Products

1,4-Dihydroxy-2-Butyne

    • Product Name: 1,4-Dihydroxy-2-Butyne
    • Alias: Butynediol
    • Einecs: 208-625-5
    • 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 435277
    Cas Number 110-65-6
    Molecular Formula C4H6O2
    Molecular Weight 86.09 g/mol
    Appearance Colorless to pale yellow liquid
    Melting Point -4°C
    Boiling Point 120-121°C
    Density 1.07 g/cm³ at 20°C
    Solubility In Water Miscible
    Refractive Index 1.466-1.468 at 20°C
    Flash Point 99°C
    Synonyms But-2-yne-1,4-diol
    Odor Faint, characteristic
    Storage Temperature 2-8°C (Refrigerated)
    Vapor Pressure 0.38 mmHg at 25°C

    As an accredited 1,4-Dihydroxy-2-Butyne factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 100 grams of 1,4-Dihydroxy-2-Butyne, securely sealed, with hazard labeling and safety handling instructions.
    Shipping **Shipping Description for 1,4-Dihydroxy-2-Butyne:** Shipped in tightly sealed, chemically resistant containers, 1,4-Dihydroxy-2-Butyne should be protected from light, heat, and moisture. Proper labeling in accordance with relevant chemical regulations (such as UN, DOT, or IATA) is required. Handle with care, using appropriate safety measures to prevent leaks or spills during transit.
    Storage **1,4-Dihydroxy-2-Butyne** should be stored in a tightly sealed container, away from light, heat, and sources of ignition. Keep it in a cool, dry, well-ventilated area, separated from strong oxidizers, acids, and bases. Properly label the container and use secondary containment to prevent leaks or spills. Store in accordance with local regulations and material safety data sheet (MSDS) guidelines.
    Application of 1,4-Dihydroxy-2-Butyne
    Purity 99%: 1,4-Dihydroxy-2-Butyne with 99% purity is used in pharmaceutical synthesis, where it ensures high-yield and low-impurity formation of active ingredients. Melting Point 53°C: 1,4-Dihydroxy-2-Butyne with a melting point of 53°C is used in specialty coatings production, where consistent melting provides uniform film application. Viscosity Grade Low: 1,4-Dihydroxy-2-Butyne with low viscosity grade is used in adhesives formulation, where enhanced flow properties improve substrate penetration. Molecular Weight 86.09 g/mol: 1,4-Dihydroxy-2-Butyne with molecular weight 86.09 g/mol is used in chemical intermediate manufacturing, where it allows accurate stoichiometric calculations for reaction efficiencies. Stability Temperature 120°C: 1,4-Dihydroxy-2-Butyne with stability up to 120°C is used in high-temperature polymerizations, where thermal robustness minimizes degradation byproducts. Particle Size <20 µm: 1,4-Dihydroxy-2-Butyne with particle size less than 20 µm is used in fine chemical blends, where small particles increase reactivity and homogeneity. Water Solubility High: 1,4-Dihydroxy-2-Butyne with high water solubility is used in aqueous catalyst systems, where it ensures rapid dissolution and optimal catalyst distribution. Residual Acetylene <0.1%: 1,4-Dihydroxy-2-Butyne with residual acetylene below 0.1% is used in specialty polymer additives, where minimized impurities prevent side reactions. Storage Stability 12 Months: 1,4-Dihydroxy-2-Butyne with 12 months storage stability is used in commercial batch processes, where long shelf life reduces inventory loss. Color Index Low: 1,4-Dihydroxy-2-Butyne with low color index is used in optoelectronic materials, where transparency or color neutrality is critical for device efficiency.
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    Certification & Compliance
    More Introduction

    1,4-Dihydroxy-2-Butyne: A Key Intermediate, Straight from the Plant Floor

    Practical Value in Every Drop

    Producing 1,4-dihydroxy-2-butyne is a balancing act between chemistry and consistency. Our team works directly with raw material suppliers, manages every batch, and controls every step from feedstock selection to purification. We know the value comes not just from hitting a purity target, but from shaping each run so it fits right into your process without surprises. 

    In our facility, each batch of 1,4-dihydroxy-2-butyne meets both in-house benchmarks and real-world feedback drawn from conversations with users in pigments, pharmaceuticals, and electronics. Our approach favors hands-on adjustments. This might mean modifying catalyst loads, adjusting temperature curves, retesting, or tightening our water control during distillation. By walking the line between theory and plant-floored reality, we keep problems—like heavy ends, coloration, or unpredictable isomer content—out of your vessel and out of your way.

    Why Consistency Trumps Everything

    You won’t find us trading on commodity cycles or trying to pass off reconditioned lots. Our batches run on technology we’ve incrementally improved through actual experience, not just catalog promises. 

    If a dye or agrochemical customer asks for a specification, we build the process to beat that mark, not just hit it by accident. In batch operations, even a half-point swing in assay can wreck a downstream reaction. Several years ago, we discovered trace chloride content led to sporadic side reactions in one customer’s organometallic synthesis. We traced this to a cleaning step mid-campaign and requalified our water source. Even now, our lab screens each batch with these learning moments in mind, not just ticking boxes but actually running tests that correspond to usage, not abstract figures.

    Model and Standard We Deliver

    Our standard production provides 1,4-dihydroxy-2-butyne with a minimum assay of 98%. Most runs clear 99%. We verify moisture by Karl Fischer titration, as even half a percent extra water can shift yields or interfere with catalytic processes. 

    Routine screens track known byproducts. We share these results up front—not hidden five pages deep in a technical data sheet. 

    We ship in purified liquid form, packaged to match your needs and scale. We plan the packaging not just for storage and shipping, but for ease of transfer to reactors. No accidental venting, no crimped containers. Bulk tanks or drums, every unit is sealed from contamination and sampled for return analyses before sign-off by either side.

    Core Applications: Firsthand Observations

    Anyone using 1,4-dihydroxy-2-butyne in real-life synthesis knows it behaves differently than diaryl acetylenes or simple glycols. Its value lies in the conjugated alkyne, carrying electron density where you want it for efficient coupling, cycloaddition, or halogenation. Our chemists and scale-up operators have run test reactions for custom work in pharmaceuticals, mainly in small molecule development, and seen clear batch-to-batch differences depending on how carefully we ran the early steps.

    Dye and pigment synthesis remains one of its major homes. Because we keep the conjugation and acetylenic hydrogen so pure, you avoid the slack yields or off-shade products that sometimes pop up with reprocessed intermediates. Our batches perform with an even reaction profile, so you get what you expect, not ‘mystery conversion’ on the back end.

    For specialty polymer work, such as synthesis of cross-linked systems or functionalized polyethers, our users appreciate that our grade does not drag in excess diols or formaldehyde. We do not cut corners with cheaper glycol backfeeds just to drive down the price. Instead, we keep side-chain distribution tight so that downstream reactions stay clean.

    We have worked with drug manufacturers looking for acetylene intermediates that will not introduce unpredictable residue or tars. One client, seeking cryptic function for an early-stage oncology compound, benefited greatly from our low-halide batch. Another, in the photovoltaic field, cited our near-absence of carbonyl-containing byproducts as key to reproducibility in photoactive layers.

    Differences From Other Sources

    Buying from an actual manufacturer—rather than through endless hands—cuts out guesswork on traceability, origin, and true specifications. We stand behind every batch, because we can. We know where the crude came from, what catalyst batch seeded the run, and which quality controls cleared the lot.

    We have sampled so-called ‘comparable’ products from secondary markets. Many fail on moisture, showing visible stratification or drop formation. Some show yellowing, suggesting iron contamination picked up in vessels or piping—common when shipped from facility to broker to end user. Some products even come ‘blended’ from multiple campaigns, giving assorted impurity fingerprints across a single drum. If you need every percent of acetylene function for your process, these differences show up immediately.

    Because we synthesize our own material, we keep flexible production windows for custom purifications. This means adjusting our wash or distillation regimes to match unique requirements sent to us by formulating customers. We built the plant for this, not to run generic multipurpose chemistry. The feedback we collect—sometimes in the form of complaints, not compliments—drives each process upgrade directly.

    Customers ask not just for a liquid chemical, but for a partner who knows the feeling of having a critical batch delayed, a reactor fouled, or a six-figure custom order flop due to marginal intermediates. Our goal is to keep every lot tight, to answer direct questions with specific numbers and back them up with retained samples, not just paperwork.

    Solving Problems at Scale

    Scaling acetylene chemistry invites hazards—from pressure spikes, to impure gas feeds, to polymer residue. In running our facility, we took the time to design reactor trains from materials compatible with base- and acid-catalyzed reaction zones. Glass columns prevent trace metal leaching. Every pump and line undergoes routine leak screening with organoleptic sniff tests and gas-phase monitoring. When we find errant readings—be it a leaky seal or an off-spec temperature climb—we halt and fix, not just write up in a report.

    We learned, sometimes the hard way, never to over-rely on theory alone. A single packed column out of calibration led to a run with off-assay readings and a week of rework. Since then, every column gets recharged on a regular schedule, and every shift logs direct readings. In the rare event of a customer complaint, we go straight to the sample vault and trace the entire production path, not just check product against a stock certificate.

    Over the years, several customers have come to us with problems from other suppliers’ batches—unexpected residue in high-temperature reactions, or even unexplained product loss. In one instance, faulty crude handling at another plant led to an end-customer having to withhold a product launch after sulfur residues ruined the final step. After switching to our source, and sharing spec-by-spec notes, their process stabilized with no more mystery dropouts.

    Supporting Research and Development

    Many of our staff started in plant roles, scale-up labs, or development benches. This shapes how we respond to inquiries from researchers who want a product that does what it promises. We work with direct feedback from trial runs—sometimes joining Teams calls or in-person visits with process chemists debugging a reaction. We go beyond showing COA sheets. We share experience drawn from real use, and sometimes even flag issues we have seen in our tests that a data sheet wouldn’t reveal.

    We keep sample stocks to reproduce minor impurities or demonstrate a side reaction someone expects. If a partner needs a milligram to demonstrate a method, we do not send stale product—fresh material drawn direct from our drums goes out, matching what will arrive in scale. In pharma projects, compound integrity—without decomposition or peroxyacetic side formation—can be the difference between a successful round or wasted investigation. We know what is at stake.

    If a customer wants to push boundaries, like testing acetylene-ene reactions or rare ring closures, our support moves beyond the factory. We have connected scientists from different projects to share observations, or even passed along tips for catalyst loads or solvent swaps found through our own discoveries.

    Environmental Responsibility in Production

    We do not stop innovation at the product alone. In the production of 1,4-dihydroxy-2-butyne, acetylene generation and handling drive up safety risks and require conscious effort to curb emissions. We have invested in abatement traps, gas purification loops, and on-site capture of spent process fluids. These investments did not come for free. Every upgrade is meant to keep both staff and local communities safer, while shrinking waste streams into manageable, verifiable forms. Regulators walk our line, check our logs, witness our scrubbers, and see the changes over time.

    Any off-specification or solvent-heavy batch is not simply dumped or ignored. We work with licensed handlers, not for lowest-cost disposal, but for verifiable destruction or recycling of hazardous residues. Our staff have received direct training both on the regulations and on best practice in mitigating real-world spills or upsets. Compliance meets practicality here: runaway waste hurts everyone, so we tackle every campaign with the records to prove what happened and why.

    Market Perspective from the Factory Floor

    We witness price swings, supply disruptions, and surges in demand from new technologies—like battery or photovoltaic research—and we don’t just pass on the impact through spot quotes. We keep finished stock buffers tight but responsive, and we communicate with customers ahead of time if we forecast swings in available volume. Regular dialogue with our buyers lets us manage campaigns to match up with actual project timelines, not just abstract forecasts.

    Traders may talk flexibility, but at the manufacturing level, agility means knowing not just when to ramp up a reactor, but when to pause, rethink, and even redesign a run to avoid waste. Lack of communication and real-world context have led to mistakes across the industry—we’ve learned that an extra day of production to get a batch right can prevent six months of headaches at the far end. We run our facility this way because it is what we expect from our own suppliers as well.

    Feedback Loop: Learning Every Campaign

    Years of making 1,4-dihydroxy-2-butyne in evolving market conditions have taught us that small improvements lead to big differences in your results. We tweak not for novelty alone, but to remove pain points from the end-user side. Any complaint comes straight back to the plant team. We check every valve and column, review distillation curves, and take corrective steps seen through the eyes of someone relying on every drop to work precisely.

    Our quality control doesn’t stall at paperwork. We keep product samples for every lot for months. If a claim comes in, we analyze, cross-reference logs, and follow up with both technical and practical advice—sharing experiment design tweaks or actual process changes that may help. If a user’s reactor changes size, feed rate, or solvent system, we try to mimic these in our own trials before updating a process guide or selling new lots.

    Big improvements, whether in color, clarity, purity, or stability, come from attention paid at every level—not from luck or shortcuts. Staff from every part of our plant—from operators to advanced analytic chemists—can point to an ‘aha’ moment where fine-tuning made all the difference. These moments add up to the product you receive, not to just what is sent on a specification sheet.

    Working Together to Achieve Reliable Outcomes

    We believe that anyone buying 1,4-dihydroxy-2-butyne deserves more than a drum packed to specification. Real users want answers they can trust, troubleshooting from people who have run the same reactions, and transparency about how the batch was made and managed. 

    We build our product and our customer relationships on the same foundation—direct experience, honest dialogue, and a respect for what can go wrong if anyone gets lazy. Each campaign teaches us something new, and each customer query is seen as a chance to raise the bar on consistency, purity, and practical performance.

    From our side of the production line, every order is an opportunity to validate what we do. If you value a supplier that lives its chemistry from raw material to finished vessel—learning with each run, sharing both setbacks and breakthroughs—then we look forward to working closely with you. We know what it’s like to depend on things going right the first time, because every campaign matters to us as much as it does to you.

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