|
HS Code |
343335 |
| Chemical Name | p-Vinylphenol |
| Cas Number | 2628-17-3 |
| Molecular Formula | C8H8O |
| Molar Mass | 120.15 g/mol |
| Appearance | Colorless to pale yellow liquid or solid |
| Melting Point | 30-32 °C |
| Boiling Point | 213-215 °C |
| Density | 1.047 g/cm3 at 25 °C |
| Refractive Index | 1.589 (20 °C) |
| Solubility In Water | Slightly soluble |
| Flash Point | 85 °C |
| Synonyms | 4-Vinylphenol; para-Vinylphenol |
| Iupac Name | 4-Ethenylphenol |
As an accredited P-Vinylphenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | P-Vinylphenol is supplied in a 100g amber glass bottle with a secure screw cap, labeled with hazard and safety information. |
| Shipping | P-Vinylphenol should be shipped in tightly sealed containers, away from heat, sparks, and open flames, as it is flammable. Store in a cool, well-ventilated area, protected from moisture and incompatible materials. Properly label all containers and follow applicable regulations for hazardous materials during transport to ensure safety and compliance. |
| Storage | P-Vinylphenol should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from sources of heat, ignition, and direct sunlight. Keep it separate from oxidizing agents, acids, and bases. Avoid exposure to moisture and air to prevent polymerization. Properly label the container and ensure secondary containment is used to prevent leaks or spills. |
Competitive P-Vinylphenol prices that fit your budget—flexible terms and customized quotes for every order.
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Decades of hands-on chemical synthesis have shown us that the smallest tweaks at the molecular level will often drive the biggest impact in the final product. P-Vinylphenol is a testament to what diligent control and industrial curiosity can produce. In the lab and on the production floor, our focus rests on purity, reliability, and performance. With its formula C8H8O and CAS number 780-39-8, P-Vinylphenol serves as more than a raw ingredient—it has become a technical pillar behind advanced polymer science and specialty coatings.
Our production team relies on continuous batch monitoring and stringent purification steps to avoid isomeric contamination. We consistently achieve a minimum assay of 99% by GC, and we monitor residual moisture and ash to remain well below industry-accepted limits. Achieving this level of control is no easy feat—vinyl group stability and avoidance of oxidative yellowing require exacting inert atmosphere work and conscious storage protocol. Colleagues in our testing division report that insufficient care during purification quickly leads to unwanted byproducts, which can undermine polymerization yields in downstream applications. We invest in these extra steps because end-users—many in high-value electronics and coatings—demand not just high purity, but trace transparency in everything from production logbooks to impurity profiles.
We see formulators choose P-Vinylphenol once and return again due to its high reactivity in free-radical polymerizations. Many other substituted phenols lack the vinyl group at the para position, drastically limiting their function as monomers. The para-vinyl placement not only promotes polymer chain propagation—it often boosts heat resistance and improves film-forming properties in the final polymer. Our customers working with specialty resins, photoresists, and adhesives point out that ortho- or meta-vinylphenols can never substitute this reactivity profile. Where ordinary phenols introduce hurdles in crosslinking, P-Vinylphenol bridges that gap due to its balance of aromatic rigidity and vinyl flexibility.
Our synthesis starts from the base phenolic skeleton, employing careful Friedel–Crafts chemistry and vinylation. The chemical world knows how sensitive vinylphenol monomers can be to oxygen, acids, or even trace metals. Left unchecked, these can spark unwanted polymerization or discoloration, particularly in bulk storage. That risk follows every manufacturer, not just a single supplier. We spent years fine-tuning container choice, introducing rigorously cleaned glass lining and developing nitrogen-blanketed storage to keep every batch fresh. These measures add cost, but skipping them undermines product consistency and shelf life.
Our operations team regularly samples storage vessels for residual acidity and peroxide contamination—qualities rarely found in distributors' bulk stock. Each team member understands what sloppy handling could mean in a semiconductor-grade photoresist or a precision medical adhesive. Handing off clean, colorless P-Vinylphenol feels much more like completing a tailored job for a partner than simply filling an order.
The drive behind every formulation lies in the way raw materials interact—not just in how they look on a certificate of analysis. Over the years, our technical group shadowed several customers on their plant floors, closely watching how P-Vinylphenol incorporation directly affects production runs. A recurring highlight was rapid, near-quantitative conversion under mild free-radical conditions. Process chemists quickly noticed fewer fouling issues in reactors and cleaner lines thanks to its minimal residuals. Comparing this behavior to less carefully produced batches from other sources, ours yielded fewer clogs, waste, or surprises in mass balance end-of-shift totals.
Formulators working in electronics describe another benefit: the clarity and colorlessness of the final copolymers. Other phenol derivatives or lower-purity vinylphenols can off-color or haze, undermining optical properties. Those in coatings or specialty adhesives come back to us for the same reason: our P-Vinylphenol maintains stability during long polymerization cycles and doesn’t easily oxidize or yellow. We never forget that a yellowed batch can mean an entire recall.
Too many producers overlook water and trace metal control, which have a pronounced impact on both reactivity and end-point properties during polymerization. We run regular Karl Fischer titrations to keep water content below 0.1%, since excess moisture threatens the living nature of many chain-growth processes. Chromatographic analysis screens each batch for metals and organic residues, and the acceptance ranges are kept tight. Plant engineers tell us that even a small deviation in batch water content or sodium contamination will disrupt yield and reproducibility in key types of resins. We address this with extra distillation steps, regular glassware maintenance, and ferocious review of incoming raw materials.
We’ve had many technical exchanges with partners facing tough regulatory audits. Our supply logs, traceability down to drum level, and systematic storage histories have helped them pass critical inspections. This discipline sets us apart from suppliers who may only repackage imported bulk. Clients dealing with RoHS or REACH compliance rely on us for transparent impurity profiles and thorough regulatory background. We believe that taking ownership, from reaction vessel to outbound labeling, fosters the deep technical trust needed in today’s critical manufacturing processes.
Chemists new to P-Vinylphenol often ask why not adopt more common substitutes—phenol itself, cresols, or even meta-vinylphenol. Our application research group regularly provides side-by-side performance metrics. Ordinary phenol, although plentiful, fails as a monomer in high-performance plastics since it doesn’t introduce the vinyl functionality required for radical chain growth. Cresols offer some modification, yet their steric profile disrupts polymer backbones needed for optical clarity or mechanical integrity.
Testing meta- or ortho-vinylphenols, we find inferior polymer molecular weight, sluggish conversions, and brittle end-use characteristics. Their substitution pattern impedes copolymer compatibility and knocks down thermal stability, while para-vinyl arrangement in P-Vinylphenol keeps the chain extension smooth. Competitive acrylate monomers, while popular, impart less aromatic rigidity and yield softer, more easily degraded products.
We invest in benchmarking studies, running identical formulas with our P-Vinylphenol versus local alternatives. Nearly every time, ours achieves cleaner polymerization endpoints, better transparency, and greater heat stability. Applications in photoresist synthesis and engineering resins repeatedly confirm that only the para-vinyl structure delivers the unique balance between aromaticity and reactivity.
No process works without a real-world perspective on chemical safety. P-Vinylphenol, while less hazardous than some monomers, poses its own risks. Sensitization, unpleasant odor, and the potential for spontaneous polymerization in the presence of light or peroxide build-up all factor into our daily operations. We avoid bulk exposure by emphasizing sealed transfer lines and closed-loop sampling. Each team member undergoes regular and updated training to handle raw and finished batches, always with new lessons incorporated from incident reports and near-misses.
Our site regularly reviews storage and stability data, recalibrating shelf-life expectations if analytic results shift. Outgassing, vapor containment, and oxygen exclusion are tracked and documented. We believe that robust, transparent safety controls prove crucial for both internal management and external audits—a lesson sometimes learned the hard way across the industry.
Consistency doesn’t spring from a single breakthrough. It grows from painstaking repetition, learning from customer feedback, and being willing to trace every deviation to its root. Our team’s experience shows that moving too fast on a new raw material supply leads to unpredictability batch-to-batch. Instead, we partner closely with raw material producers, test new supplies thoroughly, and only approve them after several months of on-site validation.
We encourage clients to alert us immediately to yield drops or color changes in their application. Many times, a seemingly small deviation in vinyl purity affects a polymerization run many steps down the chain. Catching and solving these issues collaboratively benefits every stakeholder. We actively review production logs for any anomalies, regularly upgrade analytical capabilities, and never hesitate to pull a batch if doubts exist.
Every manufacturer feels the pressure to reduce emissions, minimize waste, and squeeze more from every kilogram of raw feedstock. In our operation, solvent recovery rates are measured as rigorously as product purity. We recycle offcuts and gently used solvents, investing in fractional distillation columns to avoid downcycling product streams. Waste phenolic intermediates are repurposed wherever practical, and emissions are scrubbed above regulatory requirements.
Shared experience with supply chain interruptions prompted our push into local sourcing of critical precursors, both to secure reliable delivery and to reduce the carbon footprint from imports. Investing in process control automation has further minimized energy spikes and excess reagent consumption. These steps may raise short-term costs, yet the long game rewards both us and our clients in stability, cost control, and environmental responsibility.
True product innovation rarely happens in isolation. Over the years, the knowledge we’ve built about P-Vinylphenol has grown through direct dialogue with end-users, academic collaborators, and other manufacturers who are willing to exchange lessons learned. The discovery of improved stabilization protocols originated from a customer’s data showing unexpected polymer decompositions, which prompted in-depth impurity mapping and tighter release criteria.
Collaborations with research teams in advanced materials led us to invest in tailored additive packages—improving shelf life and compatibility with sensitive co-monomers. The feedback loop doesn’t stop at our shipping bays. Our field engineers routinely survey installations at customer sites, checking on long-term storage, flow, and application behavior once the shipment leaves our control. Only by gathering real usage data do we fine-tune our approach, modifying technical guidelines and quality criteria to match evolving industry realities.
What excites us most about this product is witnessing its adoption in new and unexpected sectors. Engineers in sustainable packaging harness its functional versatility to create tougher, lighter films compared to conventional phenolic resins. The world of electronics values its uniqueness in photoresist chemistry. Medical device designers now explore its biocompatibility, leveraging the para-vinyl functionality in applications where clarity, strength, and sterility are not negotiable.
This material’s expanding reputation stems not just from a technical data sheet, but from the visible, measurable impact it delivers in production and the dedication behind every kilogram shipped. We remain driven to extend our know-how, explore tandem polymerization techniques, and provide technical support as new use cases emerge. By remaining open and responsive, we keep P-Vinylphenol at the leading edge of high-performance specialty materials.
Deep familiarity with every production detail shapes the P-Vinylphenol we ship out every day. We’ve discovered that small changes—sometimes invisible to a distant reseller—resonate all the way along the supply chain. Teams that own every piece of their process, from raw phenol arrival to finished drum inspection, can better guarantee the consistency required by demanding end-users.
The difference between a high-specification raw material and a run-of-the-mill substitute rarely appears overnight. It’s the outcome of persistent, engaged attention—a tight process, smart controls, active customer dialogue, and a willingness to review and adapt. P-Vinylphenol stands as one product of this mindset, shaped by experts who have spent years learning what works and what only looks good on paper.