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Methyl 3-Cyclopropyl-3-Oxopropionate

    • Product Name Methyl 3-Cyclopropyl-3-Oxopropionate
    • Alias Methyl 3-cyclopropyl-3-oxopropanoate
    • Einecs EINECS 609-384-7
    • 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

    709357

    Productname Methyl 3-Cyclopropyl-3-Oxopropionate
    Molecularformula C7H10O3
    Molecularweight 142.15 g/mol
    Casnumber 1187165-76-5
    Appearance Colorless to light yellow liquid
    Boilingpoint No data available
    Meltingpoint No data available
    Density 1.14 g/cm3 (approximate)
    Purity Typically >98%
    Solubility Soluble in most organic solvents
    Refractiveindex 1.438 (approximate)
    Flashpoint No data available
    Smiles COC(=O)CC(=O)C1CC1
    Inchi InChI=1S/C7H10O3/c1-10-7(9)4-6(8)5-2-3-5/h5H,2-4H2,1H3

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

    Packing & Storage
    Packing 50g of Methyl 3-Cyclopropyl-3-Oxopropionate is sealed in a clear, labeled glass bottle with a secure screw cap.
    Shipping Methyl 3-Cyclopropyl-3-Oxopropionate should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Use suitable, compatible packaging materials. Ship according to regulations for organic chemicals. Ensure proper labeling with hazard information. Transport at ambient temperature, unless otherwise specified by the manufacturer’s safety and stability data.
    Storage Methyl 3-Cyclopropyl-3-oxopropionate should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizing agents. Keep it at room temperature and avoid exposure to moisture. Store in accordance with standard laboratory safety protocols, clearly labeled, and out of reach of unauthorized personnel.
    Application of Methyl 3-Cyclopropyl-3-Oxopropionate

    Applications of Methyl 3-Cyclopropyl-3-Oxopropionate in Industrial Manufacturing

    Methyl 3-Cyclopropyl-3-Oxopropionate displays key reactivity and selectivity in pharmaceutical synthesis, advanced agrochemical intermediates, flavors and fragrances, and specialty polymer building blocks. As a manufacturer, we support tailored process integration and compliance documentation for each sector outlined below.

    1. Pharmaceutical Intermediates for Antiviral and Antihypertensive APIs

    Methyl 3-Cyclopropyl-3-Oxopropionate functions as a critical synthon in the manufacture of antiviral and cardiovascular active pharmaceutical ingredients, particularly those utilizing cyclopropyl rings to confer metabolic stability. In process-scale applications, it gets incorporated into heterocycle cores via regioselective condensation and subsequent transformations such as alkylation or reduction. The choice of solvent (acetonitrile, DMF, or toluene) and the stoichiometry depend on downstream API needs, and our technical team tailors the grade and impurity profile accordingly. Downstream QC typically demands trace-level residual solvents and specified enantiomeric purity. Final intermediates progress to GMP production under validated cleaning and cross-contamination controls.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US FDA 21 CFR 210/211
    • Ph. Eur. and USP pharmacopoeial requirements for intermediate purity and solvents
    • Certificate of Suitability (CEP) for certain final APIs

    Typical usage ratio

    • 0.8–1.2 molar equivalents per synthetic step, adjusted for target yield and downstream conversion rates
    • Batch process optimization determines excess for limiting impurity formation

    Downstream process integration

    • Intermediate is introduced post-activation during C–C coupling to modified piperazines or pyrimidines
    • Common as an early-stage “building block” pre-chiral pool configuration

    Final product types

    • API intermediates for drugs such as cilnidipine, certain anti-influenza compounds, and experimental NCEs
    • Registered synthetic steps monitored by multinational licensors

    2. Agrochemical Synthesis – Precursor for Cyclopropyl Herbicides and Fungicides

    Chemistry teams use Methyl 3-Cyclopropyl-3-Oxopropionate in multi-step syntheses for selective herbicides, seed treatment fungicides, and crop protection chemicals. It provides a cyclopropyl functional group required for field-stable molecules active against resistant weed or pest phenotypes. Analytical control at this stage emphasizes strict residual solvent limits, and careful process control mitigates byproduct formation. The raw material integrates into esterification or condensation sequences, forming acylated compounds later ring-closed or functionalized prior to formulation and scaling-up under ISO-accredited quality checks.

    Industry compliance standards

    • EU Regulation (EC) No 1107/2009 for Plant Protection Products
    • OECD GLP (Good Laboratory Practice) for process development batches
    • ISO 9001:2015 for traceable manufacturing and release audits
    • National regulations for Maximum Residue Levels (MRLs) in food crops (e.g. US EPA, China GB2763)

    Typical usage ratio

    • 1:1.1 molar ratio relative to core amines or alcohols, adapted based on yield and regulatory impurity thresholds
    • Scale-up trials adjust addition rate to minimize hydrolysis

    Downstream process integration

    • Material introduced in the key condensation or ring-closing step for active compound core
    • Feeds directly to formulation lines once subjected to analytical release assays

    Final product types

    • Cyclopropyl-substituted herbicide esters (e.g. for selective grass weed control)
    • Fungicide pre-mixes targeting soil fungi and leaf spots
    • Pro-herbicide safener intermediates

    3. Flavor and Fragrance Aldehyde Synthesis

    Fine chemicals producers use Methyl 3-Cyclopropyl-3-Oxopropionate as a precursor to flavor and fragrance aldehydes through controlled hydrolysis and subsequent oxidation. The cyclopropyl motif imparts unique olfactory properties, contributing to advanced notes for high-end perfumery and food essence markets. We support batch-specific documentation for compliance, and recommend highly purified grades for this sector. Usage ratios and conversion are optimized to limit side-products that can alter fragrance profiles. Downstream processing often requires integration with continuous distillation and fractionation for precise profile targeting.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards
    • US FDA 21 CFR PART 172 — Food additives permitted for direct addition to food for human consumption
    • REACH registration for import and use in the EU
    • ISO 9235:2013 – Aromatic Natural Raw Materials

    Typical usage ratio

    • 1:0.95–1.05 molar equivalents depending on aldehyde chain extension reaction
    • Final bottling specification tightens limits for aldehyde precursors below 0.01%

    Downstream process integration

    • Hydrolyzed to cyclopropyl propionic acid and then oxidized in batch or flow reactors
    • Fractional distillation step follows to isolate the target aldehyde profile

    Final product types

    • Cyclopropyl-derived aldehyde notes for perfumery
    • Food flavoring agents for fruit and nut profiles
    • Natural-compliant aroma intermediates for further esterification

    4. Building Block for Specialty Polyesters and Copolymers

    Methyl 3-Cyclopropyl-3-Oxopropionate contributes to the manufacture of advanced polyesters and polyester-based copolymers with rigid, cyclopropyl-influenced segments that enhance barrier properties and mechanical strength. Materials science teams incorporate the monomer by transesterification or co-polymerization with common dicarboxylates or lactones under high-purity, controlled atmospheric conditions. Process development must maintain strict input-output batch recording for QMS traceability. The unique ring structure imparts resistance to UV degradation and improves shelf stability in specialty packaging films or coatings.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Standard
    • RoHS Directive (2015/863/EU) for electronics-use polymers
    • FDA 21 CFR 177.1630 — Polyethylene phthalate polymers for food contact
    • EU No 10/2011 on plastic materials and articles intended to come into contact with food

    Typical usage ratio

    • 5–20% (w/w) in combination with PET or PLA precursors, depending on target physical parameters
    • Formulation anchor point determined by required copolymer molecular weight and performance criteria

    Downstream process integration

    • Direct feed into bulk transesterification tanks or twin-screw extruders during late-stage polymerization
    • Online QC and melt flow monitoring during processing

    Final product types

    • High-barrier packaging films for pharmaceuticals or specialty foods
    • Multi-layer flexible laminate substrates
    • UV-resistant coatings for industrial applications
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    Certification & Compliance
    More Introduction

    Methyl 3-Cyclopropyl-3-Oxopropionate: A Closer Look from the Manufacturer's Floor

    Why We Chose to Develop Methyl 3-Cyclopropyl-3-Oxopropionate

    Walking through our production halls, people sometimes ask what drives us to invest in a specialty ester like Methyl 3-Cyclopropyl-3-Oxopropionate. As a manufacturer, every product reflects both a response to market demand and a commitment to precision chemistry. Sourcing reliable, highly pure intermediates often determines the quality outcomes for advanced pharmaceutical, agrochemical, and specialty material projects. Methyl 3-Cyclopropyl-3-Oxopropionate stands out because it meets industry needs for a cyclopropyl-containing keto ester with direct synthetic utility, carving a place where generic esters or unmodified propionates fall short.

    Structure and Key Features

    This compound brings together a methyl ester group with a cyclopropyl and a keto function, offering a rare combination of strain-driven reactivity and stable handling properties. Chemical formula and specifications anchor our batch processes: C7H10O3, precise molar mass, clear, colorless liquid appearance, and batch-to-batch purity exceeding 98% by gas chromatography, which we've repeatedly demonstrated in every quality report. Controlled cyclopropanation yields a material free of ring-opened or rearranged byproducts—a point that distinguishes our batches from less carefully made alternatives.

    Our Experience Shaping Production Quality

    Years of direct hands-on synthesis taught us where corners get cut: cyclopropyl groups sometimes bring higher reactivity, and sloppy temperature control easily leads to polymer formation or hydrolysis. Continuous distillation and low-moisture storage shape our protocols. Each container tells a story of drying, vacuum transfer, and even glassware cleaning. We stay clear of cross-contamination, working with lines and vessels dedicated solely for this compound during crucial process steps.

    What Sets Our Process Apart

    Over time, our team moved from small flasks to mid-scale continuous reactors, always keeping reactivity profile and heat management at the center of scale-up. Unlike bulk commodity esters, this material needs tighter hold on residence time and solvent purity. Lower grades crop up when suppliers shortcut their workup: traces of unreacted acid, over-alkylated byproducts, and color bodies point to incomplete purification. Our approach never involved bland blending or simple filtration; every lot passes chromatographic analysis, water content by Karl Fischer, and focused odor checks, because even slight residue flavors show up in the final applications.

    Comparison to Familiar Alternatives

    Chemists sometimes reach for more common beta-keto esters or straight-chain analogs, assuming easy substitution. Experience shows that Methyl 3-Cyclopropyl-3-Oxopropionate cannot be simply swapped out with methyl 3-oxopropionate, ethyl acetoacetate, or methyl cyclopropanecarboxylate. The cyclopropyl ring imparts a combination of ring strain and hydrophobicity that changes both nucleophilic attack rates and selectivity in further transformations. We have seen customers frustrated by sluggish ring-forming reactions or decreased yields when downgrading to less tailored intermediates.

    Handling and Practical Tips from The Shop Floor

    Real production means confronting everyday realities: condensation on cold drums, the faint whiff of a high-energy intermediate escaping faulty seals, and learning from each transfer. This compound stays stable under dry, inert gas in stainless steel or glass. Splashes quickly wipe down with common solvents. Glass vials labeled with batch numbers line our test benches; QA samples undergo monthly retesting. Operators direct-fill into nitrogen-purged barrels, limiting any exposure that could sap the purity or start unwanted reactions.

    Uniform bottle weights confirm no evaporation loss. Every batch stays within tight GC limits for homogeneity and residual solvent. Our experience with earlier mistakes—like shipping on humid days or using recycled drums—drove home the value of rigid storage discipline. The sharp, signature aroma of pure cyclopropyl esters lingers faintly only in well-sealed, properly stored containers; anything less signals an impure lot needing investigation.

    Key Uses Backed by Practice

    The starting point for many complex molecules sits in practical intermediates. Methyl 3-Cyclopropyl-3-Oxopropionate enters real-world synthesis as a versatile building block. Our pharmaceutical clients turn to it for its unique carbon skeleton, which enables construction of chiral centers and hard-to-access fragments. Enzyme and organometallic chemistries benefit from its condensed geometry, opening routes that blockier esters cannot match.

    Agrochemical innovators explore cyclopropyl motifs for altering metabolic profiles in target pests or enhancing environmental stability. In research labs, this compound enables selective enolate alkylation, cyclization, and even late-stage functionalization without risking overreaction. Material scientists—though a smaller segment—have harnessed its backbone to modify polymer crosslinking and tune degradation rates, something straight-chain analogs rarely accomplish.

    Overcoming Production Challenges, Day by Day

    We did not reach this point by outsourcing responsibilities or skipping process development. Early runs caused headaches: glassware stressed by pressure swings, haze from minor hydrolysis, or odd spots on TLC plates pointing to trace side products. Our approach remains to adjust, refine, and standardize—never to accept "good enough." Colleagues take pride in catching a drift in refractive index early, pinpointing pump seal leaks before water sneaks in, and pushing analytical checks to spot anything less than what our customers expect.

    Production experience taught us to target minimal byproduct formation right from the beginning of synthesis, investing in improved reagents and stepwise workups. Each cycle through the process revealed tweaks to time, temperature, or pH that reduced waste and cut costs. The learning never really stops; feedback from end-users—whether positive or pointing out issues—feeds into our next batch, blending practical chemistry with accountability.

    Market Needs: Listening to Real Chemists and Formulators

    Feedback from pharmaceutical R&D teams guided much of this product’s development. Scientists needed precise intermediates for novel ring structures, and off-the-shelf compounds rarely met those needs. Agrochemical formulators required reliability batch to batch—not just in terms of paperwork, but when a synthesis moved from flask to pilot reactor. We never treat runs as throwaways, knowing that even a high-end chemical can lose ground if inconsistent or simply hard to handle in real plant situations.

    Problems with off-smelling, colored, or sluggishly reacting cyclopropyl esters in the past prompted us to closely monitor every detail: starting material quality, timing of addition, sequence of extractions, even the form and trace elements in catalysts. Customers value not only purity and paperwork, but also knowing a product behaves the same way every order—this only happens when actual producers take the trouble to nail down variables at source.

    Regulatory and Environmental Reality

    As regulatory requirements step up worldwide, supply chain transparency and validated batch histories come to the forefront. From our perspective as actual manufacturers—subject to inspection, track-and-trace, and recall pressures—every drum and flask entering and leaving the facility ties into compliance. Methyl 3-Cyclopropyl-3-Oxopropionate, with its potent functional groups, attracts both safety expectations and environmental scrutiny.

    Optimizing production to limit waste, practicing solvent recovery, and adopting closed-loop systems for most process stages grew out of both cost and responsibility. Not all “suppliers” face the same on-site challenges: staff training on spill response, synthesis hazards, and analytic checks really pay off when a hiccup threatens workflow. Transparent inventory and scrupulous documentation back up every claim we make, separating us from outfits that simply move barrels without knowing their origins.

    Potential Solutions for Ongoing Challenges

    No chemical plant remains free of complications forever. Aging equipment, raw material quality fluctuations, and even supply chain hiccups all threaten the reliability expected from manufacturers. We continue to invest in tracking technology, new reactors with better mixing and controlled atmospheres, and closer ties with reliable raw suppliers. In-house analytics—NMR, LC-MS, and high-throughput screening—keep our process honest and every lot sellable direct from the warehouse.

    Staff cross-training limits downtime when people rotate or when new hires step onto the floor. Technology upgrades—like digital monitoring, handheld GC for spot checks, and automated dosing—add robustness, but the eyes and judgment of experienced technicians still matter at every pour, every filter, every drum seal. Problem-solving means adapting, keeping an open channel for customer complaints, and closing the loop with real improvements, not the hollow promise of "investigations underway."

    The Human Element Behind the Molecule

    Behind every certificate of analysis, hundreds of tiny decisions keep a factory humming. Operators trade stories about odd reactions, rare “ghost peaks” in chromatography, or labeling quirks spotted before shipment. Conversations with scaling chemists teach us where minute impurities cause headaches; in turn, we fine-tune our process until those headaches vanish. We refuse the shortcuts that traders lean on; every tweak in stirring, each hour trimmed from a hold stage, strengthens the real value our product brings along the chain.

    Overseeing both large- and small-scale orders, the focus never strays from hands-on responsibility. Our satisfaction comes from knowing that the material we send out supports projects at the edge of R&D as much as established production. Each improvement reflects hours of batch-by-batch review and real collaboration, inside the facility and out.

    Looking Forward: Continuous Improvement, Real Accountability

    Markets change, and specialty esters like this one see shifting demands: more regulated pipelines in pharma, faster development cycles in crop protection, new materials with tricky functional requirements. Every shift challenges us to revisit both synthetic routes and purification steps. We see upcoming green chemistry initiatives shaping how we manage solvents, waste, and even the profile of allowable impurities. Continuous improvement—buzzwords for some, a way of life in a real plant—means reviewing old reports, brainstorming with R&D, and learning from every customer who tries something new with our product.

    Years ago, batch-to-batch consistency relied simply on a careful eye and a trusted glass flask. Now, with digital records, high-performance analytics, and real-time process monitoring, the bar keeps rising. Our job is never just making a number on a certificate; it’s delivering a product ready to perform at each stage of ambitious synthesis, trusted by scientists and proven in process development. We see ourselves not as mere handlers, but as partners to the inventors and builders in modern chemistry.

    Conclusion: Substance, Reliability, Value

    Methyl 3-Cyclopropyl-3-Oxopropionate reflects the exacting standards, lessons, and pride carried by genuine chemical manufacturers. Process insight, application understanding, and real human effort shape every kilogram, not just the documentation. Customers see the difference in reactions that finish cleanly, in colorless intermediates that handle smoothly, and in the steady reliability across shipments. When a product transcends commodity status and supports cutting-edge discoveries, it’s because every detail—raw ingredients, analytics, shipping—has been managed with care and accountability. That’s the level we hold ourselves to every day inside the plant.