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HS Code |
234165 |
| name | 2-Methyl-2-Butene |
| molecular_formula | C5H10 |
| molar_mass | 70.13 g/mol |
| CAS_number | 513-35-9 |
| appearance | Colorless liquid |
| boiling_point | 38.6 °C |
| melting_point | -140 °C |
| density | 0.653 g/cm³ |
| flash_point | -18 °C |
| structure | CH3C(CH3)=CHCH3 |
| refractive_index | 1.388 |
| solubility_in_water | Insoluble |
| vapor_pressure | 535 mmHg (20 °C) |
As an accredited 2-Methyl-2-Butene 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, tightly sealed, labeled “2-Methyl-2-Butene,” with hazard symbols and safety information prominently displayed. |
| Shipping | 2-Methyl-2-butene is shipped in tightly sealed containers, typically under inert gas to prevent oxidation. It should be stored and transported in a cool, well-ventilated area away from sources of ignition, as it is flammable. Proper labeling, handling, and compliance with relevant transportation regulations are required to ensure safety during shipping. |
| Storage | 2-Methyl-2-butene should be stored in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and incompatible substances such as oxidizers. Use tightly sealed, properly labeled containers made of materials compatible with hydrocarbons. Keep away from ignition sources, and ensure proper grounding when transferring the chemical. Store in accordance with local, state, and federal regulations. |
Applications of 2-Methyl-2-Butene in Industrial ManufacturingAs a specialized producer of 2-Methyl-2-Butene, we supply high purity grades tailored for advanced synthesis in critical manufacturing sectors. The downstream applications presented here reflect the actual utilization of our material in high-value production chains where regulatory compliance, technical integration, and product performance are paramount. Each scenario is selected based on industrial verification and is supported by process-proven expertise. 1. Pharmaceutical Intermediate for Vitamin E SynthesisPharmaceutical manufacturers employ 2-Methyl-2-Butene as a strategic intermediary in the multi-stage synthesis of tocopherol (Vitamin E), particularly in routes involving alkylation and cyclization. The material’s role centers on its selective reactivity, contributing to yield optimization and impurity profile management. Adherence to pharmacopeial requirements and impurity thresholds drives quality control in the active vitamin and supplement market. Industry compliance standards
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2. Agrochemical Synthesis — Active Ingredient Building BlocksWithin the agrochemical sector, manufacturers integrate 2-Methyl-2-Butene as a precursor for specific alkylated intermediates vital to herbicide and pesticide formulation. The compound supports tailored chemical modifications in controlled reactor systems, contributing to selectivity and product consistency crucial for regulatory registration and downstream performance analysis. Industry compliance standards
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3. Polymerization Modifier in Specialty Lubricant ManufacturingIndustrial lubricant producers incorporate 2-Methyl-2-Butene as a chain transfer and branching agent during the synthesis of polyalphaolefins (PAOs) and related synthetic base oils. Its role fine-tunes molecular weight distribution and viscosity profiles, with process monitoring driven by stringent performance standards for lubricants operating under extended thermal and mechanical stress. Industry compliance standards
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4. Fine Chemical Synthesis — Fragrance and Aroma Chemical IntermediatesManufacturers in the fragrance sector utilize 2-Methyl-2-Butene to construct key intermediates for aldehydes, ketones, and musks through controlled selective hydroformylation, oxidation, or alkylation. The raw material integrates at pivotal steps, dictating stereochemistry and olfactive grade consistency, with adherence to global fragrance industry chemical regulation frameworks. Industry compliance standards
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5. Fuel Additive Manufacturing — Antiknock Component SynthesisIn the field of fuel additives, 2-Methyl-2-Butene serves as a precursor for the preparation of tert-amyl methyl ether (TAME), which enhances gasoline octane and reduces tailpipe emissions. The integration process under controlled reaction conditions meets fuel quality parameters, with traceability and consistency monitored as per international fuel standards that govern modern refinery operations. Industry compliance standards
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As we walk the line between the traditional and the innovative in chemical manufacturing, there’s one compound we know inside out: 2-Methyl-2-Butene. At our facility where high-purity hydrocarbons stream from steel reactors to glass drums, this five-carbon alkene holds a core position in a variety of applications that don’t always get the spotlight they deserve. People ask us how this particular molecule distinguishes itself, and we answer not from the perspective of a supplier, but as the team that carefully produces, tests, and ships these colorless, volatile liquids every week.
2-Methyl-2-Butene, or simply 2M2B among those who know alkenes well, does not hide behind a complicated formula. Its structure offers a compact branched geometry—two methyl groups branching at the second carbon along a straight chain. We work with this material in its purest form: distilled, pressure-tested, and quality-checked with every order. Our technical team watches boiling points, water content, and density variations, because even a small impurity can disrupt downstream chemistry. Customers working in organic synthesis, pharmaceuticals, agrochemicals, and fuel additives demand tight specifications, so our internal batch release reports always confirm GC purity to at least 99% minimum, with typical lots reaching even higher. Moisture and residue, persistent issues with alkenes if you aren’t careful, get knocked out through systematic use of drying columns and stainless steel transfer lines.
Not all butenes are the same. We’ve put 2-Methyl-2-Butene side by side with isomers like 2-Methyl-1-Butene and unbranched pentenes to see how reactivity changes. In the lab, our chemists explain how the tertiary carbon center of 2M2B encourages Markovnikov addition and selective alkylation far more reliably than a straight-chain or terminal alkene. This matters in practice—pharmaceutical intermediates don’t tolerate side products, and we’ve seen real headaches on the line when an operator confused a drum of the 1-butene isomer with the target 2-butene version. Downstream, this distinction drives yield and process economy. Blending into gasoline and specialty fuel streams, the difference between isomers becomes clear under octane tests; branched alkenes like 2M2B help elevate performance, while linear analogs don’t deliver the same spark ignition ratings.
We never treat 2M2B like a bulk solvent that can handle rough handling. The material arrives at the customer’s gate packed under nitrogen, free from oxidants and moisture, hugged by steel walls designed for volatile organics. Our logistics team has wrangled with temperature swings, especially in summer months, when vapor pressures climb toward 290 kPa at ambient conditions—requiring pressure-relief valves and flash-arresters even on smaller containers. For bulk deliveries, our supply chain prefers tank trucks lined with compatible polymer seals that resist swelling and breakdown, something no general-purpose equipment would withstand for long. This practical experience in safe handling speaks more than any printed safety data: we take the hazards as seriously as a chemist in a good lab coat takes an unstable peroxide. Our warehouse operators and field drivers receive direct training in alkene-specific risks; we don’t settle for generic chemical handling guidelines that fail to recognize the importance of proper venting and inert gas blanketing.
2-Methyl-2-Butene’s value comes to life in synthetic chemistry. In-house, we’ve seen it used for selective hydration and hydroboration, where it behaves more predictably than lower olefins or more substituted alkenes. Our scale-up chemists point to epoxidation and halogenation reactions that run reliably batch after batch because branched alkenes don’t generate the same mix of regioisomers that straight ones do. Organometallic chemists appreciate that our drums of 2M2B contain so little peroxide or aldehyde contamination, the material moves directly into catalyst preparations without further purification. We’ve played a part in syntheses from vitamins to fragrance intermediates, and sometimes, after many years of customer collaborations, we come across the same name on a patent as in an order form—knowing our product made that work possible.
In another sector, the demand for fuel additives prompts us to review the properties of 2M2B versus alternatives. Our technical team watches how our customers use the molecule in octane enhancers, and we see clear benefits—high volatility, strong knock resistance, and ease of blending—all traced back to both the purity we ensure and the branching in the structure. Linear pentenes become less attractive when reliable combustion is a priority in large-scale blending. In polymer chemistry, 2M2B finds its zone as a chain-transfer agent, bringing efficiencies unmatched by unbranched options. The branch interrupts undesired chain propagation, letting us fine-tune polymer molecular weights without introducing unnecessary contamination or viscosity.
We answer technical questions every week: “Can 2-Methyl-2-Butene replace isoprene?” “How does it stack up to tert-amyl alcohol as a feedstock?” We’ve run those comparisons ourselves. In laboratory hydrogenation work, 2M2B selectively forms isoamyl derivatives without the need for harsh conditions. Alcohols derived from 2M2B resist dehydration better under acid catalysis, which matters for fine chemical manufacturers avoiding byproduct formation. Unlike simple butenes or pentenes, the methyl branching brings stability during storage and transportation; our QC team routinely pulls samples from storage tanks six months out, and the chromatograms remain stable, with no wild spikes corresponding to polymerization or peroxide formation.
On the scale of plant design, we’ve watched process engineers debate between 2M2B and its isomers for alkylation or dimerization. Our feedback draws on every batch we’ve handled—2M2B generates fewer high molecular weight tars in continuous alkylation units, cutting downtime and cleaning costs. For those managing distillation columns in ethylene and propylene recovery, we’ve seen them note that the predictable boiling point and clear azeotropic behavior of 2M2B simplify separation, while other C5 hydrocarbons introduce more fractionation headaches. Over decades, experience on the floor tells us which molecule keeps the reactor running smoothly and which one ends up fouling the system.
Producing industrial alkene streams starts with clean feedstock. Our plant operators follow protocols built from the ground up—reactor feed rates tuned daily, distillation columns checked for efficiency, and maintenance scheduled before fouling or corrosion can set in. Incoming raw materials and outgoing product face the same tight checks. Each drum of 2M2B runs through a battery of analytical techniques: gas chromatography for isomer ratio and purity, Karl Fischer for lower-than-possible water content, and on rare occasions, NMR or IR to verify absence of unknown side-products flagged by a vigilant technician. Suppliers often focus on selling to the highest bidder, but we work with downstream users to see how production changes impact real-world use.
We think about storage as much as immediate delivery. Unsuitable gaskets or exposure to ambient air risks introducing peroxides—one operator’s casual oversight can turn a simple transfer into an emergency. We’ve developed in-house training for everyone who loads and unloads our material. Each shipment includes real-world guidance, direct from experience, about allowable maximum temperatures and material handling quirks—reminders that aren’t buried in legal fine print, but voiced every time we walk the site floor. The future of 2M2B supply depends not on volume alone, but on reliability, transparency, and passing along lessons learned the hard way.
There are a lot of C5 alkenes on the market, but time and again we hear the same result: only 2-Methyl-2-Butene performs to spec in syntheses where clean reactions matter. Straight-chain C5s like 1-pentene or 2-pentene behave more like raw building blocks—useful, but prone to unwanted rearrangement and byproduct formation. Our research team documented cases where a switch to 2M2B cut purification time in half, thanks to more predictable reactivity in acid-catalyzed reactions. Even old hands who have worked in production lines building UV absorbers and specialty resins recognize that switching to a branched alkene results in both higher yields and fewer waste streams. Each gain isn’t theoretical; it shows up on project timelines and cost reports, values that led us to refine our own internal standards beyond industry minimums.
In the world of specialty chemicals, distinctions between products are rarely black and white, but certain specifications mean everything. Our product only leaves the gate after confirming no acidic or high-boiling residues remain, and every batch receives full traceability along the supply chain. We measure and log storage temperatures and potential peroxide build-up, so each container leaves our facility just as stable, pure, and ready to use as the one before. That focus on hands-on stewardship distinguishes our 2-Methyl-2-Butene from alternatives handled without similar care. Customers—especially those in fine chemicals and high-end synthesis—let us know right away if anything slips through the cracks. That feedback loop has helped us tune manufacturing with a degree of precision we believe is rare among bulk chemical producers.
Ongoing research and feedback from the field push us to refine our processes. Recent upgrades in distillation control and in-line analytics help us avoid off-spec production, while improvements in transfer and storage design reduce product degradation to near undetectable levels. Our R&D team works side by side with operations; any time they see a recurring pain point or opportunity for tighter control in the behavior of 2M2B, we change the SOP—no waiting for industry consensus, just taking action based on lived experience.
On the customer side, we’ve begun collaborating directly with users in pharmaceutical synthesis, polymer development, and gasoline blending to test the limits of current production methods. Sometimes these conversations lead us to modify purity specs or recommend bulk delivery direct to process reactors. We don’t shy away from changing batch sizes, delivery methods, or analytical protocols to support new project requirements. More than once, this flexibility has helped a production chemist meet a regulatory hurdle or a product designer push performance that bit further, relying on our willingness to share technical details that usually stay behind the curtain.
Raw materials markets shift, and regulations around hazardous goods transport aren’t static. Our job as a chemical manufacturer includes more than making an alkene to spec—it means tracking supply risk, collaborating on contingency planning, and providing storage guidance that fits real-world conditions, not textbook scenarios. The volatility of 2M2B demands closed-loop supply practices. We work with tanker fleets already qualified for flammable hydrocarbons, and in high-volume agreements, we deploy onsite storage tanks fitted with continuous venting and leak detection. Our customers only run as smoothly as their inputs, making reliability in production and distribution essential—lessons we’ve absorbed during trucker strikes, rail delays, and customs shutdowns that stress test every link in the supply chain.
With increasing regulatory scrutiny on airborne VOCs and workplace exposure, we’re not content with the status quo. We track new labeling and registration requirements, update our documentation, and stay ahead of safety assessments before forced by regulators. Users of 2M2B depend on a partner that adapts—recommending vapor emission controls, closed-handling equipment, and robust PPE practices. We’ve implemented vapor recovery systems that feed back into the reaction process, reducing environmental impact while giving operators a safer, cleaner work environment. Every improvement reflects decades of feedback from maintenance crews, safety officers, lab chemists, and production supervisors—real-world voices shaping a safer, more sustainable future for materials like 2M2B.
We are clear-eyed about what sets high-quality 2-Methyl-2-Butene apart. The difference starts with sourcing, continues through processing, and finishes with delivery to customers who put every drop to use in demanding applications. We stand by a product that has made its mark not just through a line in a catalog, but in thousands of real reactions, tight process controls, and long-term collaborations with people who rely on consistent, high-performing chemical building blocks. For manufacturers navigating a complex, evolving landscape, the story of 2M2B isn’t about a generic commodity. It’s about a material shaped by hands-on attention, deep process insight, and practical commitment—to quality, safety, and innovation in an industry built on trust and results.