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HS Code |
733669 |
| CAS Number | 78-79-5 |
| Molecular Formula | C5H8 |
| Molar Mass | 68.12 g/mol |
| IUPAC Name | 2-Methylbuta-1,3-diene |
| Common Name | Isoprene |
| Appearance | Colorless liquid |
| Boiling Point | 34°C (93°F) |
| Melting Point | -146°C (-231°F) |
| Density | 0.681 g/cm³ at 20°C |
| Flash Point | -48°C |
| Vapor Pressure | 558 mmHg at 20°C |
| Solubility in Water | Insoluble |
| Odor | Petroleum-like |
| Stability | Stabilized with inhibitor (commonly TBC) |
| Refractive Index | 1.409 at 20°C |
As an accredited 2-Methyl-1,3-Butadiene [Stabilized] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 500 mL amber glass bottle with a secure cap, labeled "2-Methyl-1,3-Butadiene [Stabilized]," for laboratory use. |
| Shipping | **Shipping Description for 2-Methyl-1,3-Butadiene [Stabilized]:** Ships as a flammable compressed gas under UN2396, 2.1 hazard class. Must be stabilized for transport. Package in approved cylinders/tanks, protected from heat and ignition sources. Label as flammable gas and follow all DOT and international transport regulations. Keep away from oxidizers and store in well-ventilated areas. |
| Storage | 2-Methyl-1,3-Butadiene [Stabilized] should be stored in tightly closed containers in a cool, well-ventilated, and fireproof area, away from heat, sparks, open flames, and incompatible substances such as oxidizers and acids. Keep it out of direct sunlight. Containers should be properly labeled, grounded, and protected from physical damage. Follow all relevant safety regulations and inspect for leaks regularly. |
Applications of 2-Methyl-1,3-Butadiene [Stabilized] in Industrial Manufacturing2-Methyl-1,3-Butadiene [Stabilized] serves as a key monomer and intermediate in the synthesis of high-value industrial and specialty products. Our manufacturing base delivers this raw material to enable trusted processes in elastomer manufacturing, specialty adhesives, advanced coatings, agricultural chemical synthesis, and resin technologies. 1. Synthetic Rubber Production for Tire and Conveyor Belt ManufacturingIndustrial facilities use 2-Methyl-1,3-Butadiene [Stabilized] as a primary monomer for polyisoprene and polybutadiene copolymers, especially in automotive and conveyor belt applications. Its structure enhances elasticity and abrasion resistance in finished elastomers. The raw material enters at the polymerization stage, undergoing controlled addition to emulsion or solution processes. Downstream producers formulate blends tailored to load-bearing, rolling resistance, and dynamic performance specifications for heavy-duty tire tread compounds and high-performance conveyor belts. End-users require reliable mechanical properties under extreme conditions, ensuring long lifecycle and low maintenance costs for fleets and industry operators. Industry compliance standards
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2. Adhesives, Sealants, and Tackifier Resin FormulationManufacturers in the adhesives and sealants sector depend on 2-Methyl-1,3-Butadiene [Stabilized] as a co-monomer for block and random copolymer-based tackifiers. The raw material is present during hot melt, solution, or emulsion polymerization, where it modulates softening point, adhesion profile, and cohesive strength. Customers integrate its copolymers for PSA tapes, pressure-sensitive labels, and industrial sealants, where strong initial tack and aging resistance are critical. Strict material characterization ensures compliance with customer formulation and application requirements for packaging, assembly, or construction sectors. Industry compliance standards
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3. Specialty Polymer Synthesis in Coatings and Finishes2-Methyl-1,3-Butadiene [Stabilized] provides functional unsaturation for specialty copolymers in performance coatings. Paint and coating manufacturers rely on its structure for crosslinkable and UV-curable resins, optimizing flexibility, impact resistance, and surface adhesion. The monomer enters the pre-polymer or bulk polymerization stages and accommodates grafting with acrylate or styrene partners, supporting high-performance finishes on metals, plastics, and textiles. Coating processors require consistent monomer reactivity and purity, verified by our in-house GC and NMR QC protocols, to minimize batch-to-batch variation in downstream processes. Industry compliance standards
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4. Pesticide and Agricultural Intermediate SynthesisThe agricultural chemical industry uses 2-Methyl-1,3-Butadiene [Stabilized] as a building block in the synthesis of herbicide and insecticide intermediates. The raw material provides a suitable diene platform for Diels–Alder and other cycloaddition reactions, yielding ring systems or side-chain-modified compounds for further functionalization. Close control of input material during batch reaction ensures safety and reactivity, directly affecting the purity and activity of the resulting active ingredients. Synthesis under validated conditions supports traceability and meets the documentation needs of agrochemical registrants. Industry compliance standards
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5. Technical Resin and Elastomeric Compound ManufacturingTechnical resin processors select 2-Methyl-1,3-Butadiene [Stabilized] to introduce controlled unsaturation and adjust rheological properties in specialty elastomer blends. The monomer supports hydrogenated and specialty block copolymer production for oil and chemical resistance, impact modification, or automotive thermoplastic elastomers. Our supplied material consistently meets low inhibitor and high alpha-purity requirements, aiding copolymerization efficiency and facilitating precision tuning during reactive extrusion or bulk blending. Quality control verification ensures stable mechanical and thermal performance in finished resins supplied to OEMs and converters. Industry compliance standards
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From the moment you step onto our plant floor, you can feel the movement of chemistry shaping raw materials into the building blocks that drive industrial growth. 2-Methyl-1,3-Butadiene [Stabilized], recognized in the industry as isoprene, plays a big role in that transformation. Every drum, every tank that holds this liquid runs through our hands, and each batch tells its own story. We see how production challenges vary from week to week — temperature swings, pressure changes, and demands for tighter purity ranges. Real workers are watching for more than purity specs; we’re watching for changes in color, trace odor, challenging moisture content, and surprises that don’t show up on order sheets. That day-to-day experience gives a unique perspective far beyond what a spec sheet supplies.
We produce 2-Methyl-1,3-Butadiene by targeting high yields and reliable consistency without cutting corners. The stabilization process stands out as one of the areas we focus most. The raw, unstabilized isoprene can easily polymerize or react unpredictably under normal handling. In our production environment, adding a stabilizer keeps it safe and reliable, especially for large volume storage or long-distance shipment. There’s no shortcut here: the balance must remain precise. We track downstream applications and know that instability starts causing process interruptions, clogs, or even safety incidents. Real factory consequences follow, whether in the synthesis of polyisoprene rubbers, chemicals, or scents.
On our lines, isoprene takes a liquid form, stabilized and delivered in clean, sealed drums, ISO-tanks, or bulk containers. Our staff double-checks every shipment, confirming the solution remains clear, without particulates or haze. Not every supplier maintains strict vigilance, so quality control at this stage matters. Impurities affect vulcanization and set off chain reactions that echo through the downstream process. A laboratory test will catch the big stuff, but it’s the seasoned operators who spot subtle changes long before they reach a customer’s reactor.
We witness first-hand the scale of global demand for stabilized isoprene. Most demand funnels directly into the manufacture of synthetic rubbers, especially polyisoprene — the base for everything from medical gloves to high-performance tires. Unlike butadiene or regular diene monomers, the methyl group on isoprene brings subtle improvements in flexibility and performance. Customers in the tire industry look for batches that process predictably, resisting premature cross-linking or impurity-driven aging. Medical device makers prize predictable polymer chains and low-odor feedstocks. In adhesives, our stabilized isoprene keeps formulations from gelling, allowing precise tuning of tack and elasticity.
There’s a unique tension inside every tank of 2-Methyl-1,3-Butadiene: its high reactivity means it wants to polymerize at the first opportunity. We see, through direct experience, just how much difference careful stabilization makes. Over the years, we've tightened filtration, standardized inhibitor doses, and introduced redundant checks on polymer traces. Every time we adjust our process, the downstream feedback becomes more positive — fewer blockages, longer shelf life, easier tank unloading, and better batch reproducibility. In contrast, unstable shipments may clog equipment, drive up waste, or force time-wasting re-dilutions. That’s not a theoretical risk. We see and fix those problems, drawing from lessons that only a manufacturer learns from continuous, hands-on production.
Colleagues often ask why 2-Methyl-1,3-Butadiene offers a performance edge. Its closest cousin, 1,3-butadiene, lacks the methyl group, making its resulting polymers less elastic and harder to process for some applications. The unique structure gives our product higher resilience and more natural rubber-like properties. Unstabilized isoprene is out there, but experiences show greater hazards in storage, more rapid color change, and formation of insoluble gels. Customers who move from unstabilized to our stabilized option report fewer line stoppages, better flow, and easier blending. For anything medical or critical — think baby bottle nipples and surgical tubing — this consistency transitions from a production detail into a matter of regulatory compliance and brand safety.
On the ground, model distinctions come down to inhibitor level, purity, and handling characteristics. Our standard stabilized model carries a carefully measured inhibitor content, selected to match long hauls but minimize interference during downstream processing. Our operators monitor lots that approach the higher end of purity, with GC results keeping isoprene content above 99 percent. Water levels, usually reported well under 100 ppm, show as dry, clear liquid in everyday factory work. We maintain color control, as measured by APHA or Pt-Co standards; batches with shifting colors usually trace back to storage errors or unexpected impurity feed-in, and those drums never leave our warehouse. These are not abstract targets but practical checkpoints that prevent small slip-ups from snowballing into major recalls or lost output.
We’ve learned that every small variation in our product can translate to hours lost in downstream factories. On an ordinary Tuesday, an off-spec shipment in the die polymer area caused production delays throughout a customer’s entire week. Their operations manager called us, we tracked the issue, and found a cold-storage miscalculation had caused a jump in micro-polymer content. Our conclusion: tight monitoring on our end immediately removes risk for everyone who touches the drum later.
Synthetic rubber lines especially need careful attention. Too much stabilizer, and polymerization stalls. Too little, and gelling happens mid-line. We’ve tweaked stabilizer levels by a fraction, learned how the flow changes, and updated our SOPs to reflect what we see, not just what a textbook tells us. All these adjustments make our product more reliable, saving real time and cost for the end user, while translating into higher long-term output for everyone.
Open communication with buyers and plant engineers closes the loop on every batch. Technical feedback shapes how we operate, and no two industries weigh priorities the same way. For tire makers, a small boost in lot homogeneity cuts significant off-spec waste and keeps automated robotics on tempo. For customers producing food-contact elastomers, we focus sharply on inhibitor identity and trace aromatic contaminants — what works in one environment might disqualify a batch in another. Medical and pharmaceutical sectors share a collective focus on the removal of potential allergens and labeled impurities, so we segment production lines and elevate batch records accordingly.
We appreciate how our stabilized 2-Methyl-1,3-Butadiene offers more than a basic monomer — it solves problems that affect worker safety, product performance, and regulatory compliance. Simply selling a molecule doesn’t deliver the same results as controlling the full production, stabilization, filling, and quality check processes ourselves. We see the improvement in fewer customer complaints, better repeat orders, and years of collaborative progress.
From a manufacturer’s angle, large-scale 2-Methyl-1,3-Butadiene presents inherent risks. Our operators receive ongoing training on handling volatile organics, not because of a regulatory checkbox but because the risks are real. Unstabilized material handled without care can spark rapid polymerization, overpressure, or even hazardous releases. Stabilization cuts risk for employees, improves transport flexibility, and acts as an extra safety net. Safety teams conduct routine drills with both chemical and process hazards in mind. These aren’t just industry standards—they are critical practices that prevent accidents.
On the rare occasions incidents occur — like an unexpected temperature spike during bulk transfer — we immediately run incident analyses and return findings to production for immediate process update. Every member of our team understands how direct their actions are to the safety of everyone downstream.
Market swings and supply bottlenecks push us to keep steady supply and consistent specification. Feedstock purity, price fluctuations, and downstream user pressure challenge daily operations. Our team manages partnerships with base material suppliers, sometimes adjusting schedules weekly to keep customer deliveries on track. We draw from lessons learned during sharp market changes — such as the increased demand post-pandemic for medical-grade elastomers, where our isoprene fed much-needed glove and tubing lines. Our stabilization protocols flex to meet those needs.
Predictions about just-in-time delivery and tight inventory don’t always play out in the real world. Shift delays, transportation slowdowns, or regulatory checks lengthen holding times. Thus, the stabilizer package isn't a nice-to-have but a requirement for business continuity. After years of fielding calls about stuck tanks or aged cargo, we know our stabilization work is not just about technical performance but fulfilling a promise: the product you need, ready and safe to use, no matter the logistics tangle.
Continuous improvement saturates our daily work with 2-Methyl-1,3-Butadiene [Stabilized]. Operators suggest refinements on stabilizer dosing, transfer temperature windows, or drum filling speeds. We answer customer survey feedback, cross-analyze batch logs, and work with auditors who track everything from lot traceability to air emission footprints. Over time, these cycles result in cleaner batches, tighter specs, and shorter response times to market changes. Our in-house chemists test new stabilization compounds and keep close ties with regulatory changes such as REACH or TSCA updates. Changing a process in a real chemical plant never happens overnight, but ongoing adjustments keep us ahead of new market and compliance demands.
We adjust our routines based on real-world testing — sometimes a small tweak in inhibitor selection means better results for customers making chlorinated derivatives or advanced adhesives. Each success here comes from blending hands-on plant experience with ongoing R&D, not following a stale industry formula.
Looking across the next decade, we keep a sharp eye on changing chemical safety regulations and sustainability mandates. More buyers demand full traceability for each load, stretching back from finished elastomer to the very isoprene drum. We meet those needs by collecting detailed production records and validating stabilizer sources and content through batch chromatograms. Our environmental and safety teams push for better emissions controls and look for ways to reduce waste streams at every stage. New stabilization blends are tested for toxicity, eco-toxicity, and residual monomer leaching, not just yield or cost.
Pressure mounts for lower-inhibitor monomers, fewer side chemicals, and reduced energy use in production. We work with industry groups, participate in best practice forums, and share operational data — balancing production realities against new targets for employee safety and environmental responsibility. With every regulatory cycle, we improve documentation and batch traceability, giving customers new levels of transparency from raw material receipt to outbound shipment.
Plenty of stories circulate about exotic process tweaks or miracle batches that raise quality through the roof. In day-to-day production, improvement comes through hard work and steady attention to detail. Blending stabilized 2-Methyl-1,3-Butadiene involves precise temperature control, careful inhibitor metering, and rigorous lot segregation. Rumored shortcuts or untracked substitutions just lead to batch failures or unhappy customers. Over years, we see that the healthiest growth follows strict adherence to quality protocols, timely maintenance, and regular process audits. Workers bring observational skills and hard-won experience that no automated system fully replaces.
Academic write-ups may praise a perfect stabilization curve or crystal-clear chromatograms, but on our lines, we manage actual drums, time limits, and varied customer requirements. The value of our stabilized isoprene comes as much from practical rigor as from starting purity or theoretical chemistry.
As feedback loops have grown tighter, we build production schedules around customer expectations, not just available time slots. Advance contract buyers wait for batch reserves from us, confident that long-term consistency means today’s material will match what they received two years ago. Emergency buyers call for rush lots, knowing we hold redundant stock and ready transfer teams.
New users sometimes test our stabilized vs. unstabilized lots side by side, and differences stand out. Stabilized isoprene pours clearer, stays within viscosity requirements, and gives more predictable polymer characteristics. Our support staff translate years of experience into customer assistance — from pump selection to storage life estimates, there’s rarely a question outside our scope.
Every batch of 2-Methyl-1,3-Butadiene [Stabilized] leaving our plant carries with it thousands of hours of process engineering, troubleshooting, and transparent communication. We measure progress not in theoretical yield boosts but in fewer customer disruptions, cleaner audits, and facility teams who trust every drum they receive. As the world leans harder on high-performance elastomers, medical components, and technical adhesives, we meet those challenges with proven, hands-on solutions.
Our own people — the supervisors, operators, chemists, and logistics teams — see and shape every molecule that passes through our lines. The story of stabilized isoprene is not abstract advantage or copy-paste claims; it is the work of generations learning from each step, passing along improvements, and responding directly to the realities of a changing market. That experience, rooted in making and moving tens of thousands of tons of critical chemical, is what sets our 2-Methyl-1,3-Butadiene [Stabilized] apart.