Anhui Liwei Chemical Co., Limited
Products

4-Mehtoxyphenol


    • Product Name 4-Mehtoxyphenol
    • Alias MEHQ
    • Einecs 204-001-0
    • 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

    870187

    Name 4-Methoxyphenol
    Synonyms Hydroquinone monomethyl ether, Mequinol, p-Methoxyphenol
    Chemical Formula C7H8O2
    Molecular Weight 124.14 g/mol
    Appearance White to off-white crystalline solid
    Melting Point 54-57 °C
    Boiling Point 243 °C
    Solubility In Water 5.8 g/L at 25 °C
    Cas Number 150-76-5
    Density 1.127 g/cm³ at 20 °C
    Odor Slight aromatic odor
    Pka 10.2

    As an accredited 4-Mehtoxyphenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 4-Methoxyphenol is supplied in a sealed, amber glass bottle containing 500 grams, with hazard labeling and safety instructions clearly displayed.
    Shipping 4-Methoxyphenol is shipped in tightly sealed containers to prevent moisture and contamination, typically in amber glass bottles or high-density polyethylene (HDPE) containers. Package labeling must comply with regulatory requirements, indicating chemical hazards. Shipments must be handled as a combustible solid, avoiding heat, sparks, and direct sunlight during transit.
    Storage 4-Methoxyphenol should be stored in a tightly closed container, in a cool, dry, well-ventilated area away from incompatible substances such as strong oxidizing agents and acids. Protect from light and moisture, as it may discolor or degrade. Keep away from sources of ignition and heat. Label the storage area clearly and ensure that proper safety precautions are followed.
    Free Quote

    Competitive 4-Mehtoxyphenol prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Introducing Our 4-Methoxyphenol: Manufactured for Reliability and Consistency

    Crafting 4-Methoxyphenol With Purpose

    At our plant, every kilogram of 4-methoxyphenol we produce comes from years of experience, rigorous attention to detail, and respect for what our clients demand in their applications. Since opening our facility doors, we have worked from the ground up with organic synthesis, ensuring the finished product stands up not only to lab testing, but to the real-world challenges faced in industrial workflows. Decades in the field have shown us where 4-methoxyphenol fits best, where it can be stretched, and where it just does the job better than close relatives on the phenol spectrum.

    Our primary grade 4-methoxyphenol has served hundreds of partners in various segments—particularly the polymer, pharmaceutical, and photographic industries. We choose carefully refined raw materials, sourced from fully traced suppliers. We subject every batch to a battery of chemical and spectroscopic checks: HPLC purity, melting point (typically 54–57°C), and moisture content all stay within narrow, reliable limits that our partners have grown to depend on. Every large batch provides a consistent, pale crystalline solid, reducing dusting and improving stability in downstream use. In many facilities and laboratories, this model of 4-methoxyphenol (CAS 150-76-5, also known as MEHQ or p-hydroxyanisole), has become a staple for achieving long product shelf life and adaptability to a spectrum of needs.

    Why 4-Methoxyphenol Matters in Modern Applications

    For anyone formulating acrylic resins or managing polymerizations, inhibition and antioxidant control rest on the quality of the inhibitor at hand. Poorly controlled reactions mean polymer fouling, wasted monomers, and costly downtime. Our own experience has shown—run after run—that starting with high-purity 4-methoxyphenol slices out instability and gives operators predictable thresholds for reaction times. Even in subtle conditions, like ambient UV or unexpected thermal changes, our product resists polymerization creep well above many crude or impure batches that drift through the market.

    In pharmaceutical and cosmetic synthesis, the details truly matter. Oversupply of metal residues or byproducts in 4-methoxyphenol can derail downstream synthesis or produce impurities that escape even robust purification. Clients, especially those compounding anesthetics or cosmetic actives, have told us how previous sources led to batch recalls when analytical data went sideways. Experience tells us that skipping quality here means headaches later. We keep heavy metals and contaminant levels not just within standards, but comfortably below them, aiming for peace of mind and regulatory confidence.

    We often field questions about how our 4-methoxyphenol matches up against other chemical inhibitors such as hydroquinone or t-butylcatechol. Despite chemical similarities, every molecule brings its quirks. Our team has tested side by side: in settings where air sensitivity, volatility, or rapid uptake control is mission critical, 4-methoxyphenol brings unique value with its lower toxicity and decreased volatility. Users in hot, high throughput environments notice fewer evaporative losses, better process control, and less workplace exposure. Differences in solubility—especially in methanolic and aqueous formulations—allow operators to fine-tune dosing without stretching safety margins. We’ve run benchmarks in pilot lots, often finding that the switch to MEHQ grants not just an easier handling experience, but tighter tolerances and lower waste in storage.

    The Story Behind Our Method

    Operators at our facility know the respect that goes into each batch. It’s not just about meeting a certificate or ticking boxes. From the initial loading of anisole to the choice of catalyst, every step draws on years of accumulated know-how. We keep our reactor conditions stable by using digital systems monitored directly by chemists trained in practical troubleshooting, not just analysis. If the temperature, pH, or reaction time drift from the norm, intervening at the right moment can make the difference between a clean yield and a scrap run. Years of operator notes and field reports feed into our process controls, creating a living system of improvement.

    As a result of this attention, our 4-methoxyphenol reaches customers with purity and consistency that aren’t just numbers on a spec sheet—they’re the bedrock of product development and scale-up. We find customers appreciate not only the reliability, but the transparency we offer: full analytical results for each batch, and technical support from people who know the process by memory. Many innovations in our process have come directly from feedback: whether it was improving filtration to widen particle uniformity, or tweaking our drying method to reduce trace solvents to negligible levels.

    Common Uses Share Common Needs—But Outcomes Depend on Details

    In the world of acrylic monomer stabilization, 4-methoxyphenol serves as the guardian against runaway reactions. We have seen firsthand the costs companies bear when using a subpar inhibitor—be that downtime, emergency shutdowns, or contaminated end-products. Reliable product inhibition is not just a cost saver; for many, it’s the only way to enter regulated commercial supply chains or to claim certain warranty protections. From years spent responding to customer audits and technical visits, we know how tight regulatory and insurance frameworks can be. That shapes every update and tweak in our procedure.

    Photographic processing may feel old-fashioned in an increasingly digital age, yet the demand lives on. Precision photography labs rely on developers and stabilizers with almost no room for unexpected color or degradation. Even a trace impurity in 4-methoxyphenol can lead to streaks, haze, or shelf life headaches for photographic chemicals. Our standard of clarity, and our approach to particulate management, were both partly shaped by the needs of these clients. We maintain repeat batches with optical-grade clarity, verified every shipment against our historical records.

    Newer entrants to the cosmetic and pharmaceutical worlds have posed new challenges: worries about cross-contamination, fears of allergenic byproducts, and increasing audits from global regulators. Our team adapts every year—whether that means extra analyses for allergen markers or additional screening for new contamination concerns—as we keep step with changing industry guidelines. For several clients running high-throughput skin creams and topical drugs, providing pharmacopeia-standard 4-methoxyphenol offers not just business value, but regulatory safety buffer and customer trust.

    Comparing 4-Methoxyphenol to Similar Compounds

    The world of phenolic inhibitors and stabilizers is crowded. Compound selection always comes down to real-world results. 4-methoxyphenol, with its electron-donating methoxy group, shows increased resistance to oxidation when compared to base hydroquinone—important for customers pushing the limits on shelf stability or who ship product to warmer climates. Unlike pure hydroquinone, which can darken and degrade with storage, our 4-methoxyphenol remains color-stable under ambient conditions, aided by our low moisture and low-impurity profiles.

    Operators looking at t-butylcatechol or gallic acid derivatives also see distinctions. t-Butylcatechol offers tougher performance at very high oxygen loads, but at the price of increased toxicity and odor—a concern for open-batch processing or sensitive manufacturing environments. In feedback from pilot trials, customers switching to our product have cut their VOC exposure in half, seen fewer storage incidents, and gained leeway in handling time thanks to the inherent stability and low vapor pressure of our formulation. This isn’t just a theoretical advantage; it changes the way plant managers approach loading procedures, ventilation needs, and even waste handling, especially in compliance-heavy industries.

    Listening, Improving, and Growing With Our Partners

    None of this process exists in a vacuum. Every improvement to our 4-methoxyphenol line has come from direct dialogue with the chemists, engineers, and purchasing managers who use it every day. We update our analytical techniques as clients present new needs: expanded purity profiles, novel analytical markers, or compatibility checks for joint formulations. Sometimes that means collaborating on new test protocols, sending pilot lots for parallel analysis, or investing in new detection instruments ahead of the market curve.

    Regulatory shifts—whether they come from the EU, North America, or Asian agencies—present regular challenges to purity and traceability expectations. Every year brings a new set of impurity markers, new test limits, and additional paperwork. We work on the assumption that our partners need to show not just compliance, but the documentation and traceability to withstand detailed audits. Thus, our own batch records, supply chain maps, and control limits reflect the most up-to-date standards demanded by pharmaceutical and specialty chemical buyers. For smaller manufacturers unable to maintain in-house QC labs, the trust they invest in a chemical supplier is high. We respond by maintaining not just technical excellence, but clear, open records and responsive technical support.

    Facing Market and Environmental Pressures

    The landscape for specialty chemicals like 4-methoxyphenol is always shifting. Sourcing raw materials now demands more than cost efficiency—traceability and sustainability rank just as highly for many of our customers, particularly those serving global brands or regulated consumer markets. Our sourcing network, expanded over years of direct relationships, allows us to trace every lot of starting material back to certified sources. We require vendors to share environmental data and certifications, and we routinely validate process consistency by visiting supplier facilities.

    Environmentally, we’ve pushed to minimize waste streams—optimizing our processes to recycle solvents and capture emissions for responsible disposal or reintroduction in secondary streams. It comes from a place of firsthand knowledge: running a chemical plant offers a daily reminder that efficient processes, stable utility use, and clean effluent streams are as much about economics as regulatory compliance. Our investments in greener processing over the past several years have cut our energy footprint while helping us remain in good standing with local and international environmental agencies.

    What Sets Our 4-Methoxyphenol Apart

    While the catalogs of chemical suppliers might list several “grades” of the same compound, we have seen gaps and inconsistencies in many commercial offerings—especially in moisture control, crystal habit, and impurity levels. Our control over the entire process—from raw material procurement to final packaging—means less risk of off-spec shipments and fewer headaches down the line. We don’t simply meet the nominal purity required; we push towards tighter batch-to-batch uniformity, lower color index, and trace metals well below current legal limits.

    Batch after batch, we see customers return for not only our primary specifications, but for the experience that comes along with every shipment: responsive answers, willingness to troubleshoot, and a hands-on approach to technical support. We take pride in offering not just documentation, but real answers drawn from the floor where people make and test this product each week.

    Supporting Future Application Development

    Emerging applications in advanced materials engineering and targeted pharmaceuticals are fast becoming the frontiers for 4-methoxyphenol. Our R&D teams routinely collaborate with research partners to ensure compatibility for next-generation formulations—whether it’s for photoinitiators in 3D printing resins, antioxidant blends for specialty rubbers, or stabilizers in niche medical devices. Such development work often reveals the nuances of batch consistency, trace impurities, and solubility that only a manufacturer with hands-on control can support.

    From early phone calls about feasibility, through to delivery of industrial-scale lots, we invest in genuine technical partnership. By opening our facilities to audits and welcoming customer-side quality teams, we demonstrate our commitment to transparency and improvement at every level.

    Building a Legacy of Trust With Every Shipment

    As manufacturers rooted in chemical synthesis, we don’t view 4-methoxyphenol as just another line item in a catalog. Every step, from raw material receipt through finished product loading, builds on hard-won experience. Our reputation has grown batch by batch, shipment by shipment. The product that leaves our facility must reflect the needs of engineers and formulators who depend on it under real-world constraints, not idealized lab conditions.

    Meeting today’s standards demands vision and adaptability—but our focus remains simple. We seek to provide a reliable, high-quality product that meets client requirements while anticipating changes in industry, regulation, and technical challenge. Through close listening, rigorous testing, and constant process refinement, we ensure that each shipment of our 4-methoxyphenol supports every customer’s ambition and hard work.

    The Path Forward

    Future developments in chemical manufacturing won’t wait for industry consensus—they will come from the direct feedback and real-world results of working manufacturers and clients. We see every feedback cycle, every batch test, and every challenge as fuel for the next improvement. With 4-methoxyphenol, we stand committed to providing more than just a chemical, but a partnership grounded in practice, care, and the pursuit of continual advancement.