1-Hexyne

    • Product Name: 1-Hexyne
    • Alias: Hex-1-yne
    • Einecs: 211-019-1
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    459530

    Iupac Name Hex-1-yne
    Cas Number 629-08-3
    Molecular Formula C6H10
    Molar Mass 82.15 g/mol
    Appearance Colorless liquid
    Density 0.759 g/cm³
    Boiling Point 71 °C
    Melting Point -123 °C
    Flash Point -21 °C
    Solubility In Water Insoluble
    Vapor Pressure 160 mmHg (20 °C)
    Refractive Index 1.400

    As an accredited 1-Hexyne factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 100 mL amber glass bottle labeled "1-Hexyne, 98%," features hazard warnings and safety symbols, with a secure screw cap.
    Shipping 1-Hexyne should be shipped in tightly sealed, proper chemical containers, clearly labeled with hazard information. It must be transported as a flammable liquid, in compliance with local and international regulations (such as DOT, IATA, or IMDG). Handle with care, avoiding heat, sparks, or open flames during shipping to ensure safety.
    Storage 1-Hexyne should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from heat, sparks, open flames, and incompatible substances such as oxidizing agents and acids. Keep away from sources of ignition, and store in a flammable liquids storage area. Use proper grounding and bonding procedures to prevent static discharge.
    Application of 1-Hexyne

    Applications of 1-Hexyne in Industrial Manufacturing

    1-Hexyne, a linear terminal alkyne, demonstrates unique utility in a range of industrial manufacturing processes due to its reactivity and chain length. Below, we detail established downstream sectors that utilize this intermediate with specific attention to compliance, formulation design, real-world process steps, and resulting products.

    1. Synthesis of Agrochemical Intermediates

    Producers of selective herbicide intermediates incorporate 1-Hexyne in coupling reactions to build complex carbon skeletons, particularly for alkyne-containing aromatic structures. Due to its triple bond reactivity, it enables customized substitutions not achievable by saturated analogs. The material enters early-stage condensations or cyclizations under strictly controlled parameters to minimize by-product formation, supporting scalable batch production of downstream actives for crop protection.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006 (Europe)
    • EPA TSCA Inventory Compliance (USA)
    • ISO 9001:2015 Quality Management System for bulk chemical manufacturing
    • Chinese National Standards for Pesticide Intermediates GB/T 22265

    Typical usage ratio

    • 2–7% of the total molar input in coupling or cyclization formulations; actual percentage based on target molecular structure and conversion targets.

    Downstream process integration

    • Introduced as the alkyne source during initial catalytic coupling or cross-coupling stage, often via Sonogashira or Glaser-Hay conditions, followed by further derivatizations or reductions to deliver herbicide intermediates.

    Final product types

    • Intermediates for phenoxyalkynyl herbicides
    • Pyridine-based weed control precursors
    • Building blocks for synthesis of selective post-emergence crop protection agents

    2. API Intermediate Manufacturing for Pharmaceuticals

    Several specialized API synthesis routes utilize 1-Hexyne as a chain extension or functionalization point, notably in propargylation of heterocycles for antiviral drug intermediates. The alkyne maintains high reactivity during key steps, including metal-catalyzed reactions and selective hydrogenations. Manufacturers must control impurity profiles at this stage according to ICH Q7A and regulatory monographs, supporting downstream synthesis of advanced pharmaceutical intermediates.

    Industry compliance standards

    • ICH Q7A Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP-NF for relevant intermediate classes
    • Ph. Eur. certification for pharmaceutical starting materials
    • FDA 21 CFR Part 211 (where applicable for U.S. destined APIs)

    Typical usage ratio

    • 0.8–3 molar equivalents per step based on pathway design; ratio optimized for yield and minimal residual alkyne in critical intermediate output.

    Downstream process integration

    • Charged during Grignard additions or cross-coupling with aromatic or nitrogen heterocycle fragments, monitored closely for exotherm management and residual metal content.

    Final product types

    • Advanced pharmaceutical intermediates for antiviral agents
    • Pyrrole- and imidazole-derived pharmaceutical building blocks
    • Specialty intermediates for kinase inhibitor syntheses

    3. Specialty Polymer and Resin Synthesis

    Producers employ 1-Hexyne in the formation of conjugated polymers, where its unique chain and triple bond facilitate the generation of electronic polymers and high-performance resins with tailored conductivity or optical properties. Used predominantly as a comonomer, it enables specialty end-uses in electronics and coatings where precise structural incorporation is essential for downstream performance in advanced materials.

    Industry compliance standards

    • ISO 14001 Environmental Management for specialty chemical synthesis
    • ISO 9001:2015, quality controls for electronic polymer resin production
    • RoHS (Restriction of Hazardous Substances Directive) for electronic-grade polymers (EU)
    • TSCA Polymer Exemption Rule for USA-manufactured specialty polymers

    Typical usage ratio

    • 0.3–1.2 mole fraction in specialty copolymer/crosslinker feeds; concentration adjusted to control final conductivity and mechanical properties.

    Downstream process integration

    • Added during the monomer feed stage for controlled polymerization, commonly with transition metal catalysts or radical initiators, followed by purification and quality screening for electroactive performance.

    Final product types

    • π-conjugated electronic polymers for semiconductors
    • Crosslinker-modified epoxy or urethane resins for advanced coatings
    • Photocurable functionalized resins for 3D printing and microfabrication

    4. Fine Chemical Synthesis for Fragrance Intermediates

    Within fragrance and flavor precursor manufacturing, 1-Hexyne acts as a terminal alkyne source in the stepwise synthesis of muscone-like macrocycles and aliphatic alcohols. Due to its chain length and reactivity, it supports ring-closing or chain-extension steps where controlled introduction is crucial for olfactory profile. The formulation follows IFRA guidance, with close analytics for residual alkynes and by-products before downstream distillation and refinement.

    Industry compliance standards

    • International Fragrance Association (IFRA) Standards
    • ISO 9001 for fine chemical production
    • EU REACH registration for fragrance intermediates
    • US FDA 21 CFR 172.510 (where fragrance used in indirect food applications)

    Typical usage ratio

    • 1–5% by weight in coupling or cyclization reaction mixtures, with actual level dictated by final desired chain length and macrocycle synthesis conditions.

    Downstream process integration

    • Dosed in early condensation or after functionalized initiator introduction, subjected to selective cyclization (e.g., RCM) or reduction under monitored batch conditions to prevent over-reaction.

    Final product types

    • Macrocyclic muscone and civetone analogues
    • Chain-extended aliphatic alcohols for fragrance blending
    • Specialized lactone and iso-alkyl ester intermediates

    5. Organic Synthesis Reagents for Research and Fine Chemicals

    Fine chemical manufacturers and research-scale facilities deploy 1-Hexyne as a key alkyne source in bespoke molecule construction, particularly for small-volume custom syntheses. Its terminal triple bond enables a variety of functionalizations from click reactions to selective coupling, with QC testing tailored to meet analytical rigor for bespoke compound delivery. Registered for use under limited hazard protocols, batches follow strict documentation and traceability.

    Industry compliance standards

    • GHS SDS documentation for laboratory chemicals
    • ISO 17025 laboratory testing certification for QC and purity
    • US DEA List I/II precursor compliance (for controlled end-use sectors)
    • REACH Registration—Annex IV Exemptions for research chemicals (EU)

    Typical usage ratio

    • 0.05–0.5 molar equivalent per reaction in multi-step syntheses; adjusted per target compound and analytical specification.

    Downstream process integration

    • Weighing and addition at the reaction initiation stage, handled under fume hood protocols, followed by direct reaction monitoring via NMR or GC-MS for targeted fine chemical output.

    Final product types

    • Custom intermediates for API and agro studies
    • Building blocks for material science research
    • Functionalized alkynes and propargyl derivatives

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    Certification & Compliance
    More Introduction

    1-Hexyne: A Vital Intermediate from Trusted Production

    What Sets Our 1-Hexyne Apart

    Every batch of 1-Hexyne rolling out of our reactors brings years of practical experience in specialty alkyne chemistry. As a pure, colorless liquid with the formula C6H10, 1-Hexyne serves a set of customers with advanced needs in pharma research, agrochemical development, and materials innovation. Walk into our plant and you’ll notice the absence of shortcuts. Volatility and reactivity in unsaturated hydrocarbons demand rigorous, hands-on monitoring during distillation. 99% assay by GC comes standard for our lot, because even a percent or two shy can make trouble downstream in synthesis.

    The details in purification matter as much as reaction yield. For customers focused on cross-coupling or click chemistry, contaminants such as aromatic residues and water cause headaches. Continuous molecular sieving with quality glassware on-site limits moisture right at the bottling stage. Closed-loop analytics, coupled with batch tracking, rule out perceptible odor and discoloration—both red flags for sensitive organometallic processes. We’ve found the difference between lab-grade and industrial batches often boils down to attention paid during fractional distillation and storage, so we scale lab methods carefully.

    Application in Advanced Chemistry

    Our customers typically require 1-Hexyne for its triple-bond backbone. Take a Sonogashira coupling, where terminal alkynes unlock possibilities in building extended conjugated systems. Researchers in the field have used our 1-Hexyne in small-scale pharma screens as well as kilo-scale pilot projects leading to active intermediates. In specialty polymers, the triple bond activates towards nucleophilic addition, which opens doors for crosslinking and modification not possible with straight-chain alkanes or alkenes. Custom synthesis groups engaged in R&D lean on reproducible volatility and exact stoichiometry—traits easier to maintain when every unit leaving the drum matches spec.

    We stay in close contact with teams incorporating 1-Hexyne in stepwise syntheses. In these hands, overlooked side impurities can derail an experiment or cause unwanted byproducts. A robust QA loop, including NMR and GC-FID validation, underpins our confidence that results repeat not just in our facility but in customers’ labs around the world. In medicinal chemistry, the linear alkyne backbone serves as a modular scaffold for attaching aromatic or heterocyclic units, and performers in this space know how even slight solvent residuals can skew screening data.

    Understanding the Distinction Versus Alternatives

    1-Hexyne stands apart from its isomer, 3-Hexyne, with reactivity and product profile. The terminal alkyne moiety in 1-Hexyne reacts with greater predictability in coupling reactions, like those based on copper or palladium catalysts. Internal alkynes lack this charm—requiring harsher activation and sometimes resorting to protecting or silylating groups just to coax a similar level of performance.

    Compare 1-Hexyne to shorter and longer chain alkynes, and the story deepens. Shorter analogs like propyne or butyne may vaporize too quickly in an open system, posing fire and exposure risks that escalate as the scale increases. Our mid-length 1-Hexyne balances manageable volatility with sufficient chain length to build custom molecular architectures. Longer-chain homologs, on the other hand, begin losing the sharp, clean reactivity at the triple bond, which dampens efficiency in coupling and cycloaddition reactions. By selecting a C6 backbone, chemists operate in a sweet spot for both safety and performance, especially where routine fume extraction and closed reactors aren’t possible.

    Handling: Safety Through Experience

    We’ve witnessed both the promise and pitfalls of handling unsaturated hydrocarbons. Take 1-Hexyne: A flammable point at about room temperature requires practices set up from the ground up for safety. Double-walled drums, tight-sealing valves, and frequent headspace analysis prevent build-up or accidental venting. Our operators spend hands-on time during shifts, catching minor drips or signs of polymerization long before they spell trouble. This discipline passes straight to downstream users, as a cleaner starting material cuts the risk of runaway side reactions or difficult-to-purify mixtures.

    Our logistics team works closely with cold-chain providers to move larger lots safely across seasons. In the lab, chemists can avoid cold-box runs as long as storage containers stay dry and out of direct heat. By controlling batch history and transport details, we’ve seen fewer shipments with pressure build-up or cap corrosion—a real concern with less rigor. Building a supply chain around stability translates into fewer delays and surprises in the development queue.

    Quality as a Learned Standard

    Production of 1-Hexyne does not begin with feedstock acquisition. Stringent source testing for precursor alcohols and dehydration catalysts comes first. In our own operations, less-than-ideal catalysts sometimes sneak in and need purging from the system. Our chemical engineering group follows glass-lined reactor protocols, which limits leaching and unintentional catalysis during conversion and isolation. Each process tweak—above all, careful temperature ramping and reflux monitoring—comes from years spent recovering from surprises and unplanned shutdowns.

    Consistency crops up as the chief headache for anyone scaling up from bench to bulk. We swapped supplier lots and adjusted feed rates to match customer specs, only to find colormetric drift or trace halide content throw off sensitive downstream steps. Facing these challenges, our lead operators suggested segmental sampling and parallel QC records. Over time, these practices meant fewer customer queries about reliability, and more trust in scaling synthetic routes based on a single source.

    Regulatory Diligence and Safety

    Customers aiming for pharmaceutical markets or regulated R&D appreciate documentation. Besides the routine batch-specific COA, every lot ships out with clear chain-of-custody logs. Audits occasionally bring new trace requirements—like benzene or dioxane screening—and we adjust our in-house analytics to match. Regulatory pressure sometimes signals a rising demand for greener production. We’ve begun evaluating alternative dehydration agents and more energy-efficient distillation columns, sometimes facing initial setbacks but ultimately lowering environmental load per kilogram produced.

    Certain customers shoulder increased burden for transportation and storage, especially across country borders. Our compliance staff manages SDS updates, hazard labels, and all relevant ADR or UN shipment coding, leaning on real-world incident reports rather than theory. During one especially humid summer, extra care in headspace monitoring avoided an insurance nightmare from cap leakage. These lessons, collected by our team and shared through feedback loops, shape the next season’s protocols.

    Practical Advice for Users

    With 1-Hexyne, those doing bench work often benefit from smaller, purpose-filled containers to avoid degradation. From our own pilot lines, splitting volumes into amber-glass and nitrogen-flushed bottles kept the content fresher across several months. At scale, decanting through Teflon tubing and custom peristaltic pumps reduced worker exposure. These details, baked into our experience, now inform recommendations we pass to customers in regular technical exchanges.

    Whether customers set up for Grignard, click coupling, or combustion analysis, pure, dry 1-Hexyne behaves predictably, given moderate handling care. Short exposures at room conditions don’t cause rapid evaporation or unpleasant smells, provided stoppers seal well. We recommend running trial-scale reactions before committing larger volumes, using our technical grade matched to the same high bar. Down the line, process chemists benefit from knowing the supply lot profile, especially as purification gets more difficult with post-reaction mixtures.

    Building Alongside Customers

    We meet many returning buyers developing new drug scaffolds or sustainable polymers. Sometimes, demand spikes as synthetic methods open up in the literature. Our ability to ramp output in step with customer needs has kept research timelines moving, even under shortage pressure. We listen carefully to feedback about process bottlenecks: One group building large polyynes noticed solids in early spring deliveries, prompting us to upgrade winterization and improve filtration. Mistakes like this sting, but every recovered relationship helps us forge better systems.

    Insight into where and why 1-Hexyne stalls a project often comes from being embedded in our industry. Early-career chemists point out flash-point or odor concerns before they become real hazards, or highlight bottlenecks in scale-up. We adjust internal protocols after every credible incident, not just to cover ourselves, but so others can run their operations better equipped and with less downtime. Trust gets built more through responsive fixes than promises made on a data sheet.

    Supporting Future Innovation

    The role of 1-Hexyne in today’s fine chemical market keeps growing. As pharmaceutical pipelines turn toward functionalized triple bonds, the demand for this compound builds. Polymer science finds new uses for unique connectivity and rigidity that triple bonds deliver, while academic labs continue chasing unconventional reactivity from this modest six-carbon chain. We believe innovation starts with reliable basics—without a clean, consistent alkyne feedstock, even the best synthetic proposals languish in development.

    Green chemistry pressures our field like never before. Finding ways to lower solvent and waste output during purification led us to pilot microdistillation setups, energy capture, and solvent recycling, especially during large campaign runs. Partnerships with solvent reclaimers now let us close the loop further. Some customers value documentation for environmental reporting almost as much as purity, and we focus more each year on transparency in inputs, outputs, and energy use.

    Why Our Approach Matters

    Delivering 1-Hexyne is about more than stock and ship logistics. From engineering teams through to warehouse staff, our business runs on clear communication and shared lessons. Whether resolving minor slip-ups in packaging or innovating process controls to drive down solvent use, every adjustment roots back to direct, daily feedback. Years at the reactor line and countless troubleshooting calls with customers taught us what makes for a truly valuable supply partnership: transparency, adaptability, and willingness to admit mistakes as quickly as making advances.

    1-Hexyne, simple as it appears on paper, tests a manufacturer’s discipline and focus. Customers with genuine technical needs spot inconsistencies sooner than most, and over time we’ve come to treat their challenges as our own. Each day, the pursuit remains clear—collect deeper insight from field experience, build trust through transparency, and keep refining both product and service so that every shipment of 1-Hexyne consistently unlocks new chemistry, not new roadblocks.

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