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1-Eth-1-Ynyl-4-Propylbenzene

    • Product Name 1-Eth-1-Ynyl-4-Propylbenzene
    • Alias 4-Propyl-1-ethynylbenzene
    • Einecs 700-992-6
    • 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

    442004

    Iupac Name 1-ethynyl-4-propylbenzene
    Molecular Formula C11H12
    Molecular Weight 144.22 g/mol
    Cas Number 41177-70-4
    Appearance Colorless to pale yellow liquid
    Boiling Point 245-247°C
    Density 0.909 g/cm³
    Refractive Index 1.544
    Flash Point 91°C
    Solubility In Water Insoluble
    Smiles CCCc1ccc(C#CH)cc1

    As an accredited 1-Eth-1-Ynyl-4-Propylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500 mL amber glass bottle with tamper-evident cap, hazard labels, chemical name, batch number, and safety instructions printed on label.
    Shipping 1-Eth-1-ynyl-4-propylbenzene should be shipped in tightly sealed containers, protected from light, heat, and moisture. It must comply with applicable chemical transport regulations, including labeling and documentation as a flammable liquid. Ensure safe handling procedures, provide appropriate hazard communication, and use secondary containment to prevent leaks during transit.
    Storage 1-Eth-1-ynyl-4-propylbenzene should be stored in a tightly sealed container, away from heat, open flames, and direct sunlight. Keep it in a cool, dry, and well-ventilated area, separate from incompatible substances such as strong oxidizers. Properly label the container and ensure it is stored at room temperature, away from moisture, to prevent decomposition or hazardous reactions.
    Application of 1-Eth-1-Ynyl-4-Propylbenzene

    Applications of 1-Eth-1-Ynyl-4-Propylbenzene in Industrial Manufacturing

    As the direct manufacturer of 1-Eth-1-Ynyl-4-Propylbenzene, we support a select group of industries with this high-purity aromatic intermediate. On this page, we present its downstream application scenarios where formulators rely on stable supply and precise handling. Each use case highlights compliance, formulation ratios, downstream process introduction, and characterization of end products based on verified commercial practice.

    1. Functional Additive in Specialty Lubricant Formulations

    This compound serves as a functional aromatic additive in the formulation of high-performance lubricants used for industrial and automotive equipment. Chemists use it to fine-tune viscosity, enhance solvency, and improve high-temperature oxidative stability, especially in environments exposed to thermomechanical stress or where formulated lubricants must meet extended drain intervals under heavy loads. The aromatic structure participates in base oil modification, delivering balance between thermal resistance and seal compatibility.

    Industry compliance standards

    • ASTM D4485 (Performance of Engine Oils)
    • API SN/CF and ACEA C3 standards
    • REACH Annex XVII for chemical safety in lubricants
    • OECD Guidelines for Testing of Chemicals for lubricant toxicity

    Typical usage ratio

    • 0.5% – 2.0% w/w, adjusted based on the type of base stock and target property modification for heavy-duty or high-temperature applications.

    Downstream process integration

    • Blend this additive into base oil during the additive incorporation phase, using continuous or batch low-shear mixing typically below 55°C to prevent premature degradation, following direct metering and inline QC validation before final blending with functional packages.

    Final product types

    • Hydraulic fluids for industrial presses
    • Synthetic engine oils for commercial fleets
    • High-viscosity gear lubricants
    • Compressor oils for turbine systems

    2. Intermediate for Fine Chemical Synthesis in Electronic Chemicals

    Process engineers utilize this aromatic alkyne derivative as a key intermediate in multi-step synthesis for certain electronic-grade chemicals, notably precursors in the production of organic semiconductors and photoresist monomers. The controlled reactivity of the ethynyl group allows for precise coupling reactions under palladium-catalyzed conditions, yielding performance materials for microelectronic patterning.

    Industry compliance standards

    • SEMI C37 Grade Standards (Impurity limits for Organic Chemicals in Electronics)
    • IATF 16949 for quality management in electronic component supply chain
    • RoHS Directive (lead and heavy metal restrictions)
    • IEC 62474 (Material Declaration for Products of and for the Electrotechnical Industry)

    Typical usage ratio

    • Stoichiometric equivalents relative to coupling partners (often between 0.95 and 1.05 molar ratios); adjusted for yield efficiency in batch processing for electronics precursors.

    Downstream process integration

    • Dosed into the reactor during the organometallic coupling or cyclization stage, following solvent charging and in the presence of catalyst complexes, under inert gas to avoid side reactions. QC includes NMR and GC-MS assays on intermediates before subsequent purification.

    Final product types

    • Photoresist monomers for semiconductor lithography
    • Organic semiconductors for thin-film transistor backplanes
    • Specialty electronic coatings
    • Chemical vapor deposition precursors for OLED fabrication

    3. Component in High-Performance Resin Modifier Production

    Polymer chemists add this ingredient during the synthesis of specialty resin modifiers, especially for thermosetting resins that require enhanced crosslinking density and chemical durability. Its alkyne functionality enables efficient introduction into resin backbone structures, leading to epoxy and polyurethane systems with improved resistance to solvents and temperature cycling, tailored for advanced composite materials.

    Industry compliance standards

    • ISO 9001-certified resin manufacturing practices
    • REACH SVHC compliance for new resin components
    • UL 94 (Flame classification of plastics materials)
    • EN 14582 (Determination of halogen content for composite resins)

    Typical usage ratio

    • 1.0% – 4.0% as a weight percentage of total monomer mass, with level optimized based on targeted resin toughness and crosslinking degree.

    Downstream process integration

    • Co-reacts with base monomers (e.g., bisphenol-A or polyols) during prepolymerization steps in sealed kettles, typically under nitrogen and controlled temperature ramps. Batch QC checkpoints involve gel permeation chromatography and FTIR monitoring of incorporation degree before hardener or isocyanate addition.

    Final product types

    • Enhanced epoxy resin matrices for carbon fiber composites
    • Polyurethane sheets for chemical process equipment
    • Insulating coatings for electrical encasements
    • Impact-resistant specialty adhesives

    4. Starting Material for Fragrance Ingredient Synthesis in Industrial Aromatics

    Downstream fragrance chemical manufacturers implement this compound as a starting material in the synthesis of complex aromatic compounds via Friedel-Crafts alkylations and subsequent functional group manipulations. Controlled use enables production of high-volume fragrance intermediates, which contribute to the scent profiles of detergents, cleaning agents, and air care products with sustained volatility and distinctive aromatic notes.

    Industry compliance standards

    • IFRA Global Fragrance Standards for industrial ingredients
    • EU CLP Regulation (Classification, Labelling, and Packaging of Substances)
    • Good Manufacturing Practice (GMP) ISO 22716
    • US EPA TSCA Section 8(b) Listing (for new industrial fragrance molecules)

    Typical usage ratio

    • Yield-limited starting charge, typically 3–7% by weight of the total reaction mass, calibrated to selective alkylation and subsequent downstream transformations in annual fragrance campaigns.

    Downstream process integration

    • Introduced at the primary aromatic alkylation step, followed by distillation and fractionation for purity control, and tracked with GC-MS for isomeric purity before being funneled to final etherification, oxidation, or esterification sequences.

    Final product types

    • Fragrance intermediates for surfactant-compatible scents
    • Industrial air freshener bases
    • Cleaning product aromatic additives
    • Detergent grade fragrance oils

    5. Advanced Co-monomer in High-Barrier Polymer Packaging Materials

    Materials engineers in barrier packaging introduce this compound as a specialty co-monomer to achieve controlled aromatic content and increased rigidity for films and multilayer laminates. Its chemical structure contributes to improved barrier attributes against solvents and oxygen, extending shelf life for sensitive industrial and pharmaceutical goods. Processing windows require precise temperature and mixing control to ensure homogeneous copolymerization alongside core monomers.

    Industry compliance standards

    • EU Regulation No 10/2011 (Food Contact Plastics)
    • FDA 21 CFR 177.1520 (Polymers for packaging)
    • ISO 11607 (Packaging for terminally sterilized medical devices)
    • EN 868 (Packaging materials and systems for medical devices)

    Typical usage ratio

    • 0.3% – 1.1% by weight in the copolymer mix, adjusted for target oxygen and solvent barrier performance as quantified by MOCON and gravimetric testing.

    Downstream process integration

    • Metered into extrusion reactors as a minor co-monomer feed during reactive extrusion with main polyester or polyamide monomers. Inline viscosity adjustment and off-gas testing are performed to validate monomer conversion rates.

    Final product types

    • High-barrier flexible films for pharma packaging
    • Laminated industrial drum liners
    • Sterile medical device wraps
    • Specialty pouches for chemical reagents
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    Certification & Compliance
    More Introduction

    Introducing 1-Eth-1-Ynyl-4-Propylbenzene: A Perspective from the Factory Floor

    What Sets 1-Eth-1-Ynyl-4-Propylbenzene Apart

    We take pride in making 1-Eth-1-Ynyl-4-Propylbenzene right in our own production halls, watching every step from raw feedstocks to finished product. Unlike more straightforward aromatic compounds, this one brings a distinct ethynyl group paired with a propyl branch on the benzene ring, creating a chemistry few competitors offer. Our daily experience shows that these modifications boost its utility for demanding synthesis steps in advanced polymer work, agrochemical innovation, and the synthesis of specialty materials that call for both stability and functional handle points.

    We oversee the process from the tuning of catalyst bed temperature to the final high-vacuum distillation. The selection of the starting materials and the close attention to hydrogenation steps make all the difference. Over years of tweaking batch sizes and working through maintenance challenges, we've hit a consistent purity that meets the strict needs of high-volume users. The process itself forces us to watch for isomerization, possible cross-couplings, and side-product formation, all of which depend heavily on operator skill and reaction monitoring—not just equipment specs.

    Specifications Built from Experience

    Each drum of 1-Eth-1-Ynyl-4-Propylbenzene leaving the plant reflects adjustments made on the shop floor: the solvent exchange to prevent polymerization, flow rates established from past pilot trials, and storage guidelines developed after early storage issues. Our standard product achieves a purity level suitable for both bench-scale laboratory synthesis and high-output industrial applications. The main contaminant, dialkylbenzenes, gets minimized through fractional distillation guided by our in-house custom refractometer. Through dozens of in-process checks, we hit tight lot consistency. The specification sheet only captures some of this story; the rest lives in the routine shut-down and clean-out procedures our crew follows.

    We avoid over-packaging and use containers lined to prevent contamination by atmospheric moisture and oxygen, since previous tests have shown that trace exposure slightly shifts the final polymer properties for customers. On request, we can tailor packaging sizes based on plant throughput as proven in our support for custom material projects. These steps help ensure clients receive the product in the exact state our own R&D would want, with assured traceability from kettle to crate.

    Practical Uses and Real-World Results

    End users of 1-Eth-1-Ynyl-4-Propylbenzene come to us for varied reasons. Custom resin developers praise its functional group tolerance, especially when introducing multiple side chains to improve flexibility or add thermal resistance without compromising melt flow. Our direct conversations with adhesives specialists have underlined how critical the absence of trace metals is for their catalyst sensitivities, and this has led us to add new wash protocols post-reactor run. Agrochemical formulators benefit from the reliability of the terminal alkynyl group, using this handle for constructing new bioactive scaffolds. In practice, we see most demand from those moving beyond first-generation aromatic intermediates, since those molecules lack the chemical flexibility to support unconventional molecular architectures.

    The feedback cycle from manufacturing back through our development group is immediate. On more than one occasion, customer troubleshooting has sparked process tweaks—like boosting the vacuum depth in our distillation train after it was shown to lower byproduct carryover. For applications calling for ultra-low sulfur levels, we have adapted select stages of our synthesis based on customer resin color data, leading to a finer final cut each time.

    What We’ve Learned: Comparisons to Alternatives

    Anyone familiar with the aromatic chemicals market recognizes the gap 1-Eth-1-Ynyl-4-Propylbenzene fills. Comparing this product head-to-head with unsubstituted ethynylbenzenes or simple alkylbenzenes reveals some clear trade-offs. The propyl group changes solubility, viscosity, and even reactivity—details we validate through regular side-by-side testing in our lab. While some producers settle on a general ‘alkylaryl’ offering, our team sees sharp differences in end-use behavior: the unique backbone here reduces crosslink density in resin systems, a trait that can only come from pairing this exact set of side groups. Customers pursuing new polycondensation or coupling approaches often try common styrene or toluene derivatives and hit hurdles with side-product formation or lack of selective reactivity. The extra carbon chain and the ethynyl feature together provide sites for click chemistry not available in standard aromatics—a result borne out in actual iterative product lines we have collaborated on.

    We recognize cost always enters the conversation. Our plant efficiency helps offset the challenge presented by more involved handling steps compared to simpler aromatics. This product’s narrower window for thermal exposure and its tendency to co-react with handling materials places a premium on plant layout and operator vigilance. For all the extra work, the downstream payoff in product performance and fewer rework batches stands out, especially for clients scaling up from grams to tons.

    Challenges Along the Way—And How We Tackle Them

    This is not a molecule that tolerates shortcuts. Since entering production, aging reactions and shelf-life losses forced us to invest in better analytical tools. Moisture and trace metal content especially affect batch-to-batch consistency, so we test at multiple process points using both gas chromatography and mass spec to keep tabs on impurities. One summer, a short-lived equipment seal failure threw off the expected product profile and resulted in a round of reprocessing—lessons that don’t show up in literature but now inform our preventive maintenance schedule.

    Our logistics crew handles the finished product like a living material often susceptible to atmospheric conditions. It’s not just about dry storage, but about moving drums quickly into temperature-stable warehouses and scheduling transport that avoids temperature swings. Feedback from downstream users in high-humidity areas led us to test dehumidifiers along transit routes. Small tweaks, like these, stem from ongoing collaboration and rooted experience. We don’t treat this as a static product but as one that requires ongoing attention, from synthesis through delivery.

    Inside Our Plant: Why Manufacturing Matters

    One detail that’s clear after years of production: knowing the quirks of 1-Eth-1-Ynyl-4-Propylbenzene happens only in the crucible of plant-scale manufacturing. Unlike trading firms, we follow the product’s journey through every pressure swing of synthesis and scale-up. The benefits reach the customer directly, because our process control and troubleshooting are informed by each prior batch’s hard-won lessons. Temperature ramp rates and hold times, solvent selection, and even separator maintenance trace directly to the reliability our customers value. Blending theory with hands-on process design lets us support researchers searching for more than just molecular building blocks; we support ongoing development of functional chemicals that advance new product classes.

    Since we control production, we adjust each batch based on seasonal variations in input lots, alter agitation speeds, and tweak drying steps as needed. There’s no substitute for walking the line, checking the reactor in person, and chatting with veteran operators about changes in product odor, color, or consistency—sometimes these small indicators flag bigger issues long before they show up in final analytical runs. Being the manufacturer, not a broker, anchors our approach in daily reality, and keeps us in direct touch with unexpected challenges and opportunities.

    Innovation Sparked by Customer Collaboration

    The best process improvements come from hearing how end users push boundaries with 1-Eth-1-Ynyl-4-Propylbenzene. Our technical team meets with research chemists, formulation specialists, and production plant managers who leverage this product in everything from new synthetic rubber formulations to specialty microelectronics coatings. Several successful collaborations directly improved our purity targets, helping customers shorten R&D cycles and reduce downstream purification steps. We engage in open feedback with each customer, using their reports on yield shifts, batch color, or viscosity as data for refining our operation further.

    Not every custom request is straightforward. One client in advanced photopolymer design needed an ultra-stable variant free of all halide residues. Meeting this challenge required overhauling our separation process and introducing new filter media, as well as a cooperative exchange with their lab to validate each test run. These joint efforts feed our process understanding, sharpening our analytical quality control and boosting product reliability for broader applications.

    Sustainability Considerations and Ongoing Efforts

    Manufacturing chemicals like 1-Eth-1-Ynyl-4-Propylbenzene in today’s climate demands responsibility—both to our workers and the environment. We continuously evaluate waste reduction during purification: optimizing solvent recycling, capturing off-gases, and minimizing cleaning cycles with in-line filters. Past disposal methods that sufficed a decade ago have been re-examined in light of environmental impact data and evolving regulatory standards. Waste streams are tracked from reactor to effluent tanks, and analysis by our in-house team ensures compliance and adaptability as expectations rise.

    We’ve reduced energy consumption at our distillation stages by tuning equipment set-points and swapping to more efficient heat exchange systems. The result helps lower cost over time while also shrinking our carbon footprint. Our team regards every change as an opportunity for both efficiency and stewardship, without resorting to shortcuts that would risk downstream product quality.

    Supporting Advanced Research and Scale-Up

    From the first kilogram to commercial-scale orders, scale-up runs of 1-Eth-1-Ynyl-4-Propylbenzene show us the full complexity at play. Small lab batches behave differently compared to full-scale reactors, not just in yield, but in subtle shifts in impurity profiles and handling stressors. Our process engineers track each anomaly, adjusting process variables as plant data accumulates. We pass these insights to research clients working on pilot programs, helping them tweak protocols and avoid common pitfalls.

    Our links with academic research labs also spark improvements. Sharing real-world production data helps catalyze better reaction modeling and pilot plant design for up-and-coming teams. Overseeing the transition from bench-top synthesis to multi-ton output builds a wealth of know-how that customers lean on when scaling their own innovations.

    Looking Ahead: Continuous Improvement

    Staying competitive with 1-Eth-1-Ynyl-4-Propylbenzene hinges on relentless improvement. Market needs shift, and so does technology. We’ve moved from manual record-keeping to integrated data systems tracking yield, throughput, and resource utilization for each lot. This lets us spot trends and correct issues before they affect customer supply. On the production floor, new sensors provide finer control of reaction parameters, capturing the subtle process changes that make or break product consistency.

    Incorporating new analytical techniques, such as advanced chromatography and high-resolution spectroscopy, has improved our detection of trace byproducts and sped up troubleshooting. We invest in training not just new hires, but seasoned operators, to keep them sharp on both the science and the craft of production. Each year brings updates to our safety and handling rules, shaped by internal review and external audits.

    Commitment to Quality, Built Through Manufacturing

    Quality in specialty chemicals remains a hands-on pursuit. Each lot of 1-Eth-1-Ynyl-4-Propylbenzene embodies the lessons learned from years of direct production and daily engagement with real-world needs. We don’t treat the product as a static commodity; every new batch gets scrutinized with a blend of scientific rigor and practical insight. Equipment upgrades, operator training, and ongoing user feedback all shape our approach, pushing us to deliver above and beyond procedural compliance.

    This ongoing hands-on stewardship distinguishes us. For every customer receiving a drum, our knowledge base, built through both setbacks and successes in manufacturing, comes along with it. That direct line from synthesis, through handling, to end-use stands as both our challenge and our guarantee—rooted in practice, responsive to change, and always aiming for better.