Methyl acetoacetaten

    • Product Name: Methyl acetoacetaten
    • Chemical Name (IUPAC): Methyl 3-oxobutanoate
    • CAS No.: 105-45-3
    • Chemical Formula: C5H8O3
    • Form/Physical State: Liquid
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@boxa-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
    • CONTACT NOW
    Specifications

    HS Code

    497569

    Chemical Name Methyl acetoacetate
    Molecular Formula C5H8O3
    Molar Mass 116.12 g/mol
    Cas Number 105-45-3
    Appearance Colorless liquid
    Density 1.10 g/cm³
    Boiling Point 169 °C
    Melting Point -45 °C
    Flash Point 63 °C
    Refractive Index 1.419
    Solubility In Water 34 g/L (20 °C)
    Odor Fruity
    Vapor Pressure 0.4 mmHg (20 °C)
    Autoignition Temperature 460 °C
    Synonyms Acetoacetic acid methyl ester

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

    Packing & Storage
    Packing Methyl acetoacetate is packaged in a 500 mL amber glass bottle with a secure screw cap and hazard labeling for safe handling.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Methyl Acetoacetate: Loaded in 200L drums, approximately 80 drums per 20′ container, total 16 metric tons.
    Shipping Methyl acetoacetate should be shipped in tightly sealed, properly labeled containers, protected from moisture and direct sunlight. It should be transported at ambient temperature and kept away from strong oxidizers, acids, and bases. Comply with relevant hazardous material transport regulations (UN 2653), ensuring all documentation and safety measures are in place.
    Storage Methyl acetoacetate should be stored in a cool, dry, well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers and bases. Keep the container tightly closed and protected from direct sunlight. Store at ambient temperature, avoiding excessive heat or freezing. Properly label storage containers and ensure access to spill containment and proper fire safety equipment.
    Shelf Life Methyl acetoacetate typically has a shelf life of 12–24 months when stored tightly sealed, cool, dry, and protected from light.
    Free Quote

    Competitive Methyl acetoacetaten prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: sales7@boxa-chem.com

    Get Free Quote of Nantong Acetic Acid Chemical Co., Ltd.

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    Methyl Acetoacetate: Trusted Quality from the Manufacturer’s Perspective

    The Story of Our Methyl Acetoacetate

    Making methyl acetoacetate is about more than just chemistry to us. Every batch reflects years of experience and learning. Many of the world’s coatings, pharmaceuticals, and flavors rely on materials that demand tight control and deep understanding. We produce methyl acetoacetate that meets real-world production challenges, and the clarity we see in the field comes from years spent refining the process and talking with customers who actually use our product.

    Experience in the Plant and the Lab

    Producing methyl acetoacetate isn’t just about mixing chemicals and hoping for the best. Our operations use technical-grade and high-purity grades. Industrial users count on both our standard and tailored specifications, especially for downstream processes needing reliable assay ranges or water content control. Everything revolves around certainty—dropping an unknown into a large-scale run introduces unacceptable risk.

    Over years of work, we’ve faced surprises: residual solvent levels that round up in an assay, or a faint impurity that’s easy to miss during bench-scale QC but creates foam or color bodies on the plant floor. In 1999, a customer flagged an odd polymerization issue in a coating line traced back to a subtle side-reaction byproduct. Digging in, we adjusted rectification steps on our columns and reworked our cleaning cycles for the knockout drum—production problems like these change how we treat every stage. Little mistakes in this field mean ruined batches and expensive downtime, so we maintain a steady, practical focus.

    Specifications That Make a Difference

    Chemists sometimes see methyl acetoacetate as an ordinary building block. In reality, small differences matter when scaling up. We make several specifications. Solvent and pharmaceutical buyers often want assays above 99.5% with water content kept under 0.1%. Paint and textile customers don’t always need this premium grade, and opt for slightly lower purity, trading off on cost.

    Sometimes, an extra percent of purity might not sound important on paper, but repeated handling can make impurities build up in end products. That shows up as haze in a clear resin, lower pigment brightness, or unpredicted reactivity. Over 25 years producing this molecule, our team has found that tight purity control saves headaches for formulators with sensitive downstream requirements.

    Physical parameters follow global standards. We supply material with a boiling point near 169°C, color values below 10 on the APHA scale for high-purity grades, and density checks for every lot. Moisture—always an enemy in acetoacetate chemistry—draws special attention. Online Karl Fischer checks and closed system storage have become second nature for us. We’ve seen too many batches troubled by unexpected hydrolysis to overlook this detail.

    Diverse Applications Rely on Clean Manufacturing

    People often ask exactly how methyl acetoacetate gets used. Years working with buyers have shown that even within a single industry, applications surprise you. In the pharmaceutical world, it’s a proven intermediate for barbiturates, anti-inflammatory agents, and diverse heterocyclic drugs. Reliability means more than purity—the whole impurity profile can change a synthesis pathway. We often work hand-in-hand with project chemists to interpret GC traces and chase off-flavors from volatile residues.

    Outside pharma, the resin industry depends on methyl acetoacetate as a starting block for producing specialty polymers, especially where ketonic esters create distinctive surface properties or enhance UV stability. In flavors and fragrances, this compound builds subtle, fruity notes. Cosmetic makers want food-grade compatible purity but also expect it ship free of detectable aromatic contaminants. During development of a fruit-based flavor additive in 2011, one client struggled with a lingering chemical note until we traced it back to a minor esterified byproduct, and adjusted process timing to eliminate the issue. This sort of field-driven tuning makes quality molecular manufacturing meaningful.

    Methyl Acetoacetate in Real-World Operations

    Working with this material, we see that small impurities can create real headaches. In certain agrochemical syntheses, a half-percent more water means failed reactions or spontaneous polymerization. Bulk buyers want every drum filled with the same, predictable profile—no surprises, no residue in their mixing tanks, and universal compatibility with the next additive in line.

    On the floor, every fill, every seal, and every nitrogen blanket means something beyond numbers on an assay. Over the years, we have adjusted handling—using glass-lined steel storage, double filtration out of the last condenser, and on-spot testing for trace metals—to prevent recurring complaints about product darkening or unwanted reactivity. Minor details matter here. If there’s ever a challenge, we address it directly, talk through the troubleshooting steps, and share improvements across our customer base.

    Comparisons with Other Acetoacetates and Esters

    Methyl acetoacetate regularly gets compared against ethyl and tert-butyl acetoacetate. Experience shows big differences in both cost and function. Ethyl acetoacetate is popular where higher boiling points or slower evaporation rates help the formulation, but methyl acetoacetate stands out for fast reactivity in Knoevenagel condensations and other C–C bond-forming reactions common in active pharmaceutical ingredient synthesis. It introduces less steric hindrance, proving useful for building more complex output toward large molecules.

    Tert-butyl acetoacetate, by contrast, offers higher thermal stability and helps in circumstances where reaction conditions trend hotter. But instability at room temperature tends to be a bigger issue for field users, and off-gassing or residue can complicate equipment cleaning. By making methyl acetoacetate with as little free acid and color as possible, we address the needs of customers wanting tight control over these differences, often switching from one ester to another during development work.

    We spend time with formulation teams comparing trial batches. Our methyl acetoacetate’s lighter odor, finer GC profile, and higher shelf life—at least twelve months under stable conditions—means clients see it as a lower-risk, more versatile tool. Customers who switch to our batches from low-grade imports often report fewer fouling issues, less filter clogging, and sharper, more consistent final products in specialty chemical manufacturing pipelines.

    Building Product Trust Through Manufacturing Consistency

    Across every run, we sample and test at multiple stages, simulating the workflows our downstream users follow. If the product doesn’t clear in our testing, it doesn’t go into drums or tankers. Many customers have walked through our facility, following their molecules from the charging tanks to the final valve. That transparency isn’t just for show—it builds confidence. Whether a drum goes to a research startup or a multinational coatings manufacturer makes no difference; the detail invested in small and bulk batches stays steady.

    From raw material procurement to the last inspection before shipping, each step comes from a framework based on historic process data. Over time, we’ve built a database of minor impurity signatures, flagged patterns in off-standard runs, and cross-checked client feedback on applications—from coatings with strict haze limits to API production where controlling for critical process impurities is key. That knowledge transforms our process. We don’t just stick to theoretical best practices. We adapt.

    Handling, Storage, and Beyond

    We know shelf life, storage, and shipment really matter to customers who receive our methyl acetoacetate. Direct experience with cross-contamination accidents in third-party warehousing has pushed us to use only lined, sealed containers for any export consignment. Years ago, we noticed an uptick in off-flavor complaints following summer shipments, which led to a switch in packaging from steel drums to HDPE for certain grades—improving stability when in transit during hot weather.

    Staff receive hands-on training about handling practices, from keeping transfer lines dry to eliminating atmospheric exposure during bottling. Downtime from drum swelling—caused by minor off-gassing or vapor-phase reactions—gets attention with regular checks, and, when necessary, lot pulls, though improvements in purification have minimized this issue for the last seven production cycles.

    Customers who visit our plant see these routines in action. Each feedback loop feeds right back into our documentation and batch record-keeping. If anyone ever requests historical data about their run, we’re ready with archive samples and logs dating a full two years back—a promise many competitors cut corners on. We don’t take shortcuts; field failures cost more than any up-front investment.

    Meeting Regulatory and Sustainability Demands

    Modern buyers ask about regulatory history, environmental impact, and compliance. We keep documentation clear, track all batch origins, and submit for local and global audits as standards evolve. More clients now demand evidence of low residue-pesticide starting materials, and we supply these certificates with every premium consignment. As for greener chemistry, ongoing work in solvent recovery and closed-loop manufacturing reflects our real commitment, not just a marketing tagline. Since 2021, our waste stream for methyl acetoacetate runs fell by 19% via in-process recycling and energy optimization projects.

    Some clients in pharma require full trace metallic and volatile screens, and we’ve adapted so these are on file for every lot. Every year, regulatory submissions bring new requirements; our own in-house team interfaces with both government offices and customer review boards to preempt issues before they arise. This means no disconnect between lab paperwork and production floor reality—what you see in a document reflects genuine, plant-lot experience.

    Solving Field Problems: Real Stories, Hard-Earned Lessons

    Over decades, customers have shared their problems openly. A paint manufacturer pointed out persistent streaking and hazing only when using overnight open tanks; that prompted us to accelerate our pilot shelf-life simulations and recommend narrow-headspace equipment for sensitive users. In one flavor customer’s distillation application, a minor higher-boiling contaminant reduced yield by 4%. We reversed the issue in less than a month, tracing the impurity back to process temperature variance at a rectification column base.

    Lessons like these guide our process. Our technical team provides more than just a standard data sheet—we contribute practical knowledge built from running thousands of tons through the same types of reactors, pipelines, and tankers that our customers use. Instead of leaving QC to theory, we ask for field samples from new customers and run side-by-side comparisons, helping them spot issues that show up only during scale-up or long-term storage. Our product improvement strategy is simple: partner with the end user and never stop learning.

    Key Advantages Forged Through Practice

    On paper, methyl acetoacetate can look like a commodity. For us, product integrity makes the biggest practical difference. Detailed quality control, traceable sourcing, and tested formulations lead to fewer call-backs, less production downtime, and faster troubleshooting. Formulators working on novel drugs, advanced coatings, and new flavors often need more than high-percentage purity; they call for a supplier who responds in the moment, with field-tested solutions, adjusting small parameters as conditions shift.

    Reliability grew from dozens of hard lessons learned in the manufacturing trenches—not just from literature. We know which impurities will cause an API to fail downstream stability, or give a paint chemist a headache with haze and slow cure. Over the years, we’ve worked out those kinks batch by batch, so every new drum or container reflects not just today’s specifications, but every step our team has taken to get methyl acetoacetate production this far.

    Making the Right Choice in Methyl Acetoacetate

    Reliability and technical strength matter to those who trust their process to us. Our in-house engineering and long-view attitude shape every decision, from raw material logistics to the moment drums leave our gates. Every customer, old or new, brings fresh insight that raises our bar higher. We treat every specification as a living document—constantly tested, never just filed away.

    Those who succeed in downstream applications—making breakthroughs in pharmaceuticals, advancing polymer chemistry, or crafting next-generation flavors—depend on partners with proven commitment. This molecule forms just one small bridge in their innovation. Real-world trust depends on people who do the work, batch after batch, year after year. Our team stands behind every lot.