Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

4-Ethyl-M-Xylene

    • Product Name 4-Ethyl-M-Xylene
    • Alias 4-Ethyl-1,3-dimethylbenzene
    • Einecs 210-645-9
    • 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

    282556

    Chemical Name 4-Ethyl-m-xylene
    Cas Number 626-25-9
    Molecular Formula C10H14
    Molecular Weight 134.22 g/mol
    Appearance Colorless liquid
    Boiling Point 190-192 °C
    Melting Point -38 °C
    Density 0.87 g/cm3
    Flash Point 62 °C
    Refractive Index 1.490
    Solubility In Water Insoluble
    Odor Aromatic
    Pubchem Cid 12304

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

    Packing & Storage
    Packing 4-Ethyl-M-Xylene is packaged in a 500 mL amber glass bottle, with a secure cap and chemical-resistant labeling for safety.
    Shipping 4-Ethyl-m-xylene is shipped in tightly sealed containers, typically drums or bottles, to prevent leaks and exposure. It is classified as a flammable liquid, requiring labeling according to hazardous material regulations. Transport follows relevant guidelines for chemical safety, ensuring temperature control, proper ventilation, and protection from sparks, flame, or excessive heat during transit.
    Storage 4-Ethyl-m-xylene should be stored in a tightly closed, clearly labeled container in a cool, dry, and well-ventilated area away from sources of ignition. Keep it away from oxidizing agents, acids, and strong bases. Store in compliance with local regulations, and ensure proper grounding and bonding to prevent static discharge. Protect from direct sunlight and incompatible materials.
    Application of 4-Ethyl-M-Xylene

    Applications of 4-Ethyl-M-Xylene in Industrial Manufacturing

    As a direct manufacturer, we supply 4-Ethyl-M-Xylene to leading players across core chemical industries. Its highly specific aromatic structure supports performance requirements in targeted synthesis routes, contributing both as a chemical building block and a process intermediate. Below, we provide a detailed segmentation of real downstream usage cases, process roles, and compliance parameters, guiding procurement and technical integration for industrial users.

    1. High-Purity Isophthalic Acid (IPA) Production

    Major petrochemical and polyester manufacturers use 4-Ethyl-M-Xylene as a key intermediate in the selective oxidation of alkyl aromatics for isophthalic acid production, which serves as a monomer in high-performance PET plastics. Its consistent purity supports stringent yield requirements and downstream color quality. IPA plants control oxidative parameters to manage byproduct profile and maximize conversion to isophthalic acid, integrating our material in continuous catalytic oxidation reactors equipped with modern process analytics.

    Industry compliance standards

    • ISO 9001 Quality Management System
    • REACH Regulation (EC) No 1907/2006
    • US EPA Toxic Substances Control Act (TSCA) inventory
    • EU Commission Regulation (EU) No 10/2011 (for intermediate use in food-contact PET production)

    Typical usage ratio

    • 0.8–1.1 ton per ton of isophthalic acid output (adjusted for feedstock purity and targeted co-product selectivity; analytical QC tailors charge rate in response to batch tracking data)

    Downstream process integration

    • Pumped as feedstock to oxidation reactor train; real-time GC-MS monitors input
    • Undergoes liquid phase catalytic oxidation with air/oxygen under pressure
    • Post-reaction separation removes byproducts and enables IPA purification

    Final product types

    • High-purity isophthalic acid (for polyesters and PET resins)
    • Specialty PET bottles and films
    • Unsaturated polyester resins for composites

    2. Synthesizing 3,4-Dimethylbenzaldehyde for Agrochemicals

    Aromatic aldehydes derived from 4-Ethyl-M-Xylene enter as core intermediates in the formulation of advanced crop protection agents. Through controlled oxychlorination and side-chain functionalization, agrochemical manufacturers tap its reactivity for targeted synthesis of 3,4-dimethylbenzaldehyde, which undergoes further modifications to build proprietary herbicide actives. The manufacturing line is equipped for tight emissions controls due to regulatory constraints on aromatic processing.

    Industry compliance standards

    • ISO 14001:2015 Environmental Management
    • Chinese Agrochemical Registration (ICAMA regulations)
    • US EPA Pesticide Registration Numbers (for downstream actives)
    • REACH Annex VII (for intermediates of >1 tonne/year)

    Typical usage ratio

    • 0.6–0.9 mole per mole of 3,4-dimethylbenzaldehyde (seasonal or regional adjustment based on crop cycle demand and targeted impurity limits)

    Downstream process integration

    • Introduced post-distillation as the starting aromatic nucleus
    • Subjected to side-chain oxidation under catalytic control in solvent or emulsion system
    • Subsequent functionalization completes conversion to aldehyde derivatives

    Final product types

    • Key building blocks for proprietary herbicides
    • Intermediates for broadleaf weed control formulations
    • Specialty plant growth regulators

    3. Fragrance and Aroma Chemical Synthesis

    Fine chemistry firms utilize 4-Ethyl-M-Xylene in the manufacture of select musk and floral aroma compounds. Aromatic alkylation and subsequent oxidation yield synthetic musks with enhanced thermal persistence, while maintaining a clean organoleptic profile. The raw material’s aromatic backbone is critical to producing aroma intermediates with defined isomer composition, supporting batch-to-batch olfactory consistency in downstream compounding of fragrances for both personal care and household products.

    Industry compliance standards

    • International Fragrance Association (IFRA) Standards
    • Cosmetic Ingredient Review (CIR) safety assessments
    • EU Regulation (EC) No 1223/2009 for cosmetics
    • ISO 22716 Good Manufacturing Practices for cosmetics

    Typical usage ratio

    • 2–5% of formulation mass for aroma intermediate runs (final ratio tuned by target note, process yield, and perfumer input; batch purity targets organoleptic thresholds)

    Downstream process integration

    • Feeds into alkylation reactors under Friedel-Crafts conditions with metal halide catalysts
    • Intermediate streams distilled and oxidized to target musks
    • Compiled intermediates enter fragrance blending and stabilization plant

    Final product types

    • Musk aroma chemicals for perfumery
    • Synthetic floral notes for detergents
    • Aroma intermediates for fine fragrances and hair care

    4. Electronic Grade Solvents & Coupling Agents

    Advanced electronics and semiconductor facilities employ 4-Ethyl-M-Xylene derivatives as tailored solvents and coupling agents. During photoresist manufacturing and specialty film deposition, its aromaticity enables selective solubilization and resin compatibility, reducing defects and supporting high dielectric layer homogeneity. Only ultra-pure grades meet process standards, with rigorous in-house QC testing every incoming lot for trace metals and non-volatile residue.

    Industry compliance standards

    • SEMI C-3 Standard (for solvents and organics)
    • IATF 16949:2016 (for automotive semiconductors)
    • IEC 60747 Cleanroom chemical handling
    • ISO 14644 Cleanroom environmental control

    Typical usage ratio

    • 1–10% of total solvent system by volume (usage fine-tuned by resist type, application viscosity, and curing schedule; analytical labs adjust ratio after dry-down and particle count tests)

    Downstream process integration

    • Dosed into photoresist or dielectric formulation kettles under nitrogen
    • Mixed in stainless blending vessels monitored for particulate and ionic contamination
    • Fed via precision pumps into coating or photolithography lines

    Final product types

    • Microelectronic photoresist formulations
    • High-resolution printed circuit board coatings
    • Dielectric films for integrated circuit fabrication

    5. Specialty Polyester Resin Precursors

    Resin manufacturers deploy our aromatic intermediate in tailoring specialty polyester chains for engineered plastics applications requiring defined hydrolytic stability and controlled optical clarity. In copolymerization with other isophthalic derivatives, users precisely meter the feed to match mechanical strength targets for optical sheets, electrical laminates, and packaging films, with continuous in-process spectral monitoring to confirm end-use compliance.

    Industry compliance standards

    • FDA 21 CFR 177.1630 (Polyethylene Terephthalate Polymers for food contact)
    • UL 94 Flammability Standard (for electrical laminates)
    • RoHS Directive 2011/65/EU (for electronics)
    • ISO 9001 certified continuous polymerization lines

    Typical usage ratio

    • 0.5–1.5 mol% as comonomer, adjusted for glass transition temperature and process melt viscosity (fine tuning based on product’s end-use performance targets)

    Downstream process integration

    • Metered into copolymerization kettles with main glycol and acid reactants
    • Polycondensation under vacuum or inert atmosphere
    • Real-time IR and viscosity measurement during melt phase

    Final product types

    • Specialty thermoplastic polyesters
    • Optical-grade polyester films
    • Electrical and food-contact packaging sheets
    Free Quote

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

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    4-Ethyl-M-Xylene: Our Commitment to Quality and Industry Needs

    What 4-Ethyl-M-Xylene Brings to the Table

    At our plant, 4-Ethyl-M-Xylene, often referenced by its CAS number 620-16-2, runs through a carefully controlled process. Every batch we ship reflects our attention to detail and the lessons we have gathered on the shop floor. The demand for this compound traces back to the deeper push in specialty chemicals for rigid molecular architectures that standard xylenes cannot match. The core of our operation involves making 4-Ethyl-M-Xylene with proper isomeric purity. This approach shields downstream formulations from unpredictable behaviors, especially in advanced intermediates and performance blends.

    Customers who walk through the gates of our facility expect transparency and consistency. They seek partners who handle material nuances and avoid introducing silent contaminants that can throw lab analysis off course. We haven’t built our reputation overnight; we have earned it by listening to the people who ask tough questions about trace byproducts, solvent residue, and the subtleties that define one barrel from another.

    Production That Sets Standards

    Our equipment doesn’t leave much to chance. Raw material quality, distillation cuts, and cleaning schedules—each step works toward a product that stands up to industry scrutiny. We’ve adjusted our synthesis protocols over time, tightening the range of possible impurities through repeated feedback. The current product contains less than 0.1% non-target isomers, and this feat took much more than paperwork. Our staff runs regular in-process monitoring, taking pride in reporting variance before the blend leaves our reactors.

    Because 4-Ethyl-M-Xylene shares similarities with other C10 aromatics, we often field questions from technical managers. They want to know what sets our product apart from standard mixed xylenes or simple ethyl-substituted variants. The answer lies in both the position and nature of its molecular structure. It offers different reactivity and solubility compared to conventional xylenes, which become decisive in end uses like organic synthesis, dye intermediates, and high-grade performance fluids.

    We do not cut corners by blending off-spec material into standard lots. Our team rejects deliveries that fall outside the defined limits. Every drum leaving our warehouse holds a certificate based on real batch data. Laboratories count on this traceability, especially where downstream reactions show a narrow window for side reactions.

    Daily Applications and Industry Dependency

    In practice, 4-Ethyl-M-Xylene keeps several value chains running. Take the intermediates segment—manufacturers who build out advanced polymers or specialty dyes consistently request this compound for its clean substitution pattern. The same holds for antioxidants and certain specialty solvents. Unlike standard p-xylene or m-xylene, which see wide usage in bulk commodity applications, 4-Ethyl-M-Xylene stays in the hands of technical staff with precise needs.

    Research labs searching for reliable building blocks gravitate toward our product because of its unique profile. The meta-substitution, with an ethyl group and two methyl groups, can nudge reactivity in specific directions, especially during controlled alkylation or oxidation. Colleagues in QA often relay anecdotes about pilot runs where other suppliers’ inconsistent material undermined the very point of a small-batch test. We have seen the ripple effects of such inconsistencies, from off-color resins to volatile impurity spikes in chromatograms.

    Users who handle our 4-Ethyl-M-Xylene as a solvent in specialized coatings point to its volatility and solvency window, which suit certain binders out of reach for generic xylenes. Batches maintain color clarity, with water and acid numbers well below trade maximums. This comes not from following someone else’s standards but from setting up inspections and maintaining flow efficiency.

    Why Specification Integrity Matters

    Too many years on the line have taught us that quality control reports make the difference between success and trouble with regulators later down the road. We keep backward documentation, batch trend logs, and cross-functional signoffs on file for years. We don’t rely on periodic audits alone. Instead, our staff has direct accountability for every analytical batch test, including gas chromatography and impurity profiles. Fielding questions when an end-customer finds a trace halogen compound is part of the job, and we would rather address it in-house before anything reaches a truck.

    As the market for 4-Ethyl-M-Xylene grows, so does the expectation for substances free from legacy contaminants. Our plant invested in an extra polishing step after the main distillation. We pay special attention when refineries upstream modify their feedstocks, since this can mean shifting profiles on trace aromatics. In some seasons, meeting customer specs demands extra vigilance from our process engineers and lab techs. We don’t let our guard down just because past shipments received good feedback. New lots always go through fresh scrutiny.

    Differences From Standard Xylenes and Close Relatives

    Xylenes show up with three labeling conventions: ortho, meta, and para, each tailored for different markets. Our product falls into a niche, outpacing regular m-xylene or ethylbenzene for specific advanced applications. Users often want to know why 4-Ethyl-M-Xylene stands out beyond minor substitutions. We have collected enough comparative field data to highlight the value:

    This attention to small details means downstream plants using our product for organic synthesis don’t run into repeated product blacklisting or requalification work—a source of frustration in the sector. Our position as the original manufacturer, not a repackager, puts us under the magnifying glass from procurement teams. We welcome this scrutiny as it keeps every operator sharp.

    Long-Term Relationships Built by Meeting Practical Needs

    Every order of 4-Ethyl-M-Xylene hits the road with our signature, and we do not take that responsibility lightly. Procurement staff return because of predictable chromatography, not empty promises. Downtime at a resin factory due to off-grade aromatics triggers long, difficult explanations on their end—real people with real jobs at stake. The material we ship fills an actual gap that close substitutes cannot, especially as regulations push for ever-cleaner chemical profiles and tighter reporting on trace additives.

    Across several years, our production teams have solved field complaints by direct engagement. Most issues have roots in handling, sometimes as mundane as drum contamination or valves fouled from incompatible solvents. Rather than pointing a finger or hiding behind technical sheets, we have always sent site support staff to see what happened in person. It’s this work ethic—shaped by hundreds of shipments, surprise inspections, and late-night phone calls from labs stuck running a rush order—that maintains customer confidence.

    We don’t force distributors or middlemen into the conversation about requalifying product if there’s a hiccup. Every issue finds a home with the technical production team. This approach builds bridges with engineers and process managers who appreciate a partner that can speak clearly about batch problems and outline real fixes based on first-hand plant runs. Our focus never wavers: keeping our product consistent while meeting the needs of scientists and industrial operators who rely on precise chemical inputs.

    The Road Ahead: Tighter Specs, Smarter Processes

    Regulations change faster than many expect, driving demand for aromatic intermediates that stay below specific impurity and residual solvent cutoffs. With every new data point gathered during production and each customer critique of a shipment, we fine-tune our purification steps. Years ago, some called it overkill to subject a product like 4-Ethyl-M-Xylene to advanced mass spectrometry scans. Today, those efforts reflect the standard most end users want to see.

    The cost of upholding these standards sometimes means running smaller, more frequent batches, sacrificing throughput for purity. We see it as a worthwhile tradeoff, especially when pilot plant managers report fewer fouled columns or strange spectral peaks. The few off-spec drums that slip through never go to market. We handle each outlier internally, with a full root cause review before deciding how to reprocess or dispose of suspect material.

    Listening to Customers, Not Chasing Trends

    Our clients tend to be less interested in buzzwords and more invested in what actually happens in their reactors. Over the decades, we’ve learned the most about 4-Ethyl-M-Xylene from users working in complex syntheses, who demand clarity on trace impurities and odd side reactions others might miss. Their concerns drive the investments we make in analytical gear and plant upgrades. No glossy brochures or one-size-fits-all speeches—just straight answers and open notebooks.

    R&D staff come to us with tough requests. They may need a modification to the usual cut, tighter limits on sulfur, or a unique lot certified toward a specific downstream process. Our team approaches these requests not as interruptions but as opportunities to collaborate and refine our offering. Years of direct engagement with end users show that most headaches rise from mismatched material expectations rather than pure specification failures. We keep in contact with chemists and engineers who specify root-level needs.

    Those running large-scale manufacturing processes find value in our historical production logs. Small changes introduced upstream—like a difference in catalyst supply or a switched cleaning solvent—show up in physical properties. Sharing these findings with our customers, rather than hiding them under the carpet, prevents confusion and bridges trust gaps. Customers now shape product improvements; our shipping docs and certificates reflect real questions that dot plant floors and laboratory benches.

    Manufacturing Lessons Learned Along the Way

    Not every production run has gone as planned. We’ve seen the effects of power surges on column temperature stabilization, which sometimes trickle through to the tail end of a distillation cut. Quick reactions have avoided off-grade stock finding its way to end customers, but every close call ends up in our training sessions. The newer batch operators learn from these events, sharpening their eye for small signs of variance in tank reading charts and vapor phase behavior.

    Trace oxygenates once crept into a summer shipment due to a temporary seal degradation in a line connecting our separation unit. We don’t forget these moments. Instead, we revise both maintenance schedules and live data alerts. Long-time customers benefit from these hard truths—what we catch once does not come back around.

    We talk openly in production meetings about the “what-ifs” and near-miss events, sharing both the headaches and the wins. The goal has always been to deliver a product where surprises are minimized, letting end users trust the numbers printed on certificates and batch logs.

    Pushing for Better Practices

    Reputation in chemical manufacturing does not arise from smooth marketing. It comes from reactions that run on schedule and no sudden surprises between technical spec sheets and physical delivery. 4-Ethyl-M-Xylene demands hands-on diligence—not just lab skill but deep mechanical insight into how new feedstock arrivals or ambient temperature changes affect outcome. We push for continuous cross-training among engineers, chemists, and maintenance crews so nobody remains in the dark on a critical batch step.

    Beyond regulatory pressure, market expectations for safety and purity grow every year. Our approach means staying ahead of documentation trends, but documentation counts little without real operational discipline. We emphasize double-checking moisture meters, cross-verifying gas chromatograms, and maintaining dialog with packaging crews about possible oil ingress at transfer points. Every member of our operation plays a distinct role in the chain from synthesis to transport.

    By strengthening plant-wide vigilance, we close loopholes that would otherwise introduce discrepancies that show up in high-stakes downstream environments. A minor oversight in our plant can mean major rework or even compliance headaches at the final point of use. We invest in early detection and honest internal critique. The clearest proof of this is the repeat purchase orders from partners who have learned the true cost of inconsistency elsewhere.

    The Heart of Reliable Supply: Real People

    No automated process or single piece of equipment keeps quality stable on its own. Behind every delivered container of 4-Ethyl-M-Xylene stands a team committed to seeing issues before they reach the customer. Operators monitor reactor balance, lab techs study impurity signatures, and shipping crews observe loading and seal conditions. Management does not shelter problems behind hierarchy; issues discovered on the floor get prompt attention with resources allocated for a quick and lasting fix.

    Face-to-face conversations—whether at customer audits, industry events, or support visits—have shaped both process improvement and customer understanding of the product. The trust built through these interactions outlives minor setbacks or delays. End users respond positively when they know plant staff take feedback seriously and work with their interests at heart.

    This approach has shaped our company culture in ways outside consultants could never simulate. It ensures that each lot of 4-Ethyl-M-Xylene leaving our site reflects not only best practices, but a collective desire to uphold the highest standards throughout the supply chain.

    Moving Forward Together

    Each industry pivot, from eco-friendly reformulations to higher purity thresholds, drives us to refine our processes without losing sight of core strengths. While 4-Ethyl-M-Xylene meets a niche need today, its continued relevance depends on our capacity to stay responsive and transparent in how we manufacture and support the product. Ongoing investment in skilled people and better equipment keeps this specialty chemical available and trusted, batch after batch.

    Direct experience with real use cases—failed polymerizations traced to trace impurities, high-stakes color runs requiring exceptionally clean aromatic feeds, or the challenge of integrating new regulatory limits—pushes us further than any compliance checklist ever could. These lessons, written in hours of overtime and hard-won troubleshooting, have informed a smarter, more agile operation. Each bottle and drum of 4-Ethyl-M-Xylene reflects those stories, tying reliability not to abstract best practices but to years of practical problem solving on the floor.

    We continue to listen, learn, and adapt—committing our resources and expertise to those who depend on accurate and dependable chemical supply to move their own work forward.