenolic stilbenes, hoping for unique bioactivity bouquets. Hurdles arise here — every time someone investigates a new stereochemistry or polymer linkage, trace process byproducts can spell the difference between a promising lead and a batch of disappointment. We have been in meetings where painstaking batch records and LC-MS data corroborated, or sometimes challenged, the integrity of the synthesis. This is where we listen and adjust. Whether it’s visible color quality, solubility, or byproduct minimization, practical lab insight always flows back into our plant routines.
Mass-market materials often gloss over trace side reactions, multiple isomer forms, or the smell of a secondary peak on a chromatogram. We have had chemists from new firms show up, frustrated by the behavioral inconsistency when buying from a shelf stockist — and we trace these issues down to things like the trace presence of isomeric impurities, or the subtle differences in melting behavior caused by process shortcuts.
One example involved a batch provided to a photonics outfit, where early deliveries met spec but subtle photoluminescence shifts started showing up in devices. A deep-dive revealed that the unconstrained batch process elsewhere introduced enough ortho-methoxy substitution contamination to throw the material’s performance off in a demanding UV stability protocol. Our multi-tiered purification and ongoing in-process analytics didn’t just correct this — it has become a routine part of our production, rooted in knowledge gained from solving a real-world problem.
We don’t view 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol as interchangeable with other stilbene derivatives. Differences in substitution pattern, electronic properties, and even trace profile matter. Subtle changes often bring marked differences in chromatic behavior, thermal stability, solubility, and overall synthetic yield downstream. For example, swapping meta-methoxy groups to para changes reactivity toward polymerization or coupling. These insights come not from abstract theory, but from years resolving bottlenecks after side-by-side analyses of batches from various sources.
Academic purists may talk only in terms of purity percentage, but here, we think about real-world indicators: color under visible and UV light, HPLC trace cleanliness, ability to dissolve in experimental solvent systems, and the time a batch takes to reach purification endpoint. Some long-term partners use our product as a benchmark for their own synthesis validation — and we get calls to troubleshoot if there’s ever a shift in performance.
Molecular purity, usually measured above 99%, means nothing without strict control of geometric isomerism and a focus on batch-to-batch reproducibility. Our in-process analytics don’t just sit in logbooks; we refer to retention times, mass fragment analyses, and impurity fingerprints from every campaign. It has taken us years to achieve reliable control at large scale. This only became possible through direct investment in long-term partnerships with reagent suppliers, frequent solvent pre-testing, and open lines of communication from factory floor to application lab.
We believe close communication bridges the gap between bulk manufacturing and research. A few years ago, a research team needed a modified batch with a specific impurity profile suppressed below a single-digit ppm threshold. Getting there meant months spent jointly reviewing analytics, swapping notes on equipment biases, and running joint stability tests. This is the kind of engagement not every manufacturer is willing to support — it demands real-time responsiveness, flexible scheduling, and willingness to tweak process parameters and documentation for the sake of application success.
From time to time, we visit partner labs to demo new production lots, sometimes responding directly to feedback from the glassware bench or the pilot line. We treat these collaborations as the linchpin of our progress, with mutual learning as the foundation. It’s not about selling a batch and moving on; it’s about tracking how every subtle tweak in the reaction or purification phase shows up once our product becomes a part of someone else’s innovation.
The pursuit of operational integrity comes from the realities of mistakes, near-misses, fixes, and small triumphs. We recall one lot where a tiny drop in yield was traced back to an overlooked transformer calibration on our filtration line — something detected only because our batch-to-batch analytics stood up to practical scrutiny. This kind of learning stays with us, embedding itself in routine checks, team training, and process upgrades for every run that follows.
Whenever we hear customers faced downtime because of unpredictable feedstock, inconsistent batch purity, or shifting sampling profiles, our own experiences echo. These calls serve as reminders that foundation-level, direct manufacturing knows no shortcuts. Our technical teams document every batch — from raw material identity to final container sealing — knowing real auditing demands ground-level transparency.
Emerging industries in advanced materials and specialty chemistry look for more than just molecules; they look for reliability and predictability at a technical level. The pressure is on for materials that not only meet function but enable next steps at research and pilot scale. We take pride in having played a supportive role as partners push into new energy, optics, pharmaceuticals, and specialty polymer research. For us, it’s never just about shipping standard product, as process flexibility is part of the job.
There are times we’re asked to push boundaries — a custom particle size here, a specific isomer ratio there — and each time, it’s worth the extra process tuning and rounds of joint analysis. What’s more, our willingness to share data on byproduct elimination, pilot process output, or shelf-stability projections allows partners to make better long-term decisions. For projects under permanent deadline pressure, this means having confidence that the material’s performance won’t surprise them.
We recognize the gaps that often emerge when production scale-up collides with research innovation. In practice, the move from bench-top synthesis to consistent multi-kilogram output needs iterative problem-solving. Our laboratory doesn’t hesitate to halt a batch or run extra analytics when even a faint hint of a spectral outlier emerges. These steps sometimes stall schedules, but the reward lies in uninterrupted partner operations downstream.
To address scaling inconsistencies and supply risks, we invested in duplicating critical equipment, qualifying backup raw suppliers, and building direct communication channels to avoid last-minute surprises. Our customers see the benefit as a supply security net that stands up under unexpected demand surges or regulatory changes.
We track every minor deviation so we can offer realistic solutions — whether that means supplying an extra report for a regulatory submission or rapidly adjusting a purification step to avoid process bottlenecks. These solutions aren’t just technical in nature; they reflect an understanding of how our operation shapes, and is shaped by, the wider chemical application ecosystem.
Years in manufacturing have shown us that every batch of 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol carries the attention, decisions, and curiosity of real chemists and plant operators. Their pride in a clean baseline HPLC trace, or frustration at an unexpected TLC streak, leave visible marks in our records. It keeps the process personal, and that personal accountability doubles as the strongest form of quality assurance.
You won’t find anonymous bulk runs here. We see real names in lab notebooks, notes about small victories, and honest reflections on setbacks. When issues arise — whether it’s a slower filtration, a yield dip, or a shift in melting range — our team’s knowledge comes from actually standing over the equipment, not just studying process diagrams. This connection, built day in and day out, gives every container its place in our story.
The chemical sector is experiencing a wave of growth, pressed by new technologies, stricter environmental targets, and the relentless call for higher quality. As original manufacturers of 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol, we know the pressure to balance volume with the subtleties of analytic depth. Integrating sustainability with demanding quality goals sometimes means self-imposed limits on output to avoid compromising on traceability.
To meet greater diversity in demand, we have developed more robust production sequences and adopted greener, more efficient solvent systems. Not because a customer or regulator insisted, but because the best track record stems from the ability to show, with data and process notes, where each risk has been identified and managed. As the dialogue around responsible sourcing accelerates, our own internal standards anticipate, rather than react to, outside expectations.
We produce 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol with eyes on both process repeatability and end-use flexibility. Every reaction run, every quality check, every impromptu troubleshooting session draws directly from the knowledge gained by actually making this compound and listening to those who use it. We’re not repeating what someone else did; we’re applying direct feedback and lessons learned.
No matter the end application — advanced materials, specialty polymers, or research pilot lines — we back our output with the experience, process records, and willingness to improve that only original, hands-on manufacturing can provide. We value technical dialogue with real users, and keep our operations aligned with both scientific and practical demands.
Producing 4-[(E)-2-(3,5-Dimethoxyphenyl)Ethenyl]-2-Methoxy-Phenol calls for more than chemical mastery; it’s about enduring commitment to improvement, real engagement with innovation, and a respect for the challenges faced by everyone downstream. Our approach draws from years at the reactor, the analytic bench, and the troubleshooting table — and we pledge to bring this perspective to every kilogram we make.