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Diethyl Isopropylmalonate

    • Product Name Diethyl Isopropylmalonate
    • Alias DIPE
    • Einecs EINECS 203-740-4
    • 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

    984783

    Product Name Diethyl Isopropylmalonate
    Cas Number 604-69-3
    Molecular Formula C10H18O4
    Molecular Weight 202.25 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 230-232 °C
    Density 1.004 g/cm³ at 20 °C
    Refractive Index 1.424-1.426 at 20 °C
    Flash Point 99 °C
    Solubility Insoluble in water; soluble in organic solvents
    Melting Point -36 °C
    Purity Typically ≥98%

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

    Packing & Storage
    Packing 500 mL amber glass bottle, securely sealed, labeled "Diethyl Isopropylmalonate," with hazard symbols and batch details for laboratory use.
    Shipping Diethyl Isopropylmalonate is typically shipped in tightly sealed, chemical-resistant containers to prevent leaks or contamination. It should be transported as a hazardous chemical, adhering to local, national, and international regulations. Keep away from heat, sparks, and incompatible substances. Ensure clear labeling and include appropriate safety documentation during transit.
    Storage Diethyl Isopropylmalonate should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible materials such as strong oxidizing agents. Keep the container tightly closed and protected from moisture and direct sunlight. Use appropriate labeled containers. Ensure proper handling to prevent spills and contamination, and store at recommended temperature as specified by the manufacturer or supplier.
    Application of Diethyl Isopropylmalonate

    Applications of Diethyl Isopropylmalonate in Industrial Manufacturing

    As a specialized producer of Diethyl Isopropylmalonate, we supply this intermediate to leading manufacturers across core chemical synthesis sectors. Its utility centers on diverse condensation and alkylation reactions, contributing key functionalities to advanced organic compounds. Our technical team ensures product quality and traceability from raw material sourcing through final packaging to support your downstream efficiency and compliance needs.

    1. Pharmaceutical API Intermediate Synthesis

    Our material is widely used by pharmaceutical manufacturers for the tailored construction of complex active pharmaceutical ingredient (API) intermediates, particularly in the synthesis of substituted pyridines, barbiturates, and custom drug candidates requiring malonate-derived scaffolds. The high-purity grade facilitates control over reaction selectivity, minimizing by-product formation during key C–C bond-forming steps of heterocyclic and α-alkylated acid chemistries commonly employed in small-molecule API routes.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practices for Active Pharmaceutical Ingredients
    • Current EU GMP Part II (for API intermediates)
    • 21 CFR Part 211 (pharmaceutical manufacturing, USA FDA)
    • Relevant national pharmacopoeias for intermediate handling (e.g., ChP, JP, USP informational standards)

    Typical usage ratio

    • Used between 0.8–1.3 molar equivalent relative to reactive substrate; exact loading determined by process optimization for each target compound.

    Downstream process integration

    • Dosed directly into batch or continuous reactors during the C-alkylation, condensation, or cyclization step after initial substrate activation or protection reactions.

    Final product types

    • API intermediates for antihypertensives, anticonvulsants, and central nervous system agents
    • Advanced heterocyclic building blocks for contract manufacturing organizations
    • Specialty barbituric acids and custom pyridine derivatives

    2. Agrochemical Active Ingredient Synthesis

    Leading crop protection and agrochemical formulators use our material to construct key intermediates for herbicides, fungicides, and insecticidal agents, especially where malonate coupling introduces β-keto esters or enables ring synthesis in proprietary patent-protected molecules. Batch-to-batch purity supports process QC and downstream crystallization steps, reducing impurity carry-over to active ingredient isolations.

    Industry compliance standards

    • FAO/WHO Pesticide Specifications (for active ingredient synthesis)
    • ISO 9001:2015 quality management system for chemical intermediates
    • REACH Registration, Evaluation, Authorisation and Restriction of Chemicals (EU-specific)
    • China National Standards for Pesticide Production (GB/T)

    Typical usage ratio

    • Application rate ranges from 10–18% by weight of total batch mass, adjusted based on target molecule yield and side-product suppression requirements.

    Downstream process integration

    • Introduced post-activation of aromatic or aliphatic partners during the core carbon backbone assembly or in late-stage condensation to generate targeted β-keto functional groups.

    Final product types

    • S-triazine and related heterocyclic herbicide actives
    • Malonate-derived fungicidal intermediates
    • Proprietary insecticide scaffolds for rotational chemistries

    3. Flavors and Fragrance Ester Manufacturing

    In the specialty flavors and fragrance sector, our material serves as a precursor for creating complex esters and perfumery lactones through controlled malonate-based synthesis. Its use supports manufacturers who need direct chain branching and functional group placement that influence olfactory notes or modify solubility profiles for high-value aroma ingredients.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards and Guidelines
    • FDA 21 CFR 172.515 (flavoring agents, USA)
    • EU Regulation (EC) No 1334/2008 on flavorings
    • ISO 9001:2015 for flavor and fragrance ingredient supply

    Typical usage ratio

    • Added in 5–12% by mass of total reactant mixture, adjustable per esterification or alkylation efficiency, and final sensory performance needs.

    Downstream process integration

    • Charged to reaction vessels during the synthesis stage of lactone and diester compounds, with subsequent neutralization and distillation for aroma isolate recovery.

    Final product types

    • Specialty ester intermediates for fruit and green-note flavorings
    • Lactonic fragrances for fine fragrance and personal care
    • Solubilized aroma building blocks for beverage and confectionery applications

    4. Specialty Polymer and Resin Modifier Synthesis

    Producers of engineered resins and specialty polymers incorporate our product for the tailored synthesis of monomers and plastic additives that require precise alpha-branched malonate structures. This enables the development of resins with modified hardness, flexibility, or weathering properties, improving end-use performance in demanding industrial and consumer applications.

    Industry compliance standards

    • ISO 9001:2015 (quality management in polymer intermediates)
    • EU Regulation (EC) No 1907/2006 (REACH compliance for polymers)
    • EN 71-3 (Toy Safety, for additive use in consumer plastics)
    • ASTM D256 (Standard Test Methods for Impact Resistance, post-resin modification)

    Typical usage ratio

    • Usually incorporated at 3–8% by weight of pre-polymer batch, precisely tailored by target resin chain length and mechanical property requirement.

    Downstream process integration

    • Added during the co-monomer charging or modification stage before final polymerization or cross-linking, followed by extrusion or molding into product forms.

    Final product types

    • Impact-modified acrylic resins
    • Functionalized polyesters for automotive and electronics
    • Plasticizer additives for specialty PVC applications

    5. Fine Chemical Custom Synthesis and Contract Manufacturing

    Custom synthesis providers and contract manufacturing organizations engage our raw material for targeted alkylation and esterification processes enabling rapid prototyping and scale-up of novel molecules in the life sciences, specialty ink, and advanced material segments. Batch consistency and traceability are essential for multilayered reaction schemes, purity assays, and regulatory project audits.

    Industry compliance standards

    • ISO 9001:2015 (applied to custom manufacture and process assurance)
    • IPEC-PQG GMP Guide for Pharmaceutical Excipients (if end-use requires excipient-level compliance)
    • REACH Annexes VII–X depending on production volume and use pattern in Europe
    • CQI-9 (Special Process: Chemical Processing System Assessment, for critical contract synthesis)

    Typical usage ratio

    • Typical input ratio varies from 1.0–1.5 equivalents, determined by stoichiometry of bespoke organic transformations and downstream purification strategy.

    Downstream process integration

    • Supplied neat or in solution, introduced during key C-alkylation, ester interchange, or Michael addition sequences, followed by in-process monitoring and stepwise product work-up.

    Final product types

    • Custom fine chemicals for pharmaceutical screening libraries
    • Functionalized intermediates for specialty coatings and photoinitiators
    • Prototype molecules for contract R&D projects
    Free Quote

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

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    We will respond to you as soon as possible.

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    Certification & Compliance
    More Introduction

    Diethyl Isopropylmalonate: Built Through Experience, Tailored for Reliable Performance

    The Product Behind Years of Manufacturing Know-how

    Manufacturing fine chemicals takes more than mixing and measuring. Real knowledge comes after you’ve run batches in changing conditions, optimized yields, and worked to reduce even minor impurities that complicate downstream chemistry. Our Diethyl Isopropylmalonate has shaped up through all of this. For years, we have invested in the facilities, processes, and people to keep consistency and quality from batch to batch.

    Our product, Diethyl Isopropylmalonate (CAS: 597-35-3), comes as a clear, colorless liquid, and offers a purity that meets the critical standards for pharmaceutical and agrochemical synthesis. Through decades of adjustments and quality audits, we have learned exactly what matters most to chemists: reliability in reactivity, solvent compatibility, and resistance to side reactions. The specifications we maintain reflect actual industry demand, not just numbers on a paper.

    From Small Molecule Labs to Industrial Synthesis: Built for Chemists’ Needs

    Chemists and process engineers have adapted Diethyl Isopropylmalonate across various applications—one of the most common being in the construction of substituted malonic esters, vital in preparing active pharmaceuticals, vitamin intermediates, and crop-protection compounds. The structure, featuring both ethyl and isopropyl groups bonded to the malonate framework, brings nuanced advantages for these uses.

    Our customers use it to synthesize alpha-alkylated malonates with better selectivity than traditional symmetrical derivatives. The added steric bulk from the isopropyl chain blocks undesired side reactions, allowing more precise control over final products, especially in stepwise alkylation and acylation. We understand this need for selectivity—from our experience scaling this product for both pilot and full production, we know that process chemists cannot afford unnecessary byproducts or incomplete conversions.

    No Two Malonate Esters Are Alike—This Isopropyl Difference Matters

    For those new to mixed malonates, Diethyl Isopropylmalonate stands apart from dialkyl malonates in practical ways. Dialkyl variants such as diethyl malonate or dimethyl malonate yield fast, easily accessible alkylations, but can fall short where differentiation is necessary. The asymmetric structure of our Diethyl Isopropylmalonate hands a chemist added selectivity. We have seen the benefit through customer feedback: more controllable reactivity, unique product scaffolds, and fewer purification headaches.

    When screening pathways for new pharmaceutical ingredients, researchers often find that dialkyl products introduce unnecessary downstream challenges, including difficult separations and protecting group conflicts. Our Diethyl Isopropylmalonate performs in cases where dialkyl options under-deliver, especially during tandem transformations that demand partial hydrolysis or selective functionalization at one ester group. The differing sizes and reactivity of the ethyl and isopropyl components let lab teams design routes that would otherwise require extra steps or protection strategies. Whenever we receive questions about choosing between dialkyl and mixed malonates, our answer builds on this real working experience.

    Purity Backed By In-House Analytics—No Guesswork

    Chemical synthesis asks a lot from every input. Our quality analysts develop and run each batch through GC and NMR checks, verifying that every bottle leaves our plant meeting published specifications—typically >98% purity by GC. Low water and low acidic/neutral impurities lead to reproducible performance in condensation, alkylation, and cyclization steps. Experience has shown us that even a minor contaminant can sideline a synthesis. Many customers initially tried market-grade material and soon returned for ours—consistency matters most where yield and reproducibility drive costs and schedules.

    We update and refine testing protocols to keep up with the changing requirements that pharmaceutical and agrochemical end-users prioritize. Our labs maintain traceability for each lot produced, and feedback from downstream process teams helps us quickly adjust our production parameters to proactively avoid any issues that could inhibit critical applications. The integrity of our Diethyl Isopropylmalonate reliably translates to fewer surprises in scale-up, which can mean days saved in project timelines.

    What’s Behind Our Model and Specifications?

    Manufacturing specialty esters is seldom a plug-and-play task. Over time, we have optimized several parameters: solvent phase, reaction temperature, purification methods, and final QC measures. Our standard Diethyl Isopropylmalonate model targets a purity upwards of 98%. Typical physical properties: clear, odorless liquid, boiling point in the 135-141°C range, specific gravity between 0.97-1.00 g/cm³, acid value below 0.1, and water content below 0.1%. These values haven’t sprung from a standard file; we developed them through actual customer requirements and iterative improvements.

    Some clients require further customized specifications, for example, improved GC purity for discovery projects or different packaging to suit their pilot scale. Our technical team always collaborates directly with process chemists in the field, not just the procurement desk. The success of every step, from bench trials to metric ton scale, hinges on a product that arrives as promised—without shortcuts or hidden pitfalls. We take pride in knowing our reputation came from honest feedback and transparent adjustments.

    Supply Built on Traceability and Transparency

    Traceability is not a trend for us; it’s a necessity. Our batch logs run deep, from raw material source to packaging. This transparency gives our clients confidence in securing regulatory filings, especially for regulated pharmaceuticals and crop science industries. Process data and quality records stay accessible throughout the product’s lifetime. If a process chemist reports a rare issue downstream, our in-house lab can pull the exact production records for that lot in hours, not days.

    Our customers—ranging from international pharmaceutical developers to industrial fine chemical firms—count on this degree of accountability. We have been through enough joint audits and inspections to know exactly which product attributes must be documented, and we do not compromise on reporting. Whenever engineers or regulatory compliance teams visit our facilities, they review records that are consistently organized and complete.

    Real-World Application Stories

    Many of our long-standing relationships started with projects that seemed routine but revealed the hidden variables in real-world chemical synthesis. For instance, a client in pharmaceutical API research ran several parallel syntheses with both diethyl malonate and our Diethyl Isopropylmalonate. The project aimed to simplify the post-reaction workup and reduce the frequency of side-chain migration products. Over two years, they reported higher product yields and far less need for chromatography when working with our product. They could pursue a thinner process route and cut synthetic steps that previous dialkyl malonates made unavoidable.

    Elsewhere, an agrochemical manufacturer used our product to address selectivity at the mono-hydrolysis stage. Efficiency jumped in their continuous production line after switching to our Diethyl Isopropylmalonate, reducing solvent consumption and batch deviation rates. We spent time on-site with their team to adjust parameters for optimum reactivity and separation, basing recommendations on our hands-on operational experience.

    Why Experience With Production and Downstream Processing Matters

    Years of working alongside chemists and engineers in the field have taught us many lessons that raw specification sheets cannot show. Take the case of hydrolysis: dialkyl esters often demand extra protection strategies or careful temperature control to influence which group reacts first, leading to unpredictable results in complex chemical matrices. Our Diethyl Isopropylmalonate sidesteps much of this confusion—the isopropyl group’s size and shielding effect slows its hydrolysis, handing process engineers better selectivity for the ethyl group. Scenarios where this matters aren’t hypothetical—they’ve unfolded across dozens of scaled projects, each time reinforcing the value of real production experience.

    Product quality isn’t defined only by what leaves our plant—it extends to how the material behaves under stress, storage, or years of distribution. Our in-house logistics and packaging teams have solved cold chain and shelf-life issues that once meant significant losses for clients using market-grade material. This extended experience lets us prepare safer shipments tailored around local climate, transit time, and end-use environment. We maintain a direct channel with buyers through these logistical phases, fielding practical questions and offering storage recommendations based on actual data, not just paperwork.

    Environmental Responsibility and Worker Safety: No Shortcuts

    Chemical manufacturing brings responsibilities that go beyond technical performance. Regulations around air emissions, waste treatment, and worker safety grow stricter every year. We have responded to these demands, investing in upgraded recovery systems to capture and recycle solvent phase. Not only do these measures protect our staff and neighbors, but they also keep production costs predictable for our clients amid shifting environmental legislation.

    We routinely engage in on-site hazard evaluations and collaborate with local environmental authorities to ensure our entire production train operates responsibly. Worker safety protocols—rigorous PPE, dedicated ventilation, regular health screenings—have evolved alongside our technical capabilities. Our operational leadership believes safe production goes hand in hand with output quality; we share incidents and root causes for review across every shift, reducing risk through transparency, not blame.

    Customers have, on occasion, visited our process lines and noted the visible difference in safety culture. We welcome joint reviews and knowledge sharing regarding best practices for malonate esters, fostering mutual trust that extends from the first sample right through multi-ton shipments.

    R&D Support: Beyond the Product Itself

    Our technical support doesn’t stop at filling orders. Research teams often work through challenging reaction mechanisms or face unpredicted byproducts in complex multi-step syntheses involving malonate derivatives. Our R&D team promptly reviews such feedback and, when needed, proposes modified process conditions or product variants, drawing from both laboratory expertise and production floor realities.

    In one case, a client developing new veterinary actives struggled with incomplete alkylation under traditional protocols. Our chemists suggested minor adjustments in base concentration and solvent polarity, shortening batch times while driving selectivity for the desired product. We recognize these knowledge exchanges as two-way streets; returning data from these projects strengthens our own formulation process and, ultimately, future batches for other users.

    What Our Customers Really Value

    Chemists who depend on Diethyl Isopropylmalonate seek more than a commodity—they want a supplier who understands their pain points and a product that delivers clear outcomes. Reliability isn’t a tagline; it’s what prevents repeat rework and wasted resource. Our conversations with pilot plant managers and raw material procurement officers underscore the stakes: every inconsistency in quality can set off a cascade of lost time and increased costs. Knowing that our material consistently meets the most stringent analytical and application demands ensures seamless integration into established workflows.

    Process engineers tasked with cost reduction also notice the difference; the selectivity and lower byproduct formation of our Diethyl Isopropylmalonate allows for leaner downstream purification and improved throughput. The impacts extend far beyond individual batches. Project teams integrating our product into production see improved overall yields, simplified quality control, and fewer delays or recalls. These gains only become possible after years of manufacturing insight, focus on analytics, and relentless push for improvement.

    Continuously Raising the Bar

    Every year brings updated standards, new application techniques, and fresh regulatory scrutiny. Our team follows developments at the intersection of analytical methods, process scale-up, and final product quality. The insights we gather are shared internally and, where appropriate, with our clients. Twice a year, our review sessions sift through incident reports, successful optimizations, and customer feedback on Diethyl Isopropylmalonate to set new internal benchmarks.

    The learning never ends, whether a chemist is scaling up a new pharmaceutical candidate or a crop science innovator is refining methodology. Our in-house training keeps all operators fluent in the latest best practices, both in production line technique and safety monitoring. The practical knowledge gained here eventually supports our clients, feeding into more stable, higher performing products year after year.

    Addressing Bottlenecks: How Practical Solutions Are Found

    In chemical manufacturing, bottlenecks often appear with little warning. Our experience has shown that the way to resolve supply disruptions or scale-up issues is to respond quickly and lean on technical know-how, not empty promises. When a key raw material faced global shortages, our procurement team leveraged long-term relationships to secure uninterrupted flow, allowing us to avoid short shipments to loyal customers.

    Production slowdowns, whether due to equipment failure or unexpected reaction profiles, prompt immediate troubleshooting. Shift supervisors and process chemists work collaboratively to review batch data, run rapid root cause analyses, and test revised process parameters in parallel. This rapid, transparent approach has kept our Diethyl Isopropylmalonate available during times when others in the market faltered—again, a point of pride that comes only from boots-on-the-ground problem solving.

    Pursuing Innovation Without Compromising Reliability

    Innovation stays front and center for our production and technical team. Emerging trends in green chemistry and continuous processing inspire us to optimize not just product quality, but also the ways our Diethyl Isopropylmalonate is manufactured and packaged. We invest in pilot-scale studies to validate new synthetic routes or purification processes, only adopting changes when they translate to genuine improvements in safety, environmental impact, or functional performance for our customers.

    Our experience has taught us the value of thoughtful change: innovations that disrupt reliability never move forward. We encourage clients to propose process improvements and share back data from their novel applications. This open channel leads to new standards and new opportunities—for both sides.

    Looking Ahead: Long-Term Collaboration and Support

    The journey of delivering a trusted specialty chemical like Diethyl Isopropylmalonate never truly ends. Customer feedback loops constantly update our priorities. Each project, whether a small custom batch or a routine ton-scale delivery, informs how we approach quality management and product improvement moving forward.

    We advocate for direct, candid conversations—about successes, sourcing challenges, even failures. The real impact of our Diethyl Isopropylmalonate isn’t just measured in analytical data, but in the trust and collaboration that have kept our business growing alongside innovators in pharmaceuticals, agriculture, and beyond.

    As regulations, applications, and industrial landscapes evolve, we bring the combined weight of experience, adaptability, and reliability to every lot shipped. Diethyl Isopropylmalonate, in our hands, means more than a molecule: it represents a partnership shaped by years of manufacturing know-how and a culture of improvement that benefits every chemist who relies on it.