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4-Ethoxyphenol

    • Product Name 4-Ethoxyphenol
    • Alias 4-Hydroxyphenetole
    • Einecs 202-223-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    584057

    Cas Number 622-89-9
    Molecular Formula C8H10O2
    Molecular Weight 138.17 g/mol
    Iupac Name 4-ethoxyphenol
    Appearance White to off-white solid
    Melting Point 57-59°C
    Boiling Point 260°C
    Density 1.099 g/cm³
    Solubility In Water Slightly soluble
    Refractive Index 1.541

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

    Packing & Storage
    Packing The packaging for 4-Ethoxyphenol consists of a 250g amber glass bottle with a secure screw cap and clearly labeled chemical information.
    Shipping 4-Ethoxyphenol should be shipped in tightly sealed containers to prevent moisture and contamination, following appropriate chemical shipping regulations. It must be labeled as a hazardous substance, secured against breakage, and transported at ambient temperature. Ensure compatibility with other materials and include all necessary safety and hazard documentation during shipping.
    Storage 4-Ethoxyphenol should be stored in a tightly closed container at a cool, dry, and well-ventilated location away from sources of ignition and incompatible substances such as strong oxidizers. Protect from moisture and direct sunlight. Keep away from heat and flame. Ensure proper labeling and access only to trained personnel. Observe all safety regulations when handling and storing this chemical.
    Application of 4-Ethoxyphenol

    Applications of 4-Ethoxyphenol in Industrial Manufacturing

    We manufacture 4-Ethoxyphenol for direct integration into precisely controlled industrial processes and global supply chains. The applications below demonstrate dedicated use cases where our material delivers value by supporting critical reactions and end-product qualities in regulated, audited environments. All details reflect current industry best practices and compliance benchmarks as used by leading downstream manufacturers.

    1. Synthesis of Hair Dye Intermediates

    4-Ethoxyphenol acts as a key coupling agent in the formulation of oxidative hair dye intermediates, particularly in permanent coloring systems. Dye manufacturers add this material during the precursor synthesis step, where it provides discrete shade modulation and stability against light-induced degradation. End formulations rely on purity and precise dose control for achieving compliance with colorant restrictions in finished consumer hair products.

    Industry compliance standards

    • EU Regulation (EC) No 1223/2009 on Cosmetic Products
    • U.S. Food and Drug Administration (21 CFR 73, subpart C: Cosmetics)
    • China GB/T 29663-2013 Hygienic Standard for Cosmetics
    • REACH Registration (Annex VI, Cosmetic colorants)

    Typical usage ratio

    • 2%–8% in dye intermediate synthesis; formulation rates adjusted based on targeted color intensity and reactivity with primary aromatic amines

    Downstream process integration

    • Added during azo- or quinone-imine dye precursor synthesis, prior to oxidative polymerization and stabilization steps

    Final product types

    • Permanent oxidative hair color creams and gels
    • Developer solutions and pre-mix dye concentrates
    • Professional salon color systems

    2. Pharmaceutical Intermediate for Paracetamol (Acetaminophen) Derivatives

    This material functions as an etherification substrate in multi-step synthesis of select paracetamol derivatives and related analgesics. Pharmaceutical API manufacturers depend on its chemical integrity for side-chain introduction, supporting scale-up in batch-wise or continuous flow systems run under cGMP conditions. The process requires stringent trace control for unreacted phenol and byproducts to meet pharmacopoeial purity.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP–NF (U.S. Pharmacopeia–National Formulary)
    • European Pharmacopoeia (Ph. Eur.)
    • Chinese Pharmacopoeia (ChP)

    Typical usage ratio

    • 0.8–1.2 molar equivalents versus the aminophenol precursor; adjusted to drive full conversion and minimize residual ether

    Downstream process integration

    • Introduced at etherification or alkylation step; further processed through crystallization and repeated purification via recrystallization or chromatography before API isolation

    Final product types

    • Paracetamol derivative APIs (active pharmaceutical ingredients)
    • Analgesic and antipyretic oral tablet intermediates
    • Syrup suspension and capsule preparations

    3. Epoxy Resin Modifiers for Electrical Insulation Systems

    Manufacturers incorporate this material as a nucleophilic phenolic chain stopper and antioxidant precursor in specialty epoxy resin blends for electrical castings and laminates. During compounding, the additive enhances network flexibility while controlling cross-link density, ensuring resin systems meet strict insulation and mechanical strength criteria for global power and electronics sectors. Full traceability and cured sample testing are standard in production releases.

    Industry compliance standards

    • IEC 60216 (Electrical Insulating Materials—Thermal Endurance Properties)
    • UL 94 Flammability Safety Tests
    • RoHS Directive (EU 2011/65/EU, restricted substances)
    • ISO 9001:2015 Quality Management Systems

    Typical usage ratio

    • 0.5%–2.5% by weight in total epoxy resin; dosage optimized for cure kinetics, balancing flexibility and high-voltage resistance

    Downstream process integration

    • Introduced during reactor compounding stage before resin casting or molding; followed by thermosetting and post-cure thermal cycling

    Final product types

    • Circuit board laminates (PCB prepregs and base materials)
    • Transformer and motor encapsulation resins
    • High-voltage cable insulation compounds

    4. Synthesis of Agrochemical Formulations: Herbicide Precursors

    Chemical agro manufacturers employ 4-Ethoxyphenol as a core intermediate in the synthesis of certain phenoxy-based herbicide active ingredients. Its inclusion as an ether precursor occurs under controlled, closed-vessel reaction conditions, supporting both laboratory scale-up and industrial campaigns for selective broadleaf herbicide formulations. Ongoing monitoring of output purity and environmental discharge aligns with stringent EU and U.S. agrochemical safety protocols.

    Industry compliance standards

    • FAO/WHO Guidelines on Pesticide Specification (JMPS)
    • EU Regulation (EC) No 1107/2009 on Plant Protection Products
    • U.S. EPA Registration (40 CFR Part 180: Tolerances and Exemptions for Pesticide Chemicals in Food)
    • ISO 17025:2017 Testing Laboratory Accreditation (for QC release)

    Typical usage ratio

    • 1.5%–6% in synthesis route, dependent on target herbicide structure and reaction stoichiometry

    Downstream process integration

    • Charged in etherification reaction with haloacetic acid or chloroalkyl intermediates, followed by condensation and purification before final formulation

    Final product types

    • Selective post-emergence herbicide actives
    • Water-dispersible granules and emulsifiable concentrate herbicide products

    5. Stabilizer Component for Photographic Developers

    Specialty photographic chemical producers rely on 4-Ethoxyphenol to maintain image stability and suppress unwanted oxidations during film developer preparation. Used in both black-and-white and color developer compositions, it enters at the antioxidant step, interacting with reducing agents to increase shelf-life and uniformity of developer solutions for professional and industrial photo processing.

    Industry compliance standards

    • ISO 18902:2020 Imaging Materials—Processed Films and Prints—Storage Practices
    • Kodak and FujiFilm Internal QC Protocols (industrial supply)
    • European Directive 2001/95/EC, General Product Safety (as applicable to chemicals in consumer imaging)
    • ANSI/NAPM IT9.2—Imaging Media—Photographic Processed Films, Stability Requirements

    Typical usage ratio

    • 0.2%–1.0% by weight in concentrated developer formulations; adjusted for process exposure, replenishment rate, and emulsion chemistry

    Downstream process integration

    • Dissolved in aqueous-organic developer solutions during formulation, homogenized with other antioxidants and reducing agents prior to packaging

    Final product types

    • Commercial photographic developer concentrates
    • Film lab processing kits
    • Archival processing solutions for motion picture and healthcare imaging
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    Certification & Compliance
    More Introduction

    4-Ethoxyphenol: Reliability Born from the Reaction Vessel

    A Closer Look Inside the Reactor

    Producing 4-Ethoxyphenol starts with precise chemistry and a deep understanding of what both laboratory scientists and industrial users expect from their materials. From our point of view as a chemical manufacturer, every batch draws on controlled conditions and clear, consistent protocols. Our team monitors the etherification of hydroquinone or phenol with ethylating agents, aiming for purity over 99% to keep by-products to a minimum. Color, contaminant levels, and water content all matter, not only to regulators but to downstream processors who might make dyes, pharmaceuticals, or agrochemicals. If a batch falls short, there's no way it leaves our warehouse.

    Much of the value in 4-Ethoxyphenol comes from its reliability as an intermediate. Customers working on antioxidants for rubbers or dyes rely on a consistent melting point, which we regularly confirm between 54 and 57 degrees Celsius. Small shifts outside this range can hint at impurities that degrade stability or introduce unwanted reactions further along the chain. Over the years, feedback from those who formulate resins or acrylic modifiers has driven us to keep our typical iron and heavy metal levels extremely low—often well beneath global standards—to improve compatibility with high-spec synthesis.

    Meeting Market Needs, Not Just Passing Tests

    Laboratory measurements only tell part of the story. A technical manager from an adhesive plant once walked us through issues that cropped up when they switched 4-Ethoxyphenol suppliers. Even though both products hit purity specs on paper, theirs generated more colored side products during polymerization. Their batches saw a noticeable drop in UV stability. Investigating further, we found that trace bromides and slight excess residual solvents made the difference. Real-world results push us to keep refining purification—not just routine column runs, but selective crystallization and regular equipment swaps to prevent cross-contamination.

    Our focus isn’t only on raw purity. Flowability determines charging speed and minimizes losses, especially for high-throughput or continuous-feed systems. Clumpy powders cause significant downtime, and sticky material risks plugging feeders. Real-time feedback from our own process chemists led us to tweak both milling and drying stages until granule texture and density fit what the operators prefer. We record not only moisture but particle size distribution, since small shifts toward fines can contribute to issues with dust and caking.

    The Right Fit for the Right Process

    Users often ask how 4-Ethoxyphenol distinguishes itself from its close relatives, such as 4-methoxyphenol or unsubstituted phenols. The key lies in both chemical reactivity and physical properties. The ethoxy group slows down oxidation compared to methoxy variants, giving formulations improved color stability. In epoxy-cure and photographic developer markets, this translates into less yellowing during shelf life. The boiling and melting points land in a moderate zone, simplifying both bulk storage and fine handling. In high-performance dye synthesis, choosing ethoxy rather than methoxy avoids unwanted side reactions, especially in sulfonation or halogenation pathways.

    Pharmaceutical developers have pointed out that 4-Ethoxyphenol offers a compromise between hydrophobicity and electronic effect compared to its methyl analogs, influencing both bioavailability and metabolic stability for certain candidate molecules. This difference matters at the formulation and regulatory filing stages where even minor performance gains justify process changes. By supporting these conversations with batch-specific impurity profiles and stability data from our own labs, we help formulators move faster from pilot scale toward production.

    Building Trust in a Transparent Supply Chain

    No manufacturer meets every customer need through specifications alone. Walking the plant floor, it’s clear that trust comes from seeing where materials originate, understanding how they are handled, and knowing the thinking behind every step. We invite regular audits and customer visits. Plant tours uncover small details—how we manage utility water so steam stays ultra-pure, how we route waste lines, and how we keep product transfers organized by production line. Sharing these practices isn’t marketing; it’s the only way to guarantee that end-users—especially those in regulated fields—have confidence to innovate with our material.

    A handful of customers in advanced coatings demand heavy documentation. Supplying this level of transparency took years of adjusting, building redundancy into raw material sourcing, and enlisting third-party labs for verification. We learned early that even routine tests, like Karl Fischer titration or ICP-OES, fail when batch containers aren’t sampled correctly. This experience prompted a redesign of our sampling protocols and tank labeling, ensuring traceability from upstream to end-use.

    Solutions for Shifting Demands

    Market swings do not operate on laboratory timescales. Over the last decade, demand for 4-Ethoxyphenol drifted from mostly legacy dye production toward electronics and specialty elastomers. This brought new requirements. Some electronic grade users told us small quantities of residual alkaline residues interfered with thin-film depositions. We pivoted our washing and crystallization to cater to these priorities. Downstream, a few elastomer manufacturers flagged variability in melt viscosity when processing batches with trace-off impurities. Working directly with their quality teams, we personalized filtration steps and offered rapid-response shipments for troubleshooting.

    Sometimes a single batch reveals process gaps—a wonky reaction yield, or a powder that sticks in the big bags during a rain-dampened delivery. Each issue leads to plant engineers sitting down with production teams, adjusting how we dry, grind, or pack. We learn most by solving problems together with users rather than locking down spec sheets. Years ago, a pigment customer sought a smaller median particle size. We trialed modifications to our granulation line, producing test lots with varied sieves, and let results drive future runs. Looking backward, this wasn’t a quick win, but it shaped a new, value-added product line that now supports several niche segments.

    The Difference Comes Down to Practice

    It’s easy to forget behind-the-scenes tweaks in modern chemical production. Differences between 4-Ethoxyphenol grades found in the market often stem from practices invisible to the end-user. If a reactor operator rushes the final vacuum drying, one might see trace water linger, inviting hydrolysis in sensitive syntheses. Strict adherence to raw material vetting means we reject phenol lots that pass generic commodity tests but fail by trace impurity fingerprinting—a level of selectivity invisible in typical contract reviews. It’s not about pleasing every customer, but about reliability for those whose products depend on chemistry working every single time.

    By contrast, traders and distributors tend to repackage and sell already-produced material, relying on supplied documentation. As direct producers, we see every deviation as an opportunity to improve, whether uncovering a subtle difference in batch hue or a drift in crystalline habit under microscope scans. Our multi-disciplinary teams—process, analytical and application chemists—pool education and field experience. Decisions get made on plant floors, next to processors, rather than in marketing suites far from the smell of solvents and thrum of centrifugal pumps.

    Beyond the Commodity: Addressing Tomorrow’s Challenges

    Trends shift, risks change, and regulatory lines keep moving. Over the past five years, several customers flagged the growing pressure to certify batches for new environmental standards, especially around process water and by-product generation. We responded by establishing in-house environmental analysis, integrating waste monitoring with our digital plant logs. The insights gained helped us cut process water load and reduce solvent consumption for extraction. Offering a product with lower lifecycle impact is key to helping downstream users meet green chemistry initiatives and safety goals.

    Another challenge centers on consistency in long-haul logistics. Temperature swings during transport, particularly cross-border, threatened product texture for some buyers in hotter regions. Our packaging team shifted to high-barrier liners and invested in climate-monitored containers for qualification runs. Data loggers now send live updates, allowing us to adjust shipping protocols during adverse weather. Some customers in tropical zones pushed for granular forms over traditional fine powders to further reduce risk of caking or premature degradation on arrival. Adaptations like these rarely show up in a supplier brochure but matter enormously for the operator pouring bags or charging reactors miles from the producing plant.

    Continuous Dialogue with the Scientific Community

    Staying connected to users and the broader community keeps us honest. Our R&D chemists attend conferences and present on advances in phenolic intermediates, encouraging engagement with academic and industrial researchers. Techniques pioneered in one field—such as micro-encapsulation for delayed release in agricultural uses—inform how we approach formulation support. Visiting university labs where 4-Ethoxyphenol gets tested in radical-blocking polymers or next-generation photoresists, we get perspective on how tiny variations influence performance at scale. Sometimes a single comment from a researcher leads us to trial new stabilization agents or rethink an old crystallization protocol.

    A focus on continuous learning lets us anticipate shifts in demand. When a pharmaceutical lab commented on improved anti-microbial potential when using ultra-low-halide 4-Ethoxyphenol, we responded by checking for cross-reactivity across several pilot lots. More recently, feedback from green chemistry advocates challenged us to lower energy inputs for our core synthesis. We are piloting catalytic route optimizations in response, both for lower emissions and for cost savings that can be shared with customers.

    Safety, Responsibility, and Human Touch

    Every kilogram of 4-Ethoxyphenol produced gets its start in vessels operated by trained technicians. We invest in ongoing safety drills, review compliance with both local and global regulations, and continuously monitor occupational exposure on-site. Our safety procedures extend beyond our plant—collaboration with customers on proper storage, ventilation design, and disposal ensures responsible handling all the way down the supply chain. Buyers in regulated fields, from pharmaceuticals to electronics, increasingly seek comprehensive support on compliance. Conversations around safety data, new regulatory alerts, and risk assessment stand center stage in our customer dialogues. Once, a partner in a medical materials start-up requested a labeling change for enhanced traceability—within weeks, we had barcode-based tracking up and running, improving transparency for all users.

    Questions around responsible sourcing and trace elements regularly drive us to review our own supply chain. Periodic audits cover upstream suppliers of phenol and ethylating agents to verify labor and environmental standards. Users can ask for documentation to confirm materials are free from conflict minerals or meet regional requirements for hazardous restricted substances. Our commitment to these principles means our 4-Ethoxyphenol sometimes costs a little more, but it gives our partners—especially those in advanced or regulated fields—a firm foundation on which to build their own innovations.

    Forging Partnerships, Not Just Supplying Product

    At core, real difference comes not from the fine print on a specification sheet, but from collective experience and long-term partnerships. Our team includes former users—chemists who once stood on the other side of the purchasing table—who bring their understanding of process headaches and innovation roadblocks. Regular working sessions with users let us co-create solutions, whether it means custom packaging for cleanroom settings, tailored impurity profiles, or help troubleshooting a stubborn reaction step.

    Recent collaborations have led to targeted improvements. One agrochemical manufacturer flagged inconsistent color formation in their final product when changing seasons affected input water quality. We traced this to slightly shifted moisture in a late-stage wash. Adapting our humidity controls and introducing real-time water analysis on the relevant production day restored batch-to-batch consistency. This example stands as a reminder that sometimes the most valuable improvements arise not from grand innovation, but from careful attention to day-to-day process detail.

    Looking forward, 4-Ethoxyphenol will continue to play a central role in emerging materials and life science applications. Our approach remains rooted in deep technical knowledge, open communication, and persistent fine-tuning of both process and logistics. Instead of relying on generic claims or disconnected data, we prioritize substance behind every shipment and every handshake. For every user pulling product from a drum or fiber bag, we intend to deliver not just a reagent, but decades of focused know-how backing up every batch.