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HS Code |
193387 |
| Chemical Name | 3-Methyl-2-Penten-4-yn-1-ol |
| Molecular Formula | C6H8O |
| Molecular Weight | 96.13 g/mol |
| Cas Number | 81712-09-0 |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | Varies, typically around 110-120°C (estimate) |
| Density | Approx. 0.87 g/cm³ (estimate) |
| Solubility In Water | Slightly soluble |
| Refractive Index | Approx. 1.450 (estimate) |
| Flash Point | Estimated around 35°C |
| Structure | CH2(OH)-C≡C-CH=CH-CH3 |
| Synonyms | 3-methylpent-2-en-4-yn-1-ol |
| Pubchem Cid | 12541644 |
| Functional Groups | Alcohol, Alkyne, Alkene |
| Stability | Stable under recommended storage conditions |
As an accredited 3-Methyl-2-Penten-4-Yn-1-Ol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 3-Methyl-2-Penten-4-Yn-1-Ol is packaged in a sealed 100 mL amber glass bottle with tamper-evident cap. |
| Shipping | 3-Methyl-2-Penten-4-yn-1-ol is shipped in tightly sealed containers to prevent leakage and evaporation. It should be kept away from ignition sources, oxidizing agents, and direct sunlight. The product is usually transported under standard chemical shipping protocols, ensuring proper labeling, documentation, and adherence to relevant safety and regulatory guidelines. |
| Storage | 3-Methyl-2-penten-4-yn-1-ol should be stored in a cool, dry, well-ventilated area, away from sources of ignition, heat, and direct sunlight. Store in tightly closed, amber or chemical-resistant containers to prevent contamination. Keep away from oxidizing agents, acids, and bases. Ensure proper labeling, and use secondary containment to prevent leaks or spills. Handle under inert atmosphere if sensitive to air. |
Applications of 3-Methyl-2-Penten-4-Yn-1-Ol in Industrial Manufacturing3-Methyl-2-Penten-4-Yn-1-Ol is a highly specialized alkyne alcohol valued in a select range of chemical manufacturing sectors. Its unique molecular architecture enables targeted reactivity in multi-step syntheses where precise control over reaction outcomes is critical. Below, we detail established industrial applications and integration points for this raw material across specific downstream fields. 1. Pharmaceutical Intermediate SynthesisThis compound plays a critical role as a building block in the synthesis of active pharmaceutical ingredients (APIs), especially for complex molecules containing both unsaturated and hydroxyl functionalities. Manufacturers utilize it in routes constructing antiviral and anticancer candidate structures, where its triple bond and secondary alcohol enable downstream functionalization by coupling and cyclization reactions. Stringent process validation and consistent impurity profiles remain vital during integration in drug substance manufacturing. Industry compliance standards
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2. Agrochemical Active Ingredient SynthesisLeading agrochemical producers employ 3-Methyl-2-Penten-4-Yn-1-Ol as a precursor in synthesizing certain selective herbicide and insecticide actives that require short-chain alkynyl functional groups. The compound is specifically chosen for its ability to participate in Sonogashira-like couplings and for chain extension within multi-step synthesis platforms, directly contributing to the mode of action of the end-use crop protection agents. Industry compliance standards
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3. Electronic Materials for Organic SynthesisProducers of organic electronics leverage this alkyne alcohol in the fabrication of specialized intermediates and monomers intended for conductive polymers and OLED materials. The alcohol and alkyne handle permit highly regular cross-coupling and polymerization processes required for end-use properties such as charge mobility or photoluminescence. Attention to purity, trace metals, and stability is fundamental to maintain performance and processability in this sector. Industry compliance standards
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4. Fine & Specialty Chemicals (Alkynyl Alcohol Derivatives)Manufacturers of fine chemicals select this raw material for the custom synthesis of specialty alkynyl alcohol derivatives, which serve as reagents, ligands, or scaffolds in asymmetric catalysis, analytical derivatization, and advanced chemical research. The balance of reactivity and selectivity enables straightforward modification and incorporation into high-value molecular structures destined for research, diagnostics, or specialty functionalization applications. Industry compliance standards
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5. Fragrance and Aroma Intermediate ManufacturingSpecialty fragrance houses and aroma chemical manufacturers utilize this compound as a precursor for crafting niche aroma molecules with unique smoky, green, or metallic notes, made possible by the triple bond and alcohol group placement in the molecule. It is introduced as a strategic intermediate in the assembly of highly specific aldehyde or ester components for use in fine fragrance or flavor blends, with production governed by food and perfumery safety requirements. Industry compliance standards
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Years of working in chemical production teach us what makes certain molecules matter for formulators, researchers, and buyers around the globe. 3-Methyl-2-Penten-4-yn-1-ol caught the industry’s attention because it stands out in several important ways. The journey starts at the reactor: you don’t arrive at high-purity 3-Methyl-2-penten-4-yn-1-ol by luck or by following a template recipe. This molecule demands a blend of precise feedstock control, carefully managed process conditions, and experience in handling triple bonds on an open-chain unsaturated backbone.
Our staff sees directly how even small changes in distillation temperature or vacuum pressure swing the impurity profile, especially with acetylene derivatives. Close oversight ensures the alpha, beta-unsaturated architecture remains correctly configured. That gives our 3-Methyl-2-penten-4-yn-1-ol its characteristic reactivity, which sets it apart from regular aliphatic alcohols or simple alkynols. In daily production, every batch brings new adjustments—thus experienced technicians spend significant time tracking how the molecule responds to catalyst tuning, feedstock origin, and reflux ratio. Skimping on quality control means unwanted byproducts creep in, throwing off downstream use. That isn’t just hypothetical; months of test analytics in our in-house lab reinforce why this molecule punishes shortcuts.
The unique structure of 3-Methyl-2-penten-4-yn-1-ol brings together an alkynyl group and a methyl-substituted pentenol skeleton. Chemists recognize the power in this layout for controlled additions and modifications. Its chemical formula, C6H8O, puts it in a different class from the basic pentenols or propargyl alcohols. Analytical proof—typically verified by GC-MS and NMR in our lab—confirms each lot meets stringent minimum purity. For our standard-grade product, the total purity reaches over 98%, with water content strictly held well under 0.2%. Because the terminal hydroxyl is prone to minor oxidation during storage, we tightly regulate nitrogen blanketing and amber glass packaging. The low water and byproduct threshold reflect both attention in synthesis and hands-on discipline through purification.
Direct experience taught our team that storage and transport requirements deserve as much scrutiny as synthesis. Fluctuating temperature in the warehouse can accelerate formation of trace acetylene dimers or oxidation byproducts, and these show up on trace-level analytics much faster than in more robust saturated molecules. We use real-world batch monitoring, not just theoretical guidelines, to adjust for seasons and shipment distances. With every shipment, our quality team checks for shifts in color, GC-MS fingerprint, and acidity, flagging even the faintest yellowing or extra peak as signals for retesting.
Small differences in a molecule change where it belongs in chemical industries. Process engineers, R&D labs, and custom synthesis groups tell us why they seek out our product, and we draw lessons from those feedback cycles. In pharmaceutical research, chemists often target the conjugated enyne structure for its rich potential in building complex, bioactive molecules. This compound fits right between reactivity and stability for multi-step synthesis. Where classic pentenols lack the triple bond, and propargyl alcohols don’t carry an alpha-substituted geometry, 3-Methyl-2-penten-4-yn-1-ol gives a balance uniquely suited for ring-closing reactions, cycloadditions, and functionalizations on the triple bond.
Often, the people using our product aren’t working in a vacuum—they report that standard alcohols and simple alkynes don’t open doors in transition-metal catalyzed reactions the way our molecule does. Its combination of alkene and alkyne is more than academic. In cross-coupling protocols, for instance, we hear chemists value the selectivity and sequence control it provides, especially where side-reactions from homogenous alkynols frustrate their work. Some agrochemical projects branch out from commodity feedstocks and need more specialized building blocks. Here, the methyl substitution and spatial arrangement—features at the heart of our 3-Methyl-2-penten-4-yn-1-ol—create steric effects that can direct the course of a reaction or help craft more targeted activity in the final molecule.
Customers in flavor and fragrance research point out how our compound bridges volatile alkyne notes with a backbone stable enough to anchor synthetic intermediates. The scent development teams experiment with functionalizing both unsaturations, chasing new ester or ether profiles that wouldn’t work with saturated alcohols. Their results often depend on minimizing trace side products or old inventory—one more reason shelf life and handling matter for our factory, and a reason we use in-process stability monitoring and flexible packaging protocols.
Functional polymer research accounts for another share of demand, especially for those engineering optoelectronic materials. Companies report that conjugated diynes and enynes often start from feedstocks like our product, giving them opportunity to tune electrical properties in their films—something simple alcohols miss. Over years of partnering with university labs and pilot facilities, our feedback loop keeps tightening the specs our material delivers, aiming to stay ahead of both academic curiosity and practical manufacturing needs.
A lot of products crowd the shelves, so claims of “purity” and “versatility” start to feel hollow until you see what makes each batch actually distinct. Comparing 3-Methyl-2-penten-4-yn-1-ol to routine pentenols, the obvious is the conjugated enyne—rare in bulk intermediates, and critical for transformation not possible with straight-chain alcohols or simple unsaturated alcohols. Single-function products look easier to manufacture, but our process runs up against the constant tension between preserving unsaturation and removing every hint of metallic residue or acetylene impurities. This means manufacturing teams sharpen their skills not only in standard distillation but also in handling catalysts with minimal downstream contamination—making in-line purification and metal scavenging part of our regular routine.
Discussions with researchers point out that some commercial-grade chemical sources take shortcuts in their dehydration or alkynylation steps. By contrast, our long-term investment in post-synthesis analytics guarantees the delicate triple bond survives without runaway polymerization. Early on, we saw that even small metal contamination alters shelf stability or promotes slow color changes. This is not marketing fluff—analytical logs from our QC lab straight-up show end-of-shelf life failures are traceable to overlooked impurities from upstream reagents. Keeping those out requires a different attitude toward process discipline, and it comes only by learning from years of hands-on setbacks and incremental improvements.
Comparing to propargyl alcohol, which dozens of suppliers can make, 3-Methyl-2-penten-4-yn-1-ol’s extra methyl and extended chain complexity introduce enough unpredictability that “off-the-shelf” solutions don’t work. Synthesizing this product at scale isn’t a matter of just tweaking existing reactors for size; every cycle, our batch logs record deviations, new approaches, and revised filtration runs. As a factory-based operation, our familiarity with the quirks of this compound, including how it interacts with glass and seals, shapes countless small decisions—from solvent selection on extraction days, down to operator training on how not to over-purge or under-blanket the storage tanks.
Manufacturing this compound brings a different flavor of challenge than more forgiving alcohols or alkynes, a fact we repeat among operators and engineering supervisors. The subtle point is how impurity sources evolve over time. Change your acetylene supplier or reactor surface just a little, and our downstream QA sees shifts in color, viscosity, or oxoacid byproducts. The learning doesn’t come only from following published literature, but from physically watching how the molecule changes throughout the batch—and sometimes, learning the hard way from trial runs that failed to pass downstream functional group compatibility tests.
The real-world difference comes from a mindset focused on reactivity preservation and impurity avoidance. Staff members grow adept not only at tuning reaction time and temperature but at tracking minor signals—the faint odor profile shift, slight change in refractive index, or sudden mist in storage vessels on humid days. Those observations lead to small but vital process tweaks (like refreshing the drying step sequence, or bringing in fresh molecular sieves mid-run) that don’t show up in generic product descriptions.
Real examples give a truer picture than theoretical use cases. Several university labs told us they started with other alkynols, found those lacking, switched to our product, and only then managed to drive through challenging synthetic routes. The build-up of robust synthetic intermediates rides not only on reactivity but on batch stability; if the starting compound begins to degrade, the rest of the route unravels. Our clients in scale-up operations confide that shortcuts at the raw material phase show up months later in rejected lots or poor functionalization efficiency.
In the real chemical world, nobody wants to waste money or time investigating failures that start with uncertain feedstock. That’s why, over years, our staff inspect not just every outgoing drum but the very details of tank aging, transport time, and regional differences in surface humidity. Direct communication with formulators means we continually capture problems “on the ground”—like subtle shifts in flash point, which change handling on the plant floor, or how winter deliveries demand special insulation procedures.
Sustainability carries weight only when it gets built into both the process and the day-to-day shop floor decisions. For this particular compound, minimizing solvent use and reducing waste streams requires process integration at each step, as residues or byproduct streams can quickly turn hazardous due to the unsaturated groups. Our technicians adapt filtration and neutralization steps to match each run’s characteristics, aiming to reclaim solvents where possible and neutralize dangerous sidestreams on-site. This isn’t just good practice—it directly affects worker safety and cost control, as acetylenic residues pose their own handling challenges.
Waste management for unsaturated alcohols isn’t a checkbox exercise; residues can slowly decompose or cross-react if left unchecked. We review every lot’s waste stream and regularly update our destruction and recovery protocols with feedback from both frontline operators and external environmental auditors. In larger batch cycles, real observations on the vapor-phase byproducts sometimes influence adjustments to reactor pressure or post-reaction cooling, heading off potential containment or storage issues before they become regulatory headaches.
Plenty of organizations market chemicals by focusing on certificates or compliance tags. We prefer to focus on what hands-on analytics and feedback from long-term partners reveal. Certificates themselves don’t reveal why a molecule matters or what keeps it stable during demanding process steps. Stronger quality standards come from real testing, including approaches like longitudinal stability studies, reactivity tests with typical downstream reagents, and full-trace impurity analyses beyond what minimum standards demand.
Regular discussions with industry partners and R&D groups keep us attentive to evolving needs, both as regulations grow tighter and as customers push for materials with greater control and predictability. Adaptation means not just catching impurities after the fact, but feeding insights from failed runs back into continuous improvement in process control strategy.
Trust in supply chains isn’t about marketing gloss or jargon; it’s built batch by batch. Staff who monitor, question, and log every detail end up forging the path to more reliable production. Inventory is rotated rapidly to avoid stockpiling, with frequent in-house checks on acidity, moisture, and spectral features. This discipline grew from plenty of real-world lessons—nobody’s too proud here to admit a process needs updating if the technical data calls for it.
The essence of our work with 3-Methyl-2-penten-4-yn-1-ol lies as much in continuous learning as in fixed procedures. Every uptick in analytical precision brings new surprises; even small changes in upstream reagents sometimes produce long tails in downstream performance. That’s how our knowledge base actually grows—by tuning, listening, and incorporating every feedback cycle into tomorrow’s process controls.
What sets our daily experience apart is this unbroken link between operator observation, lab data, customer feedback, and process improvement. Every sector using our compound, from fine chemicals synthesis to research labs to industrial pilot plants, shares back new demands or unexpected quirks. We see our best improvements not from copying other producers or coasting on certificates, but from pushing internal QA and R&D beyond what’s conventional. It could be a tweak to the inerting cycle, an alternative drying method, or an entire rethink of container design based on how reactive the molecule behaves under field conditions.
Our history with this molecule continues to show that “unique” or “specialty” means nothing without a manufacturing culture willing to iterate, learn, and document what actually works. End users—especially the most demanding—notice the difference, not in how we describe the chemical but in how their projects progress from planning to reality when they use a consistently controlled product. They want certainty backed by real-world results, and we put in the work to make sure each batch of 3-Methyl-2-penten-4-yn-1-ol delivers exactly that, every time.