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Dimethyl Dodecanedioate

    • Product Name Dimethyl Dodecanedioate
    • Alias Dimethyl dodecanedioate
    • Einecs 252-264-9
    • 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

    206507

    Cas Number 1732-08-7
    Molecular Formula C14H26O4
    Molecular Weight 258.35 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 358°C
    Melting Point -1°C
    Density 0.983 g/cm3 at 20°C
    Flash Point 154°C
    Solubility In Water Insoluble
    Refractive Index 1.436 (20°C)
    Purity Typically ≥98%
    Odor Mild, ester-like
    Logp 4.8
    Vapor Pressure 0.000051 mmHg at 25°C

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

    Packing & Storage
    Packing Packaged in a 500g amber glass bottle with secure screw cap, featuring hazard labels and clear chemical identification for laboratory use.
    Shipping Dimethyl Dodecanedioate is shipped in tightly sealed containers, typically drums or jerrycans, to prevent leakage or moisture contamination. It should be stored and transported in a cool, dry, well-ventilated area. Ensure containers are properly labeled, handled with care, and protected from physical damage during transit to maintain product integrity.
    Storage Dimethyl Dodecanedioate should be stored in a tightly sealed container in a cool, dry, and well-ventilated area away from sources of ignition or incompatible substances, such as strong oxidizers. Protect from direct sunlight and moisture. Ensure proper labeling and keep away from food and drink. Storage temperatures should be maintained at room temperature to prevent decomposition or unwanted reactions.
    Application of Dimethyl Dodecanedioate

    Applications of Dimethyl Dodecanedioate in Industrial Manufacturing

    Dimethyl Dodecanedioate serves as an essential chemical intermediate in several specialized chemical production sectors. As the manufacturer, we supply this raw material for stringent downstream processing needs, focusing on technical compliance, production reliability, and finished product quality. Below, we highlight major industrial applications with details on compliance, usage, integration, and end products.

    1. Polyamide 612 Monomer Synthesis

    Dimethyl Dodecanedioate is a critical monomer precursor in the polymerization of nylon 612. Leading polymer manufacturers require this ester for efficient transesterification and subsequent polymerization processes. Our material enables controlled chain length and polymer microstructure, which is necessary to meet the strength, flexibility, and performance targets in engineering plastics.

    Industry compliance standards

    • ISO 9001:2015 Quality Management
    • REACH Regulation (EC) No 1907/2006
    • GB/T 20406 Polyamide Resin Standard (China)
    • RoHS 2011/65/EU for electrical products using nylon 612

    Typical usage ratio

    • 40–60% by weight in co-monomer mix for condensation with hexamethylene diamine
    • Ratio is adjusted based on the molecular weight target and desired crystallinity

    Downstream process integration

    • Transesterification with diamines under nitrogen at 170–220°C
    • Direct feeding into continuous polymerization reactors
    • Pre-polymer melt purification for high-spec applications

    Final product types

    • Nylon 612 chips and pellets
    • Extruded monofilaments
    • Injection-molded automotive connectors
    • High-flexibility cable sheathing

    2. High-Performance Polyester Synthesis

    Dimethyl Dodecanedioate is used in the production of high-melting aliphatic polyesters, especially for specialty engineering polymers. It reacts with diols to form linear, semi-crystalline polyesters suitable for industrial-grade fibers, films, and sheets requiring thermal and chemical resistance. Accurate dosing and polymerization control are vital for achieving end-use certifications.

    Industry compliance standards

    • EN 15343:2007 for polyesters in packaging
    • US FDA 21 CFR 177.1590 for certain polyester food contact applications
    • Good Manufacturing Practice (GMP) for polymeric intermediates
    • ISO 14001 Environmental Management (for waste minimization)

    Typical usage ratio

    • 45–55% of diacid/dimethyl ester feed for polycondensation with diols
    • Adjusted for flexibility, crystallinity, and melting point based on downstream product specs

    Downstream process integration

    • Esterification and polycondensation with ethylene glycol, 1,4-butanediol, or other diols in batch or continuous reactors
    • Vacuum stripping and devolatilization steps to reach desired polymer chain length
    • Direct pelletization post-polymerization for fiber spinning or film extrusion

    Final product types

    • High-clarity polyester films for electronics
    • Hot-melt adhesive base polymers
    • Industrial polyester fibers
    • Co-extruded rigid sheets for specialty packaging

    3. Synthesis of Specialty Lubricant Esters

    Dimethyl Dodecanedioate is increasingly integrated in the lubricant industry for formulating synthetic ester base stocks, often used where high-temperature or low-temperature fluidity is required. Industrial formulators utilize this intermediate to build multifunctional lubricants with excellent oxidative stability and controlled viscosity.

    Industry compliance standards

    • ASTM D7042 for lubricant viscosity classification
    • ISO 21469 for safety of lubricants in incidental food contact equipment
    • RoHS compliance for electrical/electronic lubricants
    • IEC 60296 for transformer oil lubricity tests (where applicable)

    Typical usage ratio

    • 20–40% in esterification reactions with selected alcohols
    • Adjusted depending on desired viscosity index and pour point in final product

    Downstream process integration

    • Esterification under catalytic conditions in stainless reactors at 140–180°C
    • Fractional distillation for removal of unreacted esters and by-products
    • Pre-blending before additive package introduction

    Final product types

    • Synthetic compressor oils
    • Low-temp hydraulic fluids
    • Food-grade chain lubricants (H1 type)
    • High-load gear lubricant bases

    4. Raw Material for Adhesive Resin Intermediates

    Formulators use Dimethyl Dodecanedioate in the synthesis of aliphatic polyester polyols, which are further processed into polyurethane and co-polyester adhesives. Its molecular structure supports flexibility and hydrolysis resistance, making it indispensable for adhesives that must endure repeated mechanical stress and varying climatic conditions.

    Industry compliance standards

    • ISO 10993-5 for biocompatibility (medical adhesive applications)
    • FDA 21 CFR 175.105 for adhesives in indirect food contact
    • REACH SVHC monitoring for restricted intermediates
    • Solid content and migration tests per EU 10/2011 for packaging adhesives

    Typical usage ratio

    • 30–55% in diester polyol backbones to control molecular flexibility
    • Ratio tailored for polymer chain architecture and crosslinking density

    Downstream process integration

    • Initial esterification with glycols or polyols in batch reactors
    • Vacuum desolvation to remove excess methanol and volatiles
    • Downstream blending with isocyanates or acrylics for adhesive resin formation

    Final product types

    • Flexible hot-melt adhesives
    • Solvent-based structural adhesives for engineering assembly
    • PU adhesive dispersions
    • Automotive and electronic component assembly adhesives

    5. Intermediate for Cosmetic Emollient Manufacture

    This material features in the synthesis pathway of high-purity emollient esters for personal care and cosmetics. It is favored by cosmetic ingredient producers for building light, spreadable esters with low odor and enhanced oxidative stability. Downstream QC requires precise control of raw material purity, process temperature, and residual solvent removal.

    Industry compliance standards

    • ISO 22716:2007 Cosmetics GMP
    • EU Regulation (EC) No 1223/2009 for cosmetic safety
    • IFRA standards for fragrance safety
    • FDA 21 CFR Part 700 for cosmetic ingredient labeling

    Typical usage ratio

    • 20–45% in esterification with short-chain alcohols for finished emollients
    • Ratio adjusted per emollience, viscosity, and sensory requirements

    Downstream process integration

    • Reacted via acid-catalyzed esterification at 120–160°C in cGMP reactors
    • Multi-stage distillation for purification and dewaxing
    • Quality-controlled blending prior to packaging and shipment to formulators

    Final product types

    • Skin care emollient esters
    • Low-viscosity specialty cosmetic oils
    • Conditioning agents in hair care formulas
    • Sunscreen carrier oils
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    Certification & Compliance
    More Introduction

    Understanding Dimethyl Dodecanedioate: Real-World Insights from the Manufacturer

    From Our Reactor to Your Application: Our Story with Dimethyl Dodecanedioate

    Dimethyl dodecanedioate connects decades of technical experience in diester production with a drive for cleaner, smarter materials. At our site, every kilogram that leaves the plant reflects the careful steps taken from monomer selection to purification. Our team doesn’t take shortcuts; we're firm believers that process control, raw material traceability, and closed system transfers keep this product’s value high—never something generic or complacently specified.

    The grade we release, often referred to in the market as DMDDA, looks straightforward at first glance: a clear, colorless liquid in drums or IBCs, CAS number 1732-10-1. With a formula of C14H26O4 and a molecular weight near 258.36, it meets the needs of formulators who require pure diesters at scale. Yet, there’s plenty beneath the surface chemistry. We set hardness specs between 98% and 99.5% by GC analysis, and water, when present, stays well under 0.2%. Any color holds below 30 Pt/Co. Over the years, we’ve found these numbers give polymer teams the confidence to scale, and specialty projects a window into stable, repeatable results.

    What Sets Dimethyl Dodecanedioate Apart

    In chemical manufacturing, every process runs on relationships—often one molecule connects to the next in long production pathways. DMDDA serves as a trusted intermediate. Our customers are direct: they don't want guesswork when introducing new esters into established production lines. For polyester and polyamide synthesis, DMDDA brings a clean C12 chain, letting formulators impart flexibility and control crystallinity in specialty polyesters, copolymers, and performance plastics.

    This diester’s linear dodecanedioic backbone stands out from shorter or branched alternatives. Manufacturing teams keep pointing out that odd carbon counts or impurities lead to chain irregularity—a recipe for weaker material and unpredictable melting behavior. Our DMDDA delivers C12 precision, cut straight from dodecanedioic acid esterification rather than from mixed acid chemistry. By holding the process steady and using only distilled methanol in the transesterification step, we eliminate minor branched isomers or unreacted acid, helping customers avoid downstream color, odor, and reactivity headaches.

    End Uses and Customer Applications—Honest Findings from Shared Experience

    Chemists and engineers working with DMDDA rarely call for only high purity. They look for consistency, supply assurance, and a partner who tracks the upstream details. Our clients use this molecule in high-value thermoplastic polyesters, long-chain polyamides, and as a critical intermediate for lubricant esters, but also for pharmaceutical building blocks, agrochemical formulations, and specialty coatings. Each batch needs to match the last one because line downtime or off-spec polymer wastes days, not hours.

    Over the years, we’ve responded to customers who challenge our process. Polymer startups have rolled up at our loading bay, asking for tighter specifications. Industrial groups with high-throughput reactors call at midnight to verify contaminant controls. We run additional GC traces, log the mass balances, and keep the documentation open. This is the real difference between being the actual manufacturer and just another name in the supply chain.

    Some of our partners use DMDDA to synthesize polyesters with tailored melting ranges for adhesives, powder coatings, and plasticizers. Its dodecanedioic origin means it performs better than dimethyl sebacate or dimethyl adipate when higher flexibility and hydrolytic stability matter. This means fewer field failures when plastics encounter heat or humidity. Others use its methyl ester end groups to introduce chemical handles for further modification, especially in medical or controlled-release sectors, where molecular uniformity translates to product reliability.

    Looking Beyond Commodity Esters

    It’s tempting to compare DMDDA to mass-market diesters like dimethyl adipate, because both see use in polymer or plasticizer applications. The differences run deeper than carbon count or boiling point. Our teams watch for small hints of degradation—color shifts, aldehyde off-odors, or unwanted brine layers. DMDDA resists hydrolysis better during melt-stage polycondensation. Technicians confirm side reactions happen less often, particularly under acidic or basic conditions.

    Some buyers look for price-point chemicals. That might work with less demanding applications. When a customer’s end product must survive mechanical stress or aggressive sterilization, raw material purity sets the baseline for success. This is where in-plant quality systems, direct feedback loops from our production teams, and in-house application tests play a big role. We’ve seen polymer chains extended with low-quality diesters snap during pilot-scale tests. Material engineers know that, so they specify our product because we put feet in both quality and quantity camps.

    Perspectives from Decades of Direct Synthesis

    Our approach comes from putting years into mid-chain dicarboxylic chemistry. The diesterification process has been optimized over hundreds of campaigns. Early plant trials taught us about catalyst selection, distillation rates, and trace side-product removal. A few parts per million of free acid can kill a polymerization; a little too much water upsets the polyamide process. We’ve re-engineered heat transfer coils, adjusted agitator speeds, and retrofitted reactors so DMDDA comes off clean, bright, and with batch-to-batch repeatability.

    QA and R&D track every detail. During product launches, we invite process chemists to observe how we document methanol recovery and acid residue. This isn’t a sales pitch. It’s evidence that our DMDDA stands up to scrutiny from every technical auditor, whether they’re from bioscience, aviation, or the medical field. We’re not a faceless supplier with a standard paragraph and a set of “typical properties.” We invite feedback, log every troubleshooting session, and invest in analytical equipment based on real-world customer challenges. If end-users call about gel points, crystallinity problems, or unwanted cross-linking, we bring those findings right back to our production teams.

    Why Purity and Supply Chain Control Matter

    The chemical market isn’t isolated from global events. Disruptions in upstream assets, changes in methanol markets, or dodecanedioic acid shortages ripple down quickly. Because we make DMDDA from scratch, not just fractionating it from a blend, we control the trajectory—from raw acid delivery to nitrogen blanketing and drum filling. Internal audits, periodical qualifications, GHS-compliant labeling, and batch retention form the backbone of our risk management. Our customers recognize that real collaboration means open communication about process hazards, logistics, and product traceability.

    Having inventory on hand reduces lead times and supports just-in-time production. Our plant maintains buffer stocks and real-time visibility into every lot’s history. If a major account faces an unexpected upturn in demand, we can synchronize drum shipments or accelerate IBC turnover without relying on over-the-horizon container deliveries.

    Feedback, Continuous Improvement, and Technical Partnerships

    Direct communication with our technical partners shapes every improvement in our line. A major European polymer group recently pointed out that our DMDDA kept their continuous reactor running cleaner than an alternative sourced from a trader. Our R&D team looked into this, running parallel pilot loads with both materials. GC and FTIR revealed subtle differences in trace linear isomers. We updated our distillation endpoint and reduced batch retention times, locking in tighter specifications.

    This isn’t theoretical; it relates directly to customers’ production uptime, product performance, and ultimately their market reputation. We believe the technical backbone of chemical manufacturing starts with open books, willingness to learn from downstream feedback, and investment in process upgrades before something breaks.

    From Bulk Loads to Custom Solutions

    Our facility handles a range of order sizes, with most volume bound for polyester and nylon synthesis. For specialty developers, we support custom-cut lots and even alternate solvent flushes. We put a premium on regular QA releases, sample archiving, and customer-supported method development. Questions about reactivity, solvent compatibility, or byproduct formation go straight to our chemists, who track each issue through its lifecycle—not as tickets, but as practical problems to solve.

    We’ve supported ambitious startups looking to advance biodegradable polymer projects as well as multinationals facing regulatory shifts in key plasticizers. Each customer’s requirement flows upstream, shaping how we control catalysis, minimize cross-contamination, and configure delivery logistics. As industries chase more robust, safer, and more sustainable chemistry, we see DMDDA’s clean backbone and consistent performance helping to de-risk new development.

    Navigating Regulatory, Environmental, and Market Developments

    Dimethyl dodecanedioate’s regulatory story continues to evolve. Some applications demand REACH, FDA, or ISO compliance. We maintain master files and collaborate with third-party laboratories for toxicology and migration testing. Full material disclosure, including residual solvents and trace metal analysis, comes with every shipment above pilot scale. By working this closely with our compliance team—and engaging proactively with customer audits—we build trust and help users navigate their own product stewardship obligations.

    Environmental pressure on traditional plasticizers, solvent residues, and non-biodegradable intermediates is rising. DMDDA’s profile, with its clean degradation path and lower toxicity, offers new routes to meet tightening legislative requirements on phthalate alternatives and low-VOC polymers. Our sustainability efforts include waste minimization, methanol recovery systems, and optimized steam consumption, helping reduce the overall carbon footprint for our customers’ downstream processing.

    Why We All Benefit from More Transparent Chemistry

    As a direct producer, we keep technical and commercial channels open. Our chemists remain available to troubleshoot polymer bottle failures or investigate unexpected reactivity changes. Every year, our technical team joins industry working groups and supports educational outreach, because building stronger supply chains means fostering the next wave of formulators and manufacturers.

    This approach distinguishes us from brokers and repackagers. By handling raw dodecanedioic acid and methanol ourselves, tracking the reaction in-house, and pushing purity standards above the basic market norm, we give customers tools to innovate. Whether the final project goes to auto interior polymers, high-durability fibers, green lubricants, or precision agricultural coatings, the quality built into every drum of DMDDA reflects a company culture where feedback drives improvement.

    What Lies Ahead for Dimethyl Dodecanedioate

    With customer requirements getting stricter and application areas expanding, we anticipate new focus on tighter impurity profiles, faster QA turnaround, and adaptable logistics. From our end, that means investing in continuous reactor technology, improved solvent recovery, and more data integration between lab and production floor. Because we connect directly to downstream users, we see which trends matter—biopolymer startups that push the boundaries on renewable monomers, traditional industrials that require stable, long-chain diesters for durable goods, or emerging applications in specialty chemical synthesis.

    We’re not speculating from a distance—we run the reactors, clean the lines, interpret the data, and ship the product. Dimethyl dodecanedioate’s flexibility, consistency, and predictable performance come from hard-won process knowledge and genuine manufacturer accountability. We stick with customers through product launches, troubleshooting, and new formulation trials. As market expectations evolve, our plant and people adapt, always sharing the journey from raw acid to finished ester—so every partner along the chain gets more than just a molecule: they get proof of expertise and a direct line to the source.

    Final Thoughts from the Factory Floor

    Dimethyl dodecanedioate’s presence across so many industries reflects its reliability and our commitment to doing things right at every stage of the process. Behind every shipment stands a team rooted in the tangible, practical work of manufacturing. We’re here not only to sell but to share, support, and grow with customers—offering our knowledge, learning from every project, and improving alongside the most demanding teams in specialty chemicals. Every day, we make sure what leaves our plant offers more than just a reagent; it delivers trust, transparency, and a platform for better chemistry worldwide.