Anhui Liwei Chemical Co., Limited
Products

2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol]


    • Product Name 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol]
    • Alias BAK-211
    • Einecs 401-720-1
    • 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

    182964

    Cas Number 6807-17-6
    Molecular Formula C21H26O2
    Molecular Weight 310.43 g/mol
    Appearance White to off-white powder
    Melting Point 167-170°C
    Solubility In Water Insoluble
    Density 1.17 g/cm³
    Synonyms 4,4'-Methylenebis(2,6-dimethylphenol); 2,2'-Methylenebis(4,6-dimethylphenol)
    Purity Typically >98%

    As an accredited 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, opaque 100g plastic bottle with screw cap; printed label displays chemical name, CAS number, hazard symbols, and handling instructions.
    Shipping **Shipping Description for 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol]:** Ship in tightly sealed, labeled containers, protected from light, heat, and moisture. Handle as a stable, non-flammable organic compound, compliant with local regulations. Avoid contact with incompatible materials. Ensure proper documentation and use secondary containment for bulk transport to prevent leaks or spills.
    Storage 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] should be stored in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizing agents and acids. Keep the container tightly closed, protected from moisture and direct sunlight. Store in a chemical storage cabinet, clearly labeled, and ensure proper secondary containment to prevent spills or leaks.
    Free Quote

    Competitive 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] prices that fit your budget—flexible terms and customized quotes for every order.

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    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol]: A Manufacturer's Insight

    Understanding the Backbone of Modern Polymer Additives

    We have spent decades refining the production of 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol], commonly referenced in industrial circles for specialized antioxidant and stabilizer applications, particularly in plastics and resins. Working with this compound day in and day out, our team has watched it earn its reputation for high performance—specifically, in extreme processing conditions where other phenolic antioxidants degrade or show inconsistency. Technicians on the shop floor often remark how seamlessly it melts and disperses, a direct result of our controlled crystallization and rigorous purity standards. Organic synthesis does not leave much room for error, and attention to molecular uniformity goes well beyond marketing—every batch needs to perform to spec, or downstream users will feel the impact in device failures or discoloration.

    Model and Specifications Born from Practical Application

    Suppliers often rattle off molecular weights or melting points, but these statistics mean very little until put to the test in real extrusion or molding lines. Our standard model, manufactured for high-performance processing, features purity levels exceeding 99%. Lab techs monitor for trace metallic or halogen contamination because even minor residues can catalyze yellowing or cause other unpredictable issues in polycarbonates or polyesters. Granule size plays a role in how quickly and cleanly the antioxidant incorporates into base polymers, especially in high-output compounding machinery. Instead of overemphasizing broad technical tables, feedback from customers—film producers, cable insulators, and industrial resin houses—shapes the product lots and tailoring of granulation, which improves reproducibility in every cycle.

    Advanced process control distinguishes consistent batches from inconsistent ones. Our plants automate key steps including temperature ramping and pH control during the condensation process, ensuring that both 2,2' and 4,6 isomeric forms remain within strict limits. We’ve held our own production up to third-party chromatography data, and reject entire lots if even trace side products threaten polymer clarity or odor neutrality. In high-end wire sheathing or optical disk resins, even one-off deviations can knock product lines offline, so QC doesn’t rely on the average but the most demanding statistical tolerances.

    Hands-On Experience with Diverse Polymer Systems

    Processors working on PVC, ABS, or engineering plastics see the value of 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] in stabilizing against oxidative breakdown. Situations arise every year where a legacy additive fails to keep pace with hotter, faster line speeds. Ours does not just extend shelf life but holds up in flame retardant systems, high-impact applications, and environments subject to UV exposure. We have observed how migration resistance preserves clarity in high-end films and fibers—important when end users will not tolerate haze or tint in clear applications.

    No theory replaces the experience of running large lots and observing color retention after months of weathering. Some antioxidants offer good initial protection but form colored by-products; ours was chosen repeatedly because it preserves both physical integrity and optical quality beyond the standard lifespan. In downstream compounding, line workers notice fewer instances of hopper fouling or screw buildup, results stemming from tight control over impurity profiles. Plant audits by clients—engineers who live and breathe their lines—often dig into these issues, and our track record supports trouble-free incorporation across a mix of technologies, from injection molding to film blowing.

    Why Purity and Consistency Matter in Performance

    Many buyers underestimate the compounding challenges of integrating specialty additives into global production lines. One failed run with a substandard antioxidant can waste hundreds of thousands in raw plastics, line cleaning, labor, and re-inspection. Our years in the field have taught us that antioxidants like 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] must perform under both controlled and challenging, variable conditions. Fluctuations in granular size or residual solvent content quickly translate to uneven mixing, slow liquefaction in melt processes, or subtle performance failures visible only after months on the shelf.

    Key users in the energy cable sector have not only specified our product for its oxidative stability but have pushed us to improve batch documentation and trace analysis. In return, we log every furnace, kettle, and filter run, implementing a batch tracking system tied to real-world performance data. Defective product recalls can damage reputations at both the chemical and brand-owner level. Our focus on maintaining below-threshold impurity levels, especially for compounds reacting in polycarbonate and urethane systems, ensures converter complaints remain nearly nonexistent.

    Practical Application in Flame Retardant and UV Stable Systems

    Across the plastics industry, cost-pressured production managers rarely tolerate marginal performance. Our 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] exhibits outstanding resistance to thermal discoloration in polyolefin and PVC cables designed for building safety compliance. Years ago, a customer brought us failures—yellowed insulation after one season of real-world use. Once we adjusted their masterbatch with our antioxidant, subsequent test cycles produced far cleaner results, even at elevated temperatures.

    Films, sheets, and fibers containing optical-grade plastics gain distinct advantages in UV stability. Process engineers tell us that standard phenolic antioxidants introduce slight haze or tint. They often switch to our bis-xylenol grade to achieve sharper clarity. In applications like optical disks, medical tubing, and specialized food-contact packaging, where end-users scrutinize color and performance, repeatable transparency and non-migratory properties make all the difference. Our fully integrated process—extending from base chemical synthesis through granulation—means minimal cross-contamination and secure product identity.

    Distinct Differences That Set Our Product Apart

    Those who switch from conventional antioxidants often start by looking for a fix to ongoing processing problems: unwanted haze, colored streaks, physical degradation, or difficult extrusion. Our product’s backbone differs in both isomeric balance and impurity profile. Unlike generic blends from trading companies or facilities where cleaning between campaigns stays inconsistent, our operation keeps production units dedicated, minimizing the risk of costly batch cross-over. Competitors sometimes rely on outside suppliers for intermediates, leading to surprise batch variability or mystery odor sources that show up under stress tests.

    Some processors voice concerns over regulations, especially in food-contact or medical-grade exposures. Four years ago, we responded with a full revision of in-house analytical capabilities—mass spectrometry for residual solvents, plus robust total organic carbon (TOC) screening. As a direct manufacturer, our ability to trace each step means corrective action takes hours, not days. Third-party audits of our output have only reinforced customer confidence. Even customers producing for the most restrictive regulatory markets have found that our bis-xylenol passes both US and European compliance checks without requiring regular product reformulation.

    Field Experiences: Customer Outcomes That Drive Ongoing Innovation

    We work with dozens of polymer converters every month—teams that need to hit high throughput and accuracy, all while keeping failure rates almost invisible. Their feedback shapes the evolution of our product. Not long ago, one large-scale cable manufacturer struggled with batch-to-batch inconsistencies traced to a competitor antioxidant. After integrating our bis-xylenol, daily production reports showed lower scrap rates and less frequent line stoppages. They attributed this to reduced variability in antioxidant flow and rapid melt-in, cutting downtime for cleanouts and rethreading extruders.

    A household plastics company reported significantly improved UV protection and thermal resistance after a trial run with our product, compared to their legacy additive package. Instead of experiencing slow color fade in sun-exposed parts, the plastics maintained initial color even after months of outdoor exposure. Their QC team credited our product’s high purity and controlled isomer ratio. Frequent site visits and collaborative trials have cemented relationships between our application engineers and partner factories, informing tweaks not just to product granulation but also shipping and handling protocols.

    Manufacturing Process and Traceability in Additive Chemistry

    Unlike trading houses, our team controls the entire manufacturing flow—from raw aromatic feedstock to the final granulated antioxidant. We trace every batch with a digital record that not only ensures regulatory compliance but also supports customer troubleshooting and process improvements. Should issues arise down the line, our chemists provide prompt lot-level details: synthesis dates, process temperatures, and post-reaction filtration logs. This level of transparency reassures global partners—especially for mission-critical cable insulation and automotive applications—who cannot afford unexpected downtime caused by unpredictable additive blends.

    Through continual process refinement, our reactors maintain tightly controlled temperatures, residence times, and filtration schedules. Post-synthesis crystallization separates useful product from trace byproducts, and automated blending systems provide tight weight tolerance on every granule shipment. Active monitoring for environmental and worker safety ensures that occupational exposures, waste solvents, and emissions meet and beat all applicable standards, including stringent requirements for chemical production in regions such as the EU or Japan.

    Adapting to Sustainability and Environmental Responsibility

    As environmental auditing tightens across supply chains, most processors want evidence that their additives come from reliable, transparent sources. Our facility implements closed-system solvent and vapor recovery, reducing fugitive emissions to well below regulatory triggers. Process water recycling systems allow treatment and reuse rather than freshwater discharge. Feedback from green chemistry review panels helped us optimize waste management and shrink total chemical consumption per kilogram of product. That way, our customers can demonstrate meaningful supply chain responsibility—especially important for brand owners under consumer and regulatory scrutiny.

    We monitor and report lifecycle impacts, using third-party audits and internal benchmarking to ensure that energy use and greenhouse gas emissions per ton of bis-xylenol keep heading downward. Technical exchanges with specialty users—automotive, electronics, medical and food packaging—continue to push for lower-odor, higher-purity, and more traceable product that aligns with both product stewardship protocols and real-world processing needs.

    Future Directions in Polymer Stabilizers—Customer-Led Innovation

    Demand does not stand still. System upgrades, material shifts, and new environmental regulations constantly challenge additive performance. Our team participates in long-term trials with clients—evaluating molecular tweaks that promise better performance in bio-based or recycled resin streams. Sometimes, established antioxidant packages become too slow or fail at higher-throughput conditions, forcing rethinking of stabilizer design and integration. We respond by integrating new purification steps or resin compatibility tests, always grounded in honest bench trials and feedback from industrial users.

    The next generation of plastics—higher clarity, recyclability, and demanding mechanical properties—will need even more reliable additive chemistry. Our continuous investment in technical support and product innovation means converters working on medical or food-contact parts get assistance with process troubleshooting, regulatory filings, and custom blending. Plant visits from our technical staff demonstrate a commitment to working alongside customers through all phases of integration, scale-up, and ongoing supply.

    Conversations That Matter: Direct Manufacturer-Processor Relationships

    We field hundreds of in-depth technical calls yearly from experienced polymer engineers, R&D scientists, and factory supervisors. Their questions—ranging from melt indices and batch color to root-cause analyses of processing failures—drive us to keep learning and refining. As the direct manufacturer, we can offer real insights, going far beyond generic data sheets. When a supply issue appears downstream, our team does not pass the buck to another supplier. We review logs, initiate joint troubleshooting, and share improvement roadmaps.

    Ongoing dialogue with global partners sparks new ideas for both process and product improvement. Polymer stabilization faces evolving performance targets, and collaborative development—built on years of mutual trust—delivers more than just product shipments. It drives better, more responsible plastics manufacturing worldwide.

    Concluding Thoughts on Responsible Production and Supply

    Producing 2,2'-(2-Methylpropylidene)Bis[4,6-Xylenol] at scale takes more than access to raw materials and reactors. It comes from dedication, hands-on process improvement, and partnerships with users determined to get the most from every polymer run. Every innovation in granulation, every batch audit, and every customer conversation contributes to an additive that not only protects plastics but also advances the integrity and transparency of our supply chain. As global material needs shift, our commitment to quality, traceability, and customer problem-solving will continue to drive how we manufacture and deliver polymer stabilizers built to last.