Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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3-Buten-2-One

    • Product Name 3-Buten-2-One
    • Alias Methyl Vinyl Ketone
    • Einecs 203-653-1
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    341337

    name 3-Buten-2-one
    IUPAC_name But-3-en-2-one
    molecular_formula C4H6O
    molar_mass 70.09 g/mol
    appearance Colorless liquid
    density 0.847 g/cm³
    boiling_point 80-82 °C
    melting_point -85 °C
    flash_point 2 °C
    CAS_number 110-94-1
    SMILES C=CC(=O)C
    solubility_in_water Miscible
    refractive_index 1.425
    vapor_pressure 62 mmHg (20 °C)

    As an accredited 3-Buten-2-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 500 mL, with secure screw cap; labeled with hazard symbols, chemical name "3-Buten-2-one", and handling instructions.
    Shipping 3-Buten-2-one should be shipped in tightly sealed containers, protected from light, heat, and sources of ignition. It must comply with hazardous material regulations due to its flammability. Transport in accordance with local, national, and international guidelines, and ensure proper labeling, documentation, and use of compatible, chemical-resistant packaging.
    Storage 3-Buten-2-one should be stored in a tightly closed container, in a cool, dry, well-ventilated area away from sources of ignition, heat, and direct sunlight. Store separately from oxidizers, acids, and bases to prevent hazardous reactions. Use appropriate chemical-resistant containers and ensure clearly labeled storage. Secondary containment and proper ventilation are recommended to control vapors and prevent accumulation.
    Application of 3-Buten-2-One

    Applications of 3-Buten-2-One in Industrial Manufacturing

    As a direct manufacturer of 3-Buten-2-One, we deliver material that supports precise industrial production in select high-value chemical sectors. Below are specific, field-tested application scenarios highlighting this intermediate’s established roles in downstream integration, with focus on formulation parameters, regulatory compliance, exact points of process uptake, and the resulting end products in the global market.

    1. Agrochemical Intermediate Synthesis

    Agrochemical producers leverage our 3-Buten-2-One as a key building block in the construction of advanced herbicide and fungicide active ingredients. The α,β-unsaturated ketone structure is vital for Michael addition and cyclization reactions unique to modern crop protection product synthesis. Plant-scale users typically route the material into stage-one condensation steps, creating core scaffolds for further functionalization and selectivity post-treatment. Efficient and reproducible transformation hinges on controlled feed ratios and traceability, given stringent regional crop protection laws and product registration requirements.

    Industry compliance standards

    • EU Regulation (EC) No 1107/2009 on Plant Protection Products
    • US EPA FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) registration protocols
    • ISO 9001:2015 Quality Management for chemical intermediates
    • REACH registration for upstream intermediates (REACh Annex VII)

    Typical usage ratio

    • 5–20% molar equivalent relative to primary amine or nucleophilic co-reactant; precise ratio set based on target active structural requirements and conversion optimization

    Downstream process integration

    • Charged to initial condensation reactor under nitrogen, prior to in situ derivatization and catalyst introduction

    Final product types

    • Selective herbicides for grains and oilseeds
    • Systemic fungicidal actives used in orchard and vineyard protection
    • Intermediates for phenoxyacetic acid type weed controls

    2. Fragrance and Flavors Synthesis

    Leading aroma chemical companies employ 3-Buten-2-One as a precursor for the controlled synthesis of specific macrocyclic ketones and lactones—a foundational class in both fine fragrance compounds and selected food-grade flavoring agents. The material’s high purity ensures downstream olfactory quality and reproducibility, with regulatory traceability essential for batch release in sensitive sensory applications. The integration follows precise Grignard or Aldol reaction pathways, where carbon backbone extension determines the finished molecule’s volatility and scent/flavor tone.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards
    • EU Regulation (EC) No 1334/2008 on Flavorings
    • US FDA 21 CFR Part 172 (Food Additives Permitted for Direct Addition to Food for Human Consumption)
    • ISO 9001:2015 with traceability for food and fragrance manufacturing

    Typical usage ratio

    • 10–40% w/w relative to total carbonyl input in ketone cyclization steps; adjusted by batch scale, chain length targets, and yield optimization

    Downstream process integration

    • Introduced at the initial macrocyclization reaction; often fed continuously in controlled addition to manage reaction rate and minimize side product formation

    Final product types

    • Macrocyclic musk ketones for perfumes
    • γ- and δ-lactone food flavor ingredients
    • Functionalized aroma chemicals for air care formulations

    3. Pharmaceutical Chemical Synthesis

    Custom synthesis and scale-up divisions in the pharmaceutical sector use 3-Buten-2-One as an enabling intermediate in targeted API manufacturing, particularly in the construction of α,β-functionalized ketone and lactam rings. The material’s reactivity supports high-purity heterocycle formation critical for patent-protected therapies. Production lines typically route the raw material into controlled Michael addition or selective reductive amination sequences. Documentation of GMP-grade input and in-process QC are non-negotiable in regulated medicine manufacturing.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • USP-NF and EP monograph compliance for intermediates
    • 21 CFR Part 210/211 (Current Good Manufacturing Practice for Finished Pharmaceuticals)
    • ISO 13485:2016 for medical device-related APIs

    Typical usage ratio

    • 3–15% molar proportion in route-specific ring synthesis or carbon backbone elongation; variation depends on yield control and API impurity profile settings

    Downstream process integration

    • Metered into batch or flow reactor after solvent charging, prior to substrate-coupling or reductive work-up step

    Final product types

    • Intermediate substances for CNS drug candidates
    • Building blocks for cephalosporin and β-lactam antibiotics
    • Pharmaceutical intermediate standards for custom synthesis programs

    4. Polymer and Specialty Resin Manufacturing

    Advanced material industries incorporate our 3-Buten-2-One in the synthesis of high-performance specialty polymers, leveraging its conjugated unsaturation for functional group incorporation during resin backbone formation. Polymer chemists typically utilize the material as a co-monomer or as a chain transfer agent in emulsion polymerization, which enables the fine-tuning of molecular weight and crosslinking density. Regulatory-driven process control is essential due to downstream use in regulated plastic and adhesive applications, and all batches ship with full CoA traceability.

    Industry compliance standards

    • EU Regulation (EU) No 10/2011 for Food-Contact Plastics (migration limits on raw materials)
    • ASTM D256 and D638 (Plastic and Resin Mechanical Properties)
    • ISO 14001 Environmental Management (responsible chemical handling)
    • REACH SVHC monitoring for raw material input

    Typical usage ratio

    • 1–5% w/w in copolymer or resin formulations; ratio set according to polymer target properties, end-use certification needs, and process reactivity control

    Downstream process integration

    • Added following initial monomer dissolution, immediately prior to polymerization catalyst dosing during bulk, solution, or emulsion polymerization

    Final product types

    • Functionalized acrylic and vinyl resin adhesives
    • Specialty coating polymers for electronics and automobiles
    • Modified plastic films with advanced gas barrier or printability features
    Free Quote

    Competitive 3-Buten-2-One prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    3-Buten-2-One: Practical Perspectives from the Production Floor

    Understanding 3-Buten-2-One from a Manufacturer’s Viewpoint

    Working at the source, day in and day out, means getting to know a chemical beyond the catalog. 3-Buten-2-one, known around the shop as methyl vinyl ketone, stands out with its clear, colorless liquid form and sharp, acrid odor that doesn’t let you forget you’re handling strong stuff. Its chemical structure, CH2=CHCOCH3, makes it an alpha, beta-unsaturated ketone. This gives it much more than textbook appeal; it brings real-world reactivity and a reliable backbone for synthetic chemistry.

    Our production teams watch every batch, fine-tuning reaction conditions, and keeping impurities in check. Standard models come at >99% purity, but we also support custom grades, depending on end-use and customer requirements. It's not a product where we compromise on consistency, because downstream errors get expensive fast.

    What Sets 3-Buten-2-One Apart

    As a chemical manufacturer, we see a lot of ketones roll through our lines each year. Many bring unique features, but 3-Buten-2-one stands out for two reasons: its conjugated alkene group and its electrophilic carbonyl function. These traits make it an essential building block for many organic syntheses. In practice, the chemistry on our floor mirrors what’s reported in research: nucleophilic additions click into place with precise conditions; polymerization tests our containment strategies; addition reactions demand a close eye on temperature and dosing.

    Unlike saturated ketones such as acetone, 3-Buten-2-one’s double bond introduces heightened reactivity, making it irreplaceable for introducing carbon–carbon bonds in organic synthesis. We’ve seen its demand spike in pharmaceutical intermediates where alternative ketones fall short, particularly where the double bond is needed in the target molecule. Its crossover into agrochemical research makes it more than a niche solvent or flavor ingredient.

    Minute shifts during storage or shipment can alter its reactivity profile. This is the reason we take corrosion resistance and vapor management seriously. The product’s tendency to polymerize or react with nucleophiles means we build redundancy into drum linings and vapor control systems. Many containers that suit typical ketones won’t prevent polymerization or product loss—another difference buyers only notice after expensive off-spec incidents. We’ve made changes to inventory management and quality control over the years, favoring small-lot shipping and tight tracking.

    Key Uses Across Industries

    In flavor and fragrance manufacturing, trace quantities deliver punchy, green notes or fresh character in aroma blends. The reactivity of the double bond means formulators can graft functional groups with precise control. These reactions are unforgiving: a little too much base, or oxygen leaks, and the end result goes sideways—performance and safety both take a hit. Our technical support works directly with R&D teams to adjust specs and troubleshoot blends, a practice that has avoided countless production stops.

    Pharmaceutical producers choose 3-Buten-2-one when synthesizing vitamin precursors, hormone analogues, or anti-cancer drug intermediates. Fine-tuning reaction variables—pressure, temperature, time—is as much craftsmanship as science. The ketone’s molecular architecture allows for targeted modifications, something that alternative compounds can’t replicate without multi-step synthesis, driving up cost and waste. Having handled process improvement projects for over a decade, we know that while this compound has its learning curve, the yield lift more than justifies the investment in safety and process upgrades.

    Among polymer chemists, the product holds value in chain-extension, cross-linking, and polymer modification reactions. It participates in Michael additions and Diels-Alder reactions useful for manufacturing specialty elastomers. With this compound, the line between small molecule and polymer feedstock blurs. We support technical trials and pilot-scale runs, sometimes even blending on-site to limit transit degradation. These hands-on adjustments have improved product performance and waste management across a range of customer operations.

    Even in analytical chemistry, we watch researchers use 3-Buten-2-one as a derivatization agent, often in environmental testing labs. Sensitivity and selectivity benefit from its functional groups, and we focus on keeping ultra-low impurity levels for these specialized clients. Their feedback helps us tune our purification processes, and, more than once, directed upgrades to our distillation systems.

    Handling and Storage: Lessons Learned

    What folks don’t always know before running their first full-scale batch is just how much the handling protocols impact quality. The compound’s high vapor pressure means that typical drum closures can’t always hold up. Early in our production history, we had cases where product loss or polymerization at the cap led to material failures. Now, vented closures and inert gas blanketing are standard—these changes cut back loss rates and minimized off-spec returns.

    Safety is personal here. 3-Buten-2-one irritates skin and respiratory systems, and even small leaks in the drum room get noticed fast. New hires get hands-on PPE training and learn spill response through real-world drills. We’ve upgraded our ventilation and monitoring systems, using real-time vapor detectors and remote activation for emergency fans in the event of spills. Each incident, even near misses, gets reviewed for systemic causes. Changes like extra eye wash stations and secondary containment trays came from stories on the floor, not just rule books.

    Cold-chain logistics don’t always get mentioned, but we’ve had off-gassing and product degradation in hot summer months during transit. Insulated tanker trucks, temperature logging, and electronic seals now form the basics for our shipping strategy. Customers in warm climates see definite improvement in shelf life and product consistency after we rolled out these changes.

    Quality Considerations in Real Manufacturing Environments

    Meeting a standard is only half the battle; holding to 99+% purity means double-checking each part of the process. Downstream effects matter—the tiniest impurity can throw off a pharmaceutical synthesis or skew lab results in an environmental study. Our QA/QC teams run gas chromatography and NMR checks past the finished drum, not just random samples. When a customer flags a product or requests an atypical spec, our teams run limited pilot batches and redesign process steps if that’s the best way to meet them. That’s not extra work; it’s what keeps partnerships strong and waste minimal.

    Years back, we learned that certain older plant components were leaching trace metals into finished runs. Only after collaborating directly with customers’ technical staff did we identify the issue and overhaul our finishing equipment. The headache paid off: fewer customer complaints, less internal rework, and better yields for everyone downstream.

    Trace water content is enemy number one for polymer applications, so we invested in additional drying steps and real-time Karl Fischer titration. On the flip side, for flavor or pharmaceutical clients, we sometimes hold back on drying to control reactive side products. Such tuning comes from listening to customers—not from product spec sheets alone.

    Comparing 3-Buten-2-One with Other Ketones

    From a hands-on perspective, 3-Buten-2-one works differently than more pedestrian ketones like acetone, methyl ethyl ketone (MEK), or cyclohexanone. Its vapor is more aggressive, it shows a stronger tendency to react with nucleophiles, and it sparks polymerization more easily. These differences often mean tighter safety controls and faster process design cycles.

    Acetone fills its role as a solvent but lacks the conjugated double bond, so it won’t cut it in Michael addition or conjugate addition scenarios. MEK carries more volatility but less reactivity for specialized synthesis. Cyclohexanone’s saturated ring brings value as an intermediate but won’t match the versatility in building unsaturated frameworks. 3-Buten-2-one’s unique structure, combining a vinyl group and carbonyl, simply opens doors these others can’t without workarounds.

    Down the line, these differences translate into better efficiency for Michael reaction chains, more robust options for synthetic routes, and fewer steps in target molecule construction. With a product as reactive as this, lab innovation directly shapes commercial production, driving collaborative problem-solving between our tech staff and our customers’ research teams.

    Supporting Sustainable and Responsible Production

    Operators handle this material with respect. Early in our adoption, ventilation and emissions stayed high on the agenda. We invested in carbon adsorption systems, and switched from open-batch transfer to closed-loop loading. These decisions not only meet regional regulatory demands but also keep our own teams safer and ensure that neighbors aren’t affected by offsite vapor drift.

    Solvent recovery is no longer optional. We strip residual 3-Buten-2-one from wash cycles and solvent blends, recover usable product, and refine waste for energy recovery or responsible disposal. Over the years, this has cut our hazardous waste volumes and boosted internal product yields. Feedback from environmental audits shaped some of our best upgrades. What looks like a compliance expense in the early years now shows up as a cost savings and a selling point with smarter customers.

    We talk constantly with downstream users about opportunities for safer handling, alternative solvents, and ways to reduce exposure risk. These lessons flow both ways; customer feedback often drives small but vital tweaks to our QA protocols, supply chain redundancies, and logistical support. Working relationships improve, plant safety improves, the product stays reliable, and concerns about emissions or unexpected reactivity diminish.

    R&D and Product Development: Manufacturer’s Approach

    Our R&D department runs more than theoretical studies. We’ve scaled reactions from 100 grams in a lab vessel to several tons in a commercial reactor. New purification methods, or green chemistry alternatives for traditional reagents, seem promising on paper but separate themselves in real production trials. Failures tell us as much as successes: sometimes a catalyst that works at the bench scales poorly, or impurity buildup sabotages yield on extended runs.

    One of our more successful changes involved moving from mixed-metal catalysis to a single-metal route, reducing unwanted byproducts. Yields improved, and downstream simplicity increased, with less frequent purification cycles. Our technical team tracks not just reaction efficiency, but also downstream impacts like plant safety, container suitability, and ease of user handling across the logistics chain. Each process improvement sees input from chemical engineers, operators, and the business side, making sure upgrades stick before wide-scale rollout.

    Customers with unusual requirements challenge us to stretch our technical range: ultra-high-purity product for advanced pharmaceutical projects, or small-lot batches for experimental flavor and fragrance applications. These projects have stretched what we thought possible and pointed toward industry gaps still to be filled. In many cases, customer-led projects spawned changes to standard specs for our entire product line, raising the bar industry-wide.

    Addressing Challenges Head-On

    Producing and shipping 3-Buten-2-one has taught us where the real challenges lie. Polymerization during transit, sensitivity to atmospheric oxygen, and trace water uptake all eat into yield and consistency. Managing these risks involves more than packaging upgrades: now, we use digital recordkeeping for every lot that leaves the plant, link live temperature monitoring to our logistics dashboards, and maintain spare inventory at regional distribution sites to avoid shipment delays due to quality checks.

    Partnering with suppliers and customers, we hosted several industry forums to pool lessons learned about best practices, regulatory updates, and emerging hazards. Such open discussions have driven cross-industry safety improvements and reduced accident rates. Everyone benefits when knowledge circulates instead of staying siloed. Walk-throughs of our facilities by customer QA leaders, coupled with joint troubleshooting sessions, have uncovered subtle risks that might have been missed by either side working alone.

    No process runs without hiccups. During periods of raw material shortage, or rapid changes in international shipping regulations, our experienced teams have pivoted to alternative sourcing and shipping pathways, ensuring customers receive the product as expected. These contingency plans stem from direct experience, not only from market speculation or off-the-shelf solutions.

    Focus on the Future: Continuous Improvement in Manufacturing

    Technology isn’t static, and neither are we. Process automation, improved catalysis, and digital monitoring are daily conversations, not future dreams. There’s been a marked shift toward reducing the human workload for high-risk operations—automated reaction charging, remote process start-up, and real-time reaction diagnostics have taken root following insights from both in-house and industry incidents.

    Sustainability has grown from a compliance necessity to a core value. Initiatives like heat integration, waste minimization, and onsite energy recovery might start out small but build up significant cost savings and risk reduction. With each improvement, we notice better process control and, almost always, better product consistency.

    Customers today demand more transparency about sourcing, process controls, and environmental performance. We’ve opened access to safety data, production records, and compliance certificates, and host traceability workshops for downstream partners. Such practices build trust, speed up audits, and support stronger long-term relationships.

    Our Commitment: Chemical Manufacturing as Collaborative Problem-Solving

    We’ve learned that chemical manufacturing isn’t only about what can be made in a flask or reactor—it’s about supporting the entire chain, from the plant floor to the user’s lab or processing line. Working with 3-Buten-2-one, in particular, has required flexibility, honesty about what works and what doesn’t, and a willingness to share lessons learned both in-house and with partners.

    A product as reactive and valuable as 3-Buten-2-one draws out the best in manufacturing and collaborative spirit. Users rely on us for technical support, rapid problem-solving, and a commitment to delivering quality every time. Internally, our teams never stop learning, whether it’s from fielding customer queries at odd hours, running pilot test batches at short notice, or updating SOPs to match new findings from the lab or the loading dock.

    By putting technical knowledge to work, adapting to customer feedback, and constantly raising the bar, our operations continue to evolve. Working with 3-Buten-2-one isn’t just a line item—it’s an ongoing commitment to safety, quality, and real-world results.