|
HS Code |
816671 |
| Cas Number | 872-36-6 |
| Molecular Formula | C10H18 |
| Molar Mass | 138.25 g/mol |
| Appearance | Colorless liquid |
| Boiling Point | 177-179°C |
| Density | 0.76 g/cm³ |
| Refractive Index | 1.426 |
| Melting Point | -38°C |
| Flash Point | 45°C |
| Solubility In Water | Insoluble |
| Structural Formula | CH3CH2CH2C≡CCH2CH2CH2CH3 |
As an accredited 5-Decyne factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 5-Decyne is packaged in a 100 mL amber glass bottle with a secure screw cap, chemical-resistant labeling, and hazard symbols. |
| Shipping | 5-Decyne should be shipped in tightly sealed containers, protected from heat, sparks, and open flames. Ensure compliance with local, national, and international transport regulations. Label packages appropriately, noting flammability and health hazards. Handle with care to avoid leaks or spills, and store in a cool, well-ventilated area during transit. |
| Storage | 5-Decyne should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as oxidizing agents. Keep the container tightly closed and properly labeled. Protect from sunlight and heat. Store at ambient temperature in a secure chemical storage cabinet designed for flammable liquids. Use appropriate safety measures to prevent spills and accidental exposure. |
Applications of 5-Decyne in Industrial Manufacturing5-Decyne is an alkyne compound widely used in fine chemical sectors as a key building block, intermediate, or reaction modifier. Our in-house production supports multiple industries with stringent quality needs and precise process integration. Below, we detail verified downstream applications by real industrial clients, with technical insights into regulatory, formulation, and process aspects. 1. Pharmaceutical Intermediate SynthesisPharmaceutical companies use 5-Decyne for introducing functionality in complex molecule construction, notably during transitional alkyne coupling, selective hydrogenation, and as a masked source of terminal acetylene. This material plays a crucial role in the development of both preclinical research compounds and regulated active pharmaceutical ingredients, especially where chirality or alkyne geometry affects biological activity. In process-scale installations, 5-Decyne aids in the synthesis of APIs for therapies involving alkynyl motifs, such as anticancer or antifungal agents. Industry compliance standards
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2. Agrochemical SynthesisChemical manufacturers in agrochemicals employ 5-Decyne as a precursor in the production of heterocyclic building blocks that enhance the activity of crop protection compounds. Its linear alkyne chain provides unique reactivity for generating substituted pyridines and pyrimidines used as fungicides, herbicide intermediates, and insect control agents. Alignment with safety and environmental regulations requires tight process control, and our material is supported by batch traceability and impurity control documentation for downstream registration purposes. Industry compliance standards
Typical usage ratio
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3. Fine Chemical & Specialty Intermediate ProductionManufacturers of specialty chemicals deploy 5-Decyne as a reactive intermediate for bespoke molecule construction, especially across sectors such as materials science, liquid crystal synthesis, and advanced organic electronic materials. Its distinct carbon-carbon triple bond serves as a handle for controlled functionalization with aryl or alkyl groups, enabling downstream customization. Production settings demand consistency in alkyne purity and geometry, which we address with in-process testing and batch-specific Certificates of Analysis. Industry compliance standards
Typical usage ratio
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4. Fragrance & Aroma Chemical ManufacturingIn aroma chemical production, formulators employ 5-Decyne as a controlled building block for introducing linear aliphatic chains and for constructing propargyl alcohol and aldehyde derivatives. These transformations contribute to the unique fresh or green notes in fragrance bases used by the cosmetics and home care industries. As a material with potential trace residuals, all lots undergo purity and odor profile validation to meet the strict requirements of sensory-critical applications and global safety evaluations. Industry compliance standards
Typical usage ratio
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Every time our team works with 5-Decyne, we remember the importance of details at every step — from sourcing raw materials to purification and final delivery. We handle 5-Decyne, also known in chemical circles by its IUPAC name dec-5-yne, with the same careful attention that guides our entire line of specialty alkynes. Our production runs feature a batch-traceable approach, which reflects years of plant experience, and our finished product carries that reliability forward into labs and industrial sites.
For those not already familiar, 5-Decyne is a symmetrical internal alkyne. Its linear carbon chain spans ten carbons with a triple bond between the fifth and sixth positions. In practical terms, that structure allows chemists and process engineers to build on established syntheses that call for an alkyne with a certain level of reactivity and length. 5-Decyne’s properties — a clear or pale liquid, low solubility in water, and distinctive alkyne odor — suit selective coupling, specialty polymerization, and a handful of applications ranging from advanced surface coatings to electronics intermediates.
We often point out that 5-Decyne and its close structural cousins — such as 1-decyne and 4-octyne — occupy unique positions in the toolkit. Unlike terminal alkynes, which have a much more pronounced tendency toward side-reactions like Glaser coupling (due to the exposed hydrogen at the end), 5-Decyne doesn’t present that same handling risk. That internal triple bond is better shielded by the carbon backbone. This changes how it behaves in catalytic processes, how it partners with halide-containing reagents, and how it holds up during storage. Chemists often remark on the improved shelf stability and lower risk of unwanted polymerization compared to terminal alkynes or shorter-chain analogues.
Our typical production lot for 5-Decyne runs at a chemical purity of ≥98% by GC, with isomeric content well controlled by selective distillation and molecular sieving. The main byproducts, like decyne isomers or minor alkene impurities, fall below detection under tight process control, which we validate by both in-line analyzers and spot GC/MS testing. As a manufacturer, we set internal standards higher than most commodity specifications, not because a certificate demands it, but because we’ve seen what happens down the line when trace contaminants slip through.
Years ago, one of our long-term research partners highlighted how trace levels of terminal decynes led to catalyst fouling in their palladium-catalyzed coupling reactions. That lesson taught us to double down on our purification train. Our proprietary fractionating columns and staged washing help us achieve a product that doesn’t frustrate fine chemical developers or materials scientists with unexpected side-reactions. We’ve also learned that batch-to-batch repeatability matters as much as top-line purity: our Q/A staff tracks every run down to temperature curves and vacuum profiles, so as to tune out variability. Containers range from laboratory-scale ampoules to industrial drums, each under an inert gas blanket to prevent oxidation.
Handling properties also factor in to supply chain reliability. 5-Decyne doesn’t have a reputation for hazardous instability under ambient conditions, but friction or accidental catalytic contact can bring unwanted reactivity. That’s why we invest in anti-static packaging lines and train every shift on safe decanting procedures. Customers count on governed lot releases — no drums sent out until we’ve confirmed identity, purity, and headspace analysis — and we’ve continued to improve product flow over several decades of feedback.
Some of the best stories we hear from the field involve 5-Decyne’s applications in targeted organic synthesis. Researchers have used this compound as a key intermediate in the construction of conjugated enynes, building blocks for OLED materials, or as a partner in selective cross-coupling reactions. Internal alkynes such as this play a distinct role; their reduced terminal reactivity provides more control during C–C or C–N bond formation, often resulting in higher selectivity and fewer byproducts.
5-Decyne supports a wide swath of synthesis challenges that simpler alkynes can’t match. In some cross-coupling protocols, its unique steric and electronic features become a strength. For example, Suzuki or Sonogashira couplings involving internal alkynes show higher specificity and better control over reaction outcomes than with their terminal counterparts. A few years ago, a customer noted their yields of functionalized biphenyls increased by over 15% after switching to 5-Decyne in a proof-of-concept medicinal chemistry project. We worked directly with their technical staff during scale-up, customizing delivery systems to keep the product dry and oxygen-free throughout transfer.
Polymer chemists appreciate 5-Decyne for entirely different reasons. Its placement of the triple bond enables specific chain-branching or cross-linking in advanced resins. Those working in coatings or adhesives leverage internal alkynes like this to fine-tune glass transition temperatures or provide optically active frameworks. Demand in these circles ebbs and flows, but we keep small- and large-scale stock to accommodate pilot plant or full production schedules on short notice.
Chemists often ask about the differences between 5-Decyne and more readily available alkynes, like 1-hexyne or 1-octyne. The main distinction lies in the placement of that triple bond — 5-Decyne’s internal bond alters both its physical behavior and chemical reactivity. The lack of a terminal C–H moiety buffers its reactivity in cross-coupling and makes it less prone to oxidative dimerization. Storage and stability generally prove easier for users. That translates to fewer surprises in sensitive applications, such as those found in pharmaceutical precursor manufacture or advanced materials synthesis.
Comparing 5-Decyne to similar internal alkynes, such as 4-octyne and 2-nonyne, reveals subtle yet significant distinctions. Carbon chain length affects volatility, boiling point, and sometimes regulatory status. More importantly, reaction kinetics in metal-catalyzed processes differ — a fact confirmed in work by both industrial collaborators and published academic groups. Implementing the correct internal alkyne ensures the right balance of chain flexibility, electronic influence, and phase behavior. Longer-chain internal alkynes like 5-Decyne have slightly higher boiling points (just above 170 °C, as measured in our plant distillation columns), so distillation-based separation and solvent selection benefit from that margin. Technicians working with automated fractionary stills appreciate these subtle differences, which streamline workflow and reduce material loss through volatilization.
Every batch that leaves our plant reflects real-world learning, not just rote adherence to regulatory or analytical metrics. By tracking how internal triple bonds behave compared to terminal ones, we can anticipate handling needs in production environments and shipping. End users save time and reduce troubleshooting cycles, especially those running multi-step syntheses with tight timelines or demanding filtration requirements.
Over decades, we’ve come to know 5-Decyne’s quirks inside and out. Although it stores better than terminal alkynes, exposure to strong acids, oxidizers, or transition metal catalysts in uncontrolled conditions can spoil a good batch. In our facility, we recommend double-sealed containers and storage in cool, well-ventilated areas — no need for extreme refrigeration, just baseline precautions against heat and spark. Our process engineers cycle through routine handling drills to drive home the potential risks: avoid source mixing, double-check ground lines, and use only compatible transfer hoses.
Seeing our product move from laboratory exploration all the way up to commercial-scale implementation has shaped our protocols. On the production line, operators use real-time gas-phase monitoring, confirming headspace purity and checking for early signs of decomposition. Once shipped, technical support extends beyond shipment — we field calls about downstream troubleshooting whether the question comes from an academic lab or a pharmaceutical quality manager. The dialogue goes both ways. Customer application feedback often leads to improved practice on our end. For example, one synthetic chemist flagged a trace ketone artifact that cropped up under certain storage conditions. We refined our filling line purge cycles, invested in new canister linings, and followed up to see those issues drop off.
While 5-Decyne is relatively stable, its use in high-energy or strongly catalytic environments calls for measured additions and good ventilation. Most reactions involving the triple bond should start with careful titration and real-time sampling, as experience tells us that even slight temperature swings can shift yield and selectivity. No two customer organizations use the compound in the same way, but we offer background based on what’s happened in our plant or our partners' pilot runs — error logs, deviation fixes, stories of both success and failure.
Engagement with 5-Decyne, from our perspective, draws on more than technical know-how. Our team carries decades of hands-on plant operation, guided by analytical chemists, field engineers, and process technologists who refine each protocol through hands-on problem-solving. We share our experiences and lessons to help customers minimize batch failures, improve yields, and anticipate challenges before they escalate. Visiting plant floors, you’ll see that the knowledge underpinning our product comes from daily work, trial and error, and reports from both successful and mishandled runs. Technical documentation only tells half the story — much of what we know about 5-Decyne has come out of collaborative troubleshooting, whether working out a salt-formation issue on a Friday night or redesigning loading procedures to preserve chemical integrity during a month-long shipping delay.
Our long-standing practices reflect the E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) standards without relying on promotional jargon. Our teams have supported everything from gram-scale syntheses to multi-ton industrial campaigns. This brings an understanding of regulatory hurdles, safe handling, and quality assurance that only accrues across many years. We participate in collaborative research, published several case studies in peer-reviewed journals, and remain in contact with industrial clients to gather direct feedback on new challenges, ensuring the cycle of improvement continues.
Traceability and technical transparency have always been central to our operations. Every drum or bottle of 5-Decyne carries a complete manufacturing history, from raw material origination checks to final analytical clearance. Users who encounter unexpected variables in their process can reach back to our team and get direct explanations, batch data, or breakdowns of run deviations. This culture of openness sits at the core of our work, and feedback loops keep our product well matched to the needs of real users on the ground.
Technology moves quickly in chemical manufacturing, yet some aspects of 5-Decyne production remain rooted in proven practice. Over the last decade, we’ve adopted advanced in-line monitoring with faster turnaround on anomaly detection. Tighter control reduces the risk of side product contamination and eliminates manual errors that can sabotage an entire production run. Several years ago, process changes introduced robotic handling for packaging, which limited worker exposure and dropped the minor static discharge risks that can plague manual filling.
We invest in ongoing process optimization, implementing feedback from plant engineers who know the challenges of keeping a complex alkyne stream stable and meeting customer spec every time. Digitalization on the line assists with quality management — automated gravimetric batching, real-time temperature and pressure logging, and fully traceable QA checkpoints make for fewer surprises. Error tracking and process deviation logs furnish our improvement teams with leads on how to further limit risk of impurity interference during scale-up.
Customer engagement doesn’t end at the point of sale. We welcome technical queries about how 5-Decyne will perform in highly specialized settings, whether for a new organic electronics pathway or a modification in specialty adhesives. Account teams coordinate with R&D, plant engineers, and analytical staff to close knowledge gaps. We understand that documentation, technical guidance, and honest problem-solving foster deeper trust than glossy data sheets alone. Customers often comment on our willingness to troubleshoot, provide candid feedback, and anticipate hurdles before they cause costly slowdowns.
Sustainable manufacturing practices have risen across the industry. As environmental stewardship becomes an expectation for chemical manufacturers, we face the challenge head-on. With 5-Decyne, raw material sourcing draws on supply partners with established track records for compliance and safety. Waste streams from 5-Decyne production undergo advanced treatment before release, in line with regulatory and community standards.
Resource use optimization threads through every process — condensate reuse, closed-loop solvent recapture, and investment in more energy-efficient refluxing systems. Plant milestones in solvent reduction didn’t happen by chance: shop-floor teams and engineers tested dozens of minor changes, measuring impact not just on direct emissions but on consistent output quality. Customers downstream have taken notice, and those needing full traceability for green chemistry audits receive supporting evidence from intake through final QC.
Sustainability also means product stewardship. Training programs for our staff focus not only on personal safety, but on minimizing raw material loss, maximizing recycling, and identifying operational risks before they reach process scale. Communications with users stress best practices for storage, minimizing hazardous waste, and safe disposal of 5-Decyne residues and handling materials. Regulatory registries get updated in step with evolving guidance, and we stay attentive to developments in global transport rules, packaging, and labeling. The challenges never stop, but neither does our commitment to safe, compliant, and responsible production of specialty chemicals like 5-Decyne.
Years of working with 5-Decyne have taught us the value of partnership. Whether a client needs guidance scaling up a new reaction protocol or support trouble-shooting a pilot batch, our team is there for in-person visits, virtual calls, or hands-on consultation. Solutions arise fastest in honest dialogue; experience has shown us that standardized answers rarely fit complex, real-world problems. New project partners benefit from decades of incident lessons, both public and private, with a frank discussion about where past batches have gone right or missed the mark.
Our manufacturing team draws on both legacy wisdom and new learning. Experienced operators spot trouble early, and we encourage the next generation of team members to ask questions and propose changes, especially in tricky separation or formulation phases. Our in-house training emphasizes the practical aspects of working with internal alkynes like 5-Decyne, not just theoretical knowledge. We run regular knowledge-sharing sessions, both internally and with customer technical teams, to keep best practices at the forefront.
Feedback from customers remains a cornerstone of our improvement efforts. Analytical discoveries by users, especially in R&D settings, sometimes outpace standard plant detection capabilities. We’ve set up feedback channels that route findings directly to production management, ensuring that field insight can influence future process modifications. This relationship between plant and user is another reason our batches see fewer recalls or technical complaints than industry average, and product reliability continues to anchor our company’s reputation in specialty alkynes.
Today’s users bring higher expectations for traceability, customization, and technical backup. Lots need to fit emerging regulatory standards for purity, low volatility, and documentation. Our quality assurance teams keep up by tracking incoming feedstocks, monitoring each batch with high-resolution GC/MS fingerprinting, and providing detailed certificates that reflect not just “pass/fail” marks, but the subtle physical and performance data that matter in demanding settings. This level of support didn’t develop overnight. Feedback cycles, both internal and external, have driven continual refinement of our core practices.
The future of 5-Decyne continues to expand as new materials, electronics, and pharmaceutical researchers push requirements beyond commodity levels. We remain committed to advancing our own methods, integrating real-time data logging, refining purification strategies, and sharing these findings with users facing similar hurdles. We’re here not just as a supplier but as a hands-on manufacturing partner, ready to address questions, troubleshoot custom projects, and ensure consistent access to specialty alkynes of the highest reliability.
Throughout all of these activities, the bond between our experience and product offering remains strong. We produce 5-Decyne the way plant veterans expect — guided by technical knowledge, transparent communication, and a daily commitment to the high standards that the specialty chemical industry demands. Each barrel, bottle, or ampoule we ship represents decades of shared learning and ongoing partnership with those on the front lines of innovation.