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

    • Product Name Octadiene
    • Alias 1,7-Octadiene
    • Einecs 211-020-6
    • 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
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    Specifications

    HS Code

    775517

    Iupac Name Octa-1,7-diene
    Molecular Formula C8H14
    Molar Mass 110.20 g/mol
    Appearance Colorless liquid
    Density 0.730 g/cm3
    Boiling Point 121-123°C
    Melting Point -101°C
    Solubility In Water Insoluble
    Vapor Pressure 20 mmHg (at 20°C)
    Flash Point 16°C
    Refractive Index 1.414
    Cas Number 872-05-9

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

    Packing & Storage
    Packing Octadiene is packaged in a 500 mL amber glass bottle, labeled with hazard warnings, chemical name, and lot number for identification.
    Shipping Octadiene should be shipped in tightly sealed containers, away from heat, sparks, or open flames, as it is flammable. Transport under cool, well-ventilated conditions and comply with all applicable regulations for hazardous materials. Use appropriate hazard labels and documentation to ensure safe handling and delivery during transit.
    Storage Octadiene should be stored in a cool, dry, well-ventilated area away from sources of ignition, heat, and incompatible materials such as oxidizers. Keep the container tightly closed and properly labeled. Protect from direct sunlight. Use only approved containers designed for flammable liquids and avoid static discharge by grounding containers during transfer. Store in accordance with local regulations and safety guidelines.
    Application of Octadiene

    Applications of Octadiene in Industrial Manufacturing

    As an established producer of specialty chemical raw materials, we supply octadiene to large-scale industrial customers engaged in demanding downstream processing. Below are the primary industrial segments where octadiene becomes an essential ingredient, along with typical integration practices based on end-user manufacturing standards and process controls.

    1. Polyolefin Elastomer Production

    Octadiene is widely used as a reactive comonomer in the synthesis of advanced polyolefin elastomers, notably in ethylene-octene copolymers. It supports fine-tuning of molecular architecture to achieve targeted flexibility and impact resistance for specialty automotive, wire & cable, and footwear applications. Producers selectively adjust the incorporation rate to influence crystallinity and melt flow characteristics, closely monitoring compliance and process variables at each batch.

    Industry compliance standards

    • ISO 9001:2015 Quality Management
    • ASTM D3900 Polyolefin Elastomer Specifications
    • REACH Annex XVII (EU Regulation for Substance Restrictions)
    • UL 94 Flammability (for electrical grade applications)

    Typical usage ratio

    • 1–12% by weight of comonomer charge, referenced to overall monomer content. Actual feed rate tailored according to target elasticity, hardness, and end-use performance.

    Downstream process integration

    • Direct addition during gas-phase or solution polymerization in continuous plants.
    • Real-time dosing through mass flow controllers to reactor inlet alongside primary olefin feedstock.
    • Integrated batch control with advanced DCS for safe monomer handling and consistent incorporation efficiency.

    Final product types

    • Automotive thermoplastic elastomer sheets
    • Insulation and sheathing for specialty wire & cable
    • High-performance injection-molded shoe soles
    • Impact-resistant film and flexible packaging compounds

    2. High-Performance Adhesive Resin Formulation

    Industrial adhesive manufacturers utilize octadiene as a chain extender and cross-linking agent in the production of hot-melt and pressure-sensitive adhesive resins. Its controlled reactivity benefits advanced formulations requiring strong bonding and thermal stability. Processing lines require strict monomer management and in-process quality assurance to maintain compliance and functional characteristics in the final resin matrix.

    Industry compliance standards

    • ISO 14001:2015 Environmental Management
    • FDA 21 CFR 175.105 (for indirect food contact adhesives, as applicable)
    • GMP requirements for adhesive contact with consumer goods
    • ASTM D1002 Standard Test Method for Shear Strength

    Typical usage ratio

    • 0.3–2% by resin mass, modulated to balance open time, tack, and cross-link density. Exact dosage determined through pre-production pilot trials.

    Downstream process integration

    • Metered monomer introduction during base resin formation under nitrogen blanket conditions.
    • Sequential addition before or during in situ polymer grafting or chain extension steps.
    • Blend compatibility checking with other functional additives prior to extrusion or reactor charging.

    Final product types

    • Automotive and construction hot-melt adhesives
    • PSA tape and label stock
    • Pressure-sensitive graphics and film laminates
    • Consumer and medical device bonding agents (where permitted)

    3. Specialty Lubricant Additive Manufacturing

    In lubricant additive synthesis, octadiene serves as an intermediate for producing custom alkylated or functionalized olefin structures, enhancing viscosity index and oxidation stability in engine and industrial oil formulations. The manufacturing environment demands high-purity feedstock and traceability from raw material intake to finished additive blending, adhering to regulatory and private customer specifications across transportation and heavy machinery sectors.

    Industry compliance standards

    • API Base Oil Interchange/Viscosity Grade Read-Across Guidelines
    • SAE J183 Engine Oil Performance Classification
    • ASTM D4425 Lubricant Additive Screen Test
    • ISO 21469 Hygiene Requirements for Lubricants in Incidental Food Contact

    Typical usage ratio

    • 0.5–4% mass ratio within additive package synthesis, subject to molecular weight targets and desired oil-soluble property modification.

    Downstream process integration

    • Charged at initial reactor feed to undergo alkylation or functional group modification.
    • Post-reaction workup, crude mixture neutralization and fractionation prior to blending with other additive concentrates.
    • Batch documentation and traceability with in-process QC sampling.

    Final product types

    • Engine oil viscosity index improvers
    • Gear oil pour-point depressant additives
    • Hydraulic fluid oxidation stabilizers
    • Heavy-duty machinery lubrication modifiers

    4. Intermediate for Agrochemical Synthesis

    Octadiene is employed in the synthesis of selected agrochemical active compounds and specialty intermediates, particularly in the creation of diene-based building blocks. Fine chemical producers require precise control in reaction conditions, ensuring compositional consistency and compliance with crop protection regulations. Environmental controls, trace impurity management, and batch-specific documentation play vital roles from source to product shipment.

    Industry compliance standards

    • FAO/WHO Food and Agriculture Organization Pesticide Specifications
    • ISO 17025 Laboratory Accreditation for agrochemical QC
    • OECD Guidelines for the Testing of Chemicals (Synthesis, Purity, Stability)
    • REACH registration and dossier requirements for active substance

    Typical usage ratio

    • 2–16% mole fraction, based on downstream product route and reactivity demands. Determined by stoichiometric balance for each target intermediate.

    Downstream process integration

    • Initial purification and verification by GC/MS prior to introduction in multi-step synthesis reactors.
    • Direct feed into diene coupling, cyclization, or metathesis reactions under inert atmosphere systems.
    • Process monitored for conversion rate, impurity profile, and byproduct minimization.

    Final product types

    • Precursor substances for herbicides and insecticides
    • Protected diene intermediates for fungicide synthesis
    • Chemical building blocks for soil treatment formulations
    • Agrochemical formulation agents (not active in field use)

    5. Production of Industrial Fragrance Intermediates

    Specialty fragrance and flavor manufacturers utilize octadiene as a key starting material in the synthesis of complex terpene analogs and aroma intermediates. The diene structure enables selective cyclization and hydroformylation, leading to high-value ingredients. Stringent controls on impurity profiles, allergen content, and batch genealogy ensure these intermediates meet regulatory registration and downstream blending for fine fragrances and consumer aromas.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards
    • ISO 9325: Aromatic Substances – Sampling Methods
    • EU Regulation (EC) No 1223/2009 on Cosmetic Products
    • JECFA (FAO/WHO Food Additive Regulations) for flavor use

    Typical usage ratio

    • Variable, 0.4–8% mole ratio depending on synthesis pathway and yield requirements of the targeted intermediate. Final ratio refined during R&D scale-up batches.

    Downstream process integration

    • Initial monomer purification and isomer separation before use in catalytic reaction vessels.
    • Stepwise conversion by controlled cyclization, isomerization, or addition reactions under monitored temperature and pressure.
    • Downstream distillation, QA testing for organoleptic and analytical conformity.

    Final product types

    • Key intermediates for musk, jasmine, and aldehydic aroma compounds
    • Base molecules for fine fragrance formulations
    • Flavor and aroma precursors for beverage and confectionery sectors (subject to approval)
    • Fragrance additives for personal care and cleaning products
    Free Quote

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    Certification & Compliance
    More Introduction

    Octadiene: Focusing on Consistency, Quality, and Application in Chemical Manufacturing

    Behind Every Batch: Crafting Reliable Octadiene

    We know what it takes to produce octadiene that lives up to the standards demanded by polymerization and specialty synthesis. Octadiene isn’t just another hydrocarbon flowing out of a reactor; making it well means paying attention to purity, isomer ratios, and process efficiency. Every step in our manufacturing reflects decades of experience and continuous feedback from polymer, elastomer, and lubricant formulators. Clients recognize our diene’s stability once it reaches their plants: it keeps reactions predictable and keeps downtime off the agenda. As the producer, not a middleman, we control every step—from refining feedstocks and managing catalyst systems to quality testing, packaging, and logistics.

    Model and Specifications Arise from Application Needs

    Octadiene’s structure triggers unique reactivity, and our plant delivers both 1,5-octadiene and 1,7-octadiene grades. Every run is dedicated to keeping isomer content stable—an essential demand for process reliability. The best-known model for most users is 1,5-octadiene, favored for its usefulness in cross-linking and polymer grafting. Our typical production achieves purity exceeding 98%, with clear reporting of trace impurities. Hydrogen, moisture, and sulfur contents are kept well below threshold levels to support smooth downstream polymerization, as every batch is analyzed before dispatch.

    Clients in elastomer modification, cable insulation, adhesive compounding, and flavor-fragrance intermediates rely on our specs for process integration. Each field pulls different demands from octadiene. In cable insulation, for instance, even tiny impurities can undermine electrical performance and product aging. Quality specs aren’t just bureaucratic paperwork—bad chemistry on our end means higher scrap rates and liability at the plant floor. Our approach sets test intervals tighter than most industry standards, striking issues like peroxide-forming residues and unwanted saturated hydrocarbons. This lets our customers blend, polymerize, or modify with confidence, especially in high-throughput reactors or years-long batch projects.

    Every Drop Has a Job: Applications

    Octadiene’s dual terminal double bonds are more than a molecular curiosity; they let chemists build things not possible with other C8 aliphatics. People use our material in a range of settings: from the world of specialty polymers, where it’s grafted onto polyolefins or serves as a crosslinking coagent, to the fragrances sector, where a well-controlled synthesis opens a path to target molecules using catalyzed cyclizations or selective hydrogenation.

    Our largest volume ships to customers modifying polyethylene and ethylene-propylene copolymers. With octadiene in the mix, these producers tweak elasticity and melt index. Tuning the cross-link density is a game of grams and reaction rates, not gut feeling—a fact we respect by holding batch-to-batch variation very low. Our teams visit customer sites to help with dosing strategies, offering practical ideas for storage and pump handling under local conditions. Not every factory manages temperature excursions or material handling in the same way, so technical support forms part of what we see as proper manufacturing.

    Lubricant formulators find octadiene useful for fine-tuning viscosity indices and pour point depressant packages. Specialty intermediates, like those used in the flavor and fragrance sector, rely on octadiene’s available double bonds for controlled reactivity under mild conditions. Here, every unwanted isomer or contaminant can trigger byproducts, meaning lower downstream yield for our customers. For anyone wondering about the edge this material brings: look at halogen-free crosslinking in wire insulation, durable pressure-sensitive adhesives, and even some synthetic flavors that depend on precise catalytic additions.

    What Set Us Apart: Manufacturing Practices Driving Results

    Our history as a direct producer—not a repackager or trader—lets us iterate and improve. Years spent running diene units at scale taught us how to tweak distillation protocols and fine-tune catalysts for different feedstock slates. Reaction control isn’t simply a checklist; you can hear the difference in a column under good run versus a lazy one: fewer alarms, tighter fractions, and better stability. Our feedback loop from customer returns or complaints isn’t filtered through multiple hands, so every pain point becomes an engineering challenge tackled the way only a manufacturer can.

    When we talk about achieving consistent cloud point, color, and shelf life, we’re not trading buzzwords. Add a few ppm of a certain impurity and a high-voltage cable shipment sits unused for weeks. Miss a sulfur limit and a flavor manufacturer gets a batch that nobody can redeem. To avoid these disasters, our in-house analytical labs—staffed by chemists working with real plant operators, not just their peers—run real-time monitoring alongside offline, high-resolution tests. These practices, embedded in our daily operations, aim to stop minor problems before they swell into disasters beyond the plant gate.

    Working with Customers: Problem-Solving in the Real World

    Sending datasheets isn’t enough. Our engineers visit, diagnose bottlenecks, and suggest fixes when a line isn’t running right on our product. In polymer extrusion, a shift in isomer profile of just a fraction of a percent can throw off extrusion pressure and die-swell properties. Clients ring us when things aren’t going to plan—sometimes it’s not the octadiene itself, but how it’s stored or pumped. We’ve seen cases where a change in bucket type or a drain valve prevented moisture pick-up, which in turn stopped foaming problems downstream.

    We believe in building practical chemistry around our customers’ needs. Heavy downtime eats into margins, and having people who speak both production shop-floor language and chemical engineering makes a difference when lines stop. Our own technical staff walk line setups and review sampling protocols, helping with ideas no “remote consultant” could offer. We can share best-case storage setups to minimize peroxide buildup, and even offer free onsite training for handling hazardous hydrocarbons. Product is only part of what we deliver; responsiveness and follow-through matter as much as any certificate of analysis.

    What Makes Octadiene Different from Other C8 Hydrocarbons?

    Octadiene’s double bonds at the ends of the chain make it a rare tool in a world of mostly paraffinic feedstocks. Other eight-carbon aliphatics—like octane, octene, or octanol—miss out on these reactive sites. Without end bonds, they don’t unlock the same polymer cross-linking or cycloaddition options. Customers using octene for oligomerization come away frustrated if they expect the same click-chemistry results that octadiene can provide.

    We often field the question: “Why not substitute with 1,7-octadiene or even cyclooctadiene?” Both sound similar in name, yet behave very differently in real-world reactions. Cyclooctadiene’s ring strain and unique geometry influence selectivity—a feature desired in some specialty elastomer syntheses but not in bulk blending. 1,7-octadiene finds use in a narrow set of reactions, such as certain hydrogenation schemes, but most everyday polymer modification prefers 1,5 for its blend of stability and reactivity. Experience on plant floors taught us that raw material swaps rarely deliver savings once secondary impacts and reactivity cascades show up in the process. We advise against assuming two hydrocarbons are functionally interchangeable, as years of customer feedback and lab trials have shown where trouble starts.

    Safety, Storage, and Handing: Lessons from the Shop Floor

    Octadiene, unlike saturated hydrocarbons, needs careful handling. Its unsaturation nudges it toward polymerization, especially at higher temperatures or over long storage times. Our logistics teams test for peroxide and water content before every shipment, as past industry-wide incidents trace back to lax storage protocols. Keeping drums tightly sealed, filled with nitrogen, and away from heat sources stops many problems before they start. We provide real-world guidelines for unloading and in-plant transfer, sharing clear instructions to help avoid leaks or static build-up.

    We’ve responded to plant outages caused by small mistakes—one hot pump on a summer afternoon triggered a runaway reaction in a storage tank abroad. Incidents like these led us to strengthen our technical support, offering site-specific advice from years of plant troubleshooting rather than just repeating standard bullet-point lists. Chemistry is unforgiving with basic errors, and our customer partners depend on us for more than just shipping weight. In return, we gain insight into their risk controls, which feeds back into how we run our own infrastructure.

    Regulatory Compliance and the Real Costs of Standards

    Compliance takes on practical meaning for producers. Getting octadiene into sensitive sectors means living up to strict local and international standards, including those around volatile organic compounds, workplace exposure, and transport regulations. Rather than seeing these rules as paperwork hurdles, we draw on our own compliance audits and third-party certifications to keep products continuously eligible for customers in advanced economies and emerging markets alike. Each regulatory change triggers plant audits, changes in testing intervals, or new documentation practices—direct investments that reduce business risk down the line.

    We prefer transparency over after-the-fact fixes. By granting customer auditors on-site access and supporting supply chain traceability, we earn trust, not just orders. Many of our best clients started relationships by challenging how the product gets made, packaged, and tracked. Rather than push back, we open doors and share our protocols, inviting improvement suggestions. This keeps us ahead as laws change and pushes our own standards up. We encourage customers to do the same with their own suppliers, knowing that pressure up and down the chain breeds long-term value.

    The Value of In-House Research and Customer Co-Development

    Being a direct manufacturer, we operate our own pilot reactors and lab-scale setups to mirror customer processes. Partnership with end users gives us chances to design new isomer ratios, push toward ultra-high purity blends, or test additives for improved oxidation resistance. These projects stem more from listening to on-the-ground process engineers than from desk-bound research alone. We’ve collaborated to create customized formulations that shave time off curing cycles or allow higher throughput in continuous polymerization, solving real bottlenecks.

    Some of the best performance improvements in our octadiene grades arose from side-by-side development with a few innovative customers, who gave us access to their reactors for test runs. We approach these projects as learning opportunities for both sides, helping customers drop unneeded steps or adapt existing lines with little risk. In return, our routines, logbooks, and even batch control logic grow sharper, benefiting future users. It’s not just about selling a chemical—it’s about keeping innovation tangible, not abstract.

    Learning from Setbacks and Choosing Continuous Improvement

    Not every batch leaves the plant in perfect shape. Years ago, we faced a series of inconsistent color and odor issues after switching a distillation feed. Customer complaints arrived before we caught the issue in our own tests, forcing emergency recalls and temporary production stops. The pain stung—the sort that prompts deep internal reviews, new QC hardware, and a ruthless approach to staff training. Today, you’ll find a continuous improvement workshop running somewhere in our facility every month, each driven by data and actual plant events.

    Mistakes didn’t only breed new checks, but pushed us to automate some of the trickiest parts of our process. Installing online chromatographs gave operators instant readings, not hours-late printouts. We brought process and QC chemists closer together, so detection happens earlier and costly fixes decrease year over year. As a result, our customers join a cycle of learning—sharing fair, sometimes tough feedback, helping us keep moving in the right direction.

    Why Stable Supply Chains Shape Real Manufacturing Value

    Running a chemical plant depends on more than reactors and test equipment — it’s about relationships with feedstock suppliers, logistics partners, and the people who show up for night shifts. The reputation of our octadiene depends as much on this web as on the molecule’s properties. Recent years brought disruptions, whether from weather events, logistics bottlenecks, or raw material shortages. Our response hinges on maintaining multiple sourcing agreements, monitoring incoming material quality, and coordinating with haulers to avoid transport surprises.

    Priority goes to keeping shipments reliable, even if it costs more or takes extra footwork. We rarely sell to speculative traders or those pushing batch-to-batch variability onto end users. Instead, our business focuses where supply consistency adds process stability — cable insulation plants, automotive suppliers, or specialty blend facilities with lean inventories. We work with these partners to hold reserve inventory or set up rush-supply programs so their processes don’t grind to a halt if something unexpected hits. These moves insulate our customers from market swings, delivering more than just molecules in a barrel.

    Future Outlook: Staying Ready for the Next Challenge

    Each year brings new challenges for octadiene production and application. Customer demands push us toward cleaner, “greener” processes, calling for lower environmental impact, less generation of off-spec streams, and smarter energy use at all stages. We keep up by investing in process optimization, heat integration, and solvent recovery schemes inside our factory walls. We also watch for opportunities to make the full octadiene value chain—refining, shipping, and handling—leaner and less wasteful. Our aim is to add economic and environmental value together, not in isolation.

    On the customer end, we see clients striving for higher performance blends, novel co-agent systems, or more cost-competitive downstream chemicals. New polymer formulations challenge our process engineers to keep quality controls tighter, with better analytics and clear documentation. Working as a manufacturer lets us shape our lineup, not just respond to markets. This flexibility, along with a commitment to dialogue, forms the backbone of why customers come to us for octadiene year after year.

    Conclusion: Manufacturing More than a Commodity

    Octadiene holds a special place among raw materials for industrial chemists. Whether it’s the nuances of isomeric control, confidence in batch-to-batch reliability, or the partnerships formed over problem-solving and shared growth, we see our job stretching beyond shipping a chemical. As direct producers, we bear daily responsibility for quality and real-world performance. Our standards, built over years in dialog with processors, R&D teams, and hands-on operations staff, continue to raise the bar for what octadiene can deliver. Through open communication, firm technical support, and continuous improvement, we look after customers’ confidence today and invest in better results for tomorrow.