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

    • Product Name 1-Penten-3-One
    • Alias 1-Pentene-3-one
    • Einecs 212-191-7
    • 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

    792572

    Cas Number 1629-58-9
    Iupac Name pent-1-en-3-one
    Molecular Formula C5H8O
    Molecular Weight 84.12 g/mol
    Appearance Colorless to yellow liquid
    Boiling Point 102-104 °C
    Melting Point -88 °C
    Density 0.845 g/cm³ at 20°C
    Flash Point 20 °C
    Solubility In Water Slightly soluble
    Refractive Index 1.425 - 1.427
    Vapor Pressure 38 mmHg at 25°C
    Odor Strong, pungent

    As an accredited 1-Penten-3-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 1-Penten-3-One is packaged in a 100 mL amber glass bottle with a secure screw cap, labeled with hazard and identification information.
    Shipping 1-Penten-3-One is shipped in tightly sealed containers, under cool, dry, and well-ventilated conditions. The chemical is protected from heat, sparks, and direct sunlight during transport. It is classified as a flammable liquid and must be handled according to relevant hazardous material regulations. Proper labeling and documentation are required for safe shipping.
    Storage 1-Penten-3-one should be stored in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and direct sunlight. Keep the container tightly closed and clearly labeled. Store away from incompatible substances such as strong oxidizers and acids. Use appropriate chemical storage cabinets for flammable liquids, and ensure spill containment measures are in place to prevent leaks or accidental releases.
    Application of 1-Penten-3-One

    Applications of 1-Penten-3-One in Industrial Manufacturing

    1-Penten-3-One serves as a critical intermediate for various chemical synthesis pathways across multiple manufacturing sectors. As the direct manufacturer, we supply high-purity grades tailored for specialized downstream integration. Below are detailed industrial application scenarios in which our material delivers proven performance aligned with regulatory and process requirements.

    1. Pharmaceutical Active Intermediate Synthesis

    In pharmaceutical chemistry, 1-Penten-3-One functions as a building block for synthesizing carbonyl-containing heterocyclic intermediates. Its α,β-unsaturated ketone structure enables selective Michael addition or condensation during the preparation of active pharmaceutical ingredients (APIs), such as anti-viral or anti-inflammatory compounds. Our production ensures consistent lot-to-lot quality, supporting high-yield medicinal synthesis and downstream purification steps mandated by finished drug standards.

    Industry compliance standards

    • ICH Q7 GMP Guidelines for Active Pharmaceutical Ingredients
    • USP, EP, JP monographs on API purity and residual solvents
    • EudraLex Volume 4: Good Manufacturing Practice
    • FDA 21 CFR Part 210/211, applicable for US-bound APIs

    Typical usage ratio

    • 5–20% molar ratio relative to core substrate, adjusted per target API yield and reactivity

    Downstream process integration

    • Introduced at the early condensation or cyclization stage of small-molecule API synthesis
    • Combines with amines, hydrazines, or other nucleophilic partners under controlled pH and temperature
    • Residuals removed during intermediate purification via liquid–liquid extraction or distillation
    • Final intermediates assayed for key impurity controls and identity confirmation

    Final product types

    • Non-steroidal anti-inflammatory drug intermediates
    • Heterocycle precursors for anti-viral drugs
    • Pharmaceutical fine chemical intermediates for CRO/CDMO
    • Bulk APIs for generics and license production

    2. Agrochemical Precursor Production

    Manufacturers in the agrochemical sector use 1-Penten-3-One as a core reactant in the synthesis of selective herbicide and fungicide intermediates. Its chemical reactivity enables formation of quinoline or pyridine ring systems, which downstream converters functionalize into active crop protection agents. Reliable supply and analytical support from our end allow precise control over batch-to-batch contaminant levels and appropriate nitration or haloalkylation reaction sequences.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products (JMPS)
    • ISO 9001:2015 quality assurance in raw material sourcing
    • REACH Annex VII/VIII chemical registration for Europe
    • China GB/T 1604 for agrochemical intermediates

    Typical usage ratio

    • 2–15% mass ratio based on reaction efficiency and specific downstream active ingredient

    Downstream process integration

    • Added as the olefinic starting ketone in a closed reactor for ring closure reactions
    • Reacts under basic or acidic catalysis with other aldehydes or amines to form heterocyclic cores
    • Followed by purification and conversion steps, such as chlorination or oxidation
    • Quality control by GC-MS to quantify unreacted starting material and residual solvents

    Final product types

    • Precursor intermediates for triazole or pyridine-based fungicides
    • Core structures for phenoxy acid herbicides
    • Active ingredient building blocks for insect growth regulators
    • Specialty fine intermediates for agrochemical research

    3. Fragrance and Aroma Ingredient Manufacture

    The flavor and fragrance industry utilizes 1-Penten-3-One as a synthesis precursor for high-impact aroma compounds. Its unique odor profile and reactive carbonyl group permit targeted aldol condensation and hydrogenation steps, leading to ketones and alcohols used in natural fruit or green note formulations. Companies blending liquid or encapsulated aroma systems favor our product for its controlled volatility and consistent purity.

    Industry compliance standards

    • IFRA Code of Practice and restrictions on α,β-unsaturated carbonyls
    • EU Regulation (EC) No 1334/2008 for flavoring substances
    • US FDA 21 CFR 172.515 for food additive status where applicable
    • ISO 9001:2015 documented traceability in supply chain

    Typical usage ratio

    • 0.2–10% weight in aroma synthesis batches, adjusted for target intensity and downstream derivative volatility

    Downstream process integration

    • Feeds into initial condensation with aldehydes or phenols, under controlled catalyst loading
    • Followed by partial hydrogenation or acetylation
    • Intermediate compounds stabilized, fractionated, and inspected for trace solvent residues via GC
    • Blended into bulk synthetic aroma bases or further processed for encapsulation

    Final product types

    • Green note flavor compounds (e.g., cis-3-hexen-1-ol derivatives)
    • Specialty fruity or melon aroma substances
    • Base ingredients for perfumery compounders
    • Encapsulated aroma ingredients for beverages and confectionery

    4. Specialty Polymer and Resin Development

    Polymer manufacturers employ 1-Penten-3-One as a functional monomer or cross-linker precursor, exploiting its unsaturated ketone group to create advanced resins and specialty coatings. Incorporated through controlled radical or ionic polymerization, it delivers polarity and chemical reactivity beneficial for adhesive and surface-active resin formulations. Our integrated QC and backward traceability ensure material suitablility for high-reliability applications.

    Industry compliance standards

    • ISO 9001:2015 process documentation and batch traceability
    • RoHS 2011/65/EU in electrical and electronics polymer uses
    • REACH Annex IX registration for polymer intermediates in the EU
    • ASTM D256 for resin impact strength and mechanical property testing

    Typical usage ratio

    • 3–12% by molarity within monomer mixtures, with adjustments for glass transition temperature and cross-link density targets

    Downstream process integration

    • Introduced into bulk or emulsion polymerization reactors with acrylates or vinyl monomers
    • The ketone group participates in subsequent curing or UV-crosslinking reactions
    • Integrated into formulation just before initiator addition to control reactivity
    • Residual monitoring after polymerization for compliance with end-use regulations

    Final product types

    • Specialty adhesives for automotive and electronics
    • UV-curable coatings for optical films
    • Reactive modifiers for high-impact engineering plastics
    • Cross-linking agents in composite and laminating resin systems
    Free Quote

    Competitive 1-Penten-3-One prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

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    Certification & Compliance
    More Introduction

    1-Penten-3-One: Precision-Crafted for Chemical Synthesis

    Bringing Experience to Every Batch

    Working day in and out with industrial organics shows you what consistency and precision really mean. 1-Penten-3-one stands out as a specialty building block, and putting it into the hands of researchers, flavor formulators, and process engineers always highlights what separates carefully manufactured chemicals from generic stock. What you get in every kilogram from our reactors starts with control at every stage—the choice of feedstocks, meticulous distillation, keen attention to impurity profiles, and an unwavering commitment to reproducibility. This is not just a byproduct off a bulk plant; every gram is measured and monitored, batch after batch.

    Model and Purity: Every Molecule Accounted For

    Our standard production of 1-Penten-3-one delivers a material with a minimum assay of 98%. The scene at the refinery never cuts corners; we analyze for secondary carbonyls, trace aldehydes, and residual solvents before labeling a drum suitable for shipment. GC-MS and NMR fingerprints are not just documentation—they serve as our final signature on each lot, ensuring the profile matches what the synthesis team demands. Customers who moved from off-spec sources to our high-tolerance batches consistently report sharper yields in downstream condensation and reduction reactions, fewer color bodies in flavor intermediates, and much lower byproduct waste at the reactor outlet.

    Application Advantages: Real Work in Your Plant or Lab

    Turning to 1-Penten-3-one for acylation or carbon chain extension offers a unique balance: high reactivity from the enone functional group, but with a carbon backbone that resists easy polymerization. That makes it valuable for flavors where character impact relies on minimal background noise from side reactions. The C5 skeleton offers a touch of volatility and solubility absent in heavier ketones, and a punch in reaction speed where acetone would slow down too much. In our early years, customers pointed out headaches with off-market 1-Penten-3-one—contamination with di-ketone impurities, poor chromatographic separation, and inconsistent odors that ruined sensitive flavor runs. Our facility recalibrated column specifications and flow rates based on that direct feedback, cutting out the most persistent contaminant classes. Now, blending houses and specialty syntheses experience cleaner separations and better product stability.

    Technical Specifics: Transparent and Consistent

    Keeping to technical facts matters. 1-Penten-3-one arrives as a colorless to slightly yellow liquid, clear under natural or fluorescent light if stored correctly. Boiling point ranges upward from about 106°C, so it manages distillation and solvent stripping in medium-vacuum setups without excessive losses—critical for flavor production and for researchers fine-tuning reaction temperatures. Our teams check for water solubility and partition coefficients as part of every product review, because even a subtle shift in polarity can alter performance in pharmaceutical syntheses.

    In practice, the specification-driven approach ensures you won't confront variability in purity, which plagues less controlled sources. Our on-line spectrometers flag anomalies in UV absorbance or RI drift, letting us react before a batch goes off within the plant. Holding the system to these tolerances gives our customers confidence with each new order—whether they're running a quarter-ton batch or filling microreactors for agrochemical leads. Orders from previous years show that customers rarely request further purification after trying our product at scale.

    Use Cases Backed by Results

    Our long-established partners return to 1-Penten-3-one for one simple reason—they see project deadlines consistently met once trace contaminants stop showing up in GC traces. Flavor companies rely on the material to introduce that signature green, slightly spicy top note in artificial fruit blends, where alternatives like 1-penten-3-ol create sweeter but less vibrant profiles. As a foundational intermediate, it streamlines aldol reactions, bringing both selectivity and cleaner workup steps compared to more conventional ketones. In sequence, customers switching from mixed-source material to our 1-Penten-3-one cite two recurring benefits: reduced purification steps post-reaction, and less product loss in downstream chromatographic recovery. Aromatic compound synthesis especially reaps the gain from absence of hydroxyketone and diketone impurities, which can complicate isolation.

    The Difference: Not All Enones Are Equal

    Many chemists ask what makes 1-Penten-3-one a more attractive option compared to familiar alternatives like 2-pentanone or methyl vinyl ketone. The answer lies in both the reactivity and behavior in complex systems. 2-pentanone, lacking the α,β-unsaturation, cannot introduce double bond conjugation, and methyl vinyl ketone, though exceptionally reactive, often brings with it excessive hazard, rapid polymerization, and greater toxicity risks. From experience, wins in the pilot plant often come down to how smoothly a particular enone reacts, and how manageable the purification becomes.

    With 1-Penten-3-one, the right balance emerges—enough conjugation to drive successful Michael additions or cyclizations, but without the runaway hazard profile of lighter, more volatile enones. Purification, even on kilogram scales, works with less wasted solvent and fewer bottleneck steps. Our own process development teams validate these claims every quarter, running comparative pilot syntheses to benchmark efficiency and recovery rates. Over time, this sharpens process safety and achieves reproducibility, saving both material and time for customers.

    From Process to Product: Challenges and Adaptation

    Few topics stir up debate like handling of active ketones under plant conditions. One challenge with 1-Penten-3-one involves sensitivity to atmospheric moisture and light, which can gradually introduce off-odors or induce isomerization if left unchecked. We adapted our packaging line to work under nitrogen atmospheres, filling containers sealed against both water and oxygen. While costlier, this approach holds the odor profile and reduces trace acid generation—key to extending shelf life and ensuring every drum poured out resembles the day it left the tank.

    Years back, we fielded customer complaints about unexplained yellowing in their stock after shipment. A deep dive through storage logs, tank analysis, and shipping history showed a weak link in drum gamma-resistance and UV exposure at distribution centers. Since fixing the packaging standard and adding a thermal wrap to containers shipped in summer, incident rates dropped almost entirely. Taking the details seriously—from process reflux rates to lighting in the filling dock—avoided costly rework for both sides.

    Supply Reliability and Traceability

    As manufacturing controls in our region grew stricter, traceability became non-negotiable. Each batch runs with full lot tracking, archiving blend data, source raw materials, and all in-process parameters. At every point in scaling production, detailed logs support recalls and complaints, turning traceability from a burden to an advantage. When supply chain shocks hit—say an unexpected shutdown at an upstream C5 refinery—the plant shifts smoothly onto backup lots, always verifying with a fresh round of QC, so the customer receives no surprise deviations.

    Recently, with global logistics under pressure and container shortages disrupting many chemical flows, our team made a point to run larger batch drives in-house rather than risking out-of-house tolling that might introduce unknown contaminants. During the worst shipping bottlenecks, we arranged for on-site customs inspection and direct customer pickup at the factory. Those nimble changes came from years spent listening to plant operators, logistic coordinators, and chemists working at scale.

    Meeting Evolving Customer Demands

    Chemistry does not stand still, and specifications change. Over the years, customers from fine fragrance houses and pharma R&D labs requested tighter aldehyde limits or requested enantiomeric profiling on certain critical runs. Our lab invested early in high-precision chiral chromatography and invested time in authenticating every new result against international standards. Feedback went straight onto the production floor. As new applications cropped up—especially in boutique agrochemical leads and specialized olfactory research—our plant adapted, adding two extra online purity checks before drum release.

    The team also increased investment in technical support, so if a customer faced a strange byproduct or unexplained lag in a Friedel-Crafts alkylation, our chemists could review run data and spot contaminant origins, or confirm the impact of minor byproducts. This approach has shrunk troubleshooting time and deepened partnerships, particularly with customers managing high-value downstream syntheses where every impurity matters.

    Process Safety and Environmental Oversight

    Producing 1-Penten-3-one involves handling volatile feedstocks, strong acids, and precise heating profiles. Our plant’s strict process safety culture means regular HAZOP reviews, continuous monitoring for fugitive emissions, and active staff training. Waste management never follows a one-size-fits-all playbook—instead, spent process streams undergo staged neutralization and post-treatment designed for the unique chemical load of each lot. Recovered byproduct streams often find themselves recycled within our site or forwarded to third-party processors able to recover useful carbon units.

    We faced significant investment decisions during rising scrutiny of VOC emissions and workplace exposure. Instead of reacting to regulatory deadlines, the site team took preemptive action, retrofitting stack monitoring and reviewing the lowest-exposure transfer and storage solutions. Besides reducing the real risk on site, these changes reassure customers that their purchasing practice lines up with new compliance standards.

    Direct Dialogue Leads to Better Chemistry

    Mass production never removes the need for human detail. Many of our long-standing customers came from direct production visits, technical workshops, or troubleshooting sessions over the phone. By seeing the reactor setup, talking through analytical challenges, or even tasting a raw material’s impact at the lab bench, each partner helped us refine our manufacturing and specification system. As a result, requests for unconventional container sizes, special headspace treatments, or certified impurity reports become not a headache, but a chance to raise the standard and improve our offering to the next customer.

    No Shortcuts: Genuine Value in Each Drum

    To those sourcing 1-Penten-3-one looking for just another commodity, we encourage a closer look at the details that set each supplier apart. Generic product may suffice in low-end, high-throughput processes, but sectors building complex molecules or sensitive final forms can trace every failed batch or odd aroma back to uncontrolled impurities left over. Engineering a high-purity 1-Penten-3-one means not just running a recipe, but using the combined experience of hundreds of runs, troubleshooting mishaps, tracking minor impurities, and learning from field returns. This goes into every container shipped out.

    Continuous Improvement: Tomorrow's Product Today

    The field never stays still. Raw material streams shift, new regulatory frameworks appear, and education on value over volume deepens. Every improvement we record in production—each new distillation trick, faster analysis run, or cleaner split of enone from impurities—feeds back into the next batch. The gap between the best product and an “acceptable” product grows wider each year. Staying ahead means treating every breakdown report, successful recovery, delivery challenge, or passing comment from a process chemist as a chance to improve. This culture of continuous feedback closes the loop that started on day one of our production line.

    Informed customers bring new challenges every quarter, sometimes with a demand for even tighter residue limits or materials that can be traced back through every precursor. These conversations force a manufacturer to rethink what is possible, pushing for innovation in both technical and logistical offerings. The final result: a better, more reliable, and increasingly respected product that meets real-world application needs—not just on paper, but in the final result at the bench, in the plant, and on the shelf.

    The Future: Reliability Rooted in Experience

    Manufacturing 1-Penten-3-one represents more than running a sequence of chemical steps. Each order carries the expectation of stability, purity, and workability, packaged in the trust that only hard-earned experience can offer. Every customer who brings a question, a specification change, or a complaint builds this story with us. As the market asks for more refined, accountable, and flexible chemical intermediates, only experience-driven, hands-on manufacturing facilities can provide more than a commodity—they deliver the unseen details that make or break challenging chemistry. That is the value infused into every unit of our 1-Penten-3-one—and it stands as a testament to careful, responsible chemical manufacturing.