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3-Methylpentanedial

    • Product Name 3-Methylpentanedial
    • Alias 3-Methylglutaraldehyde
    • Einecs 211-266-5
    • 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
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    Specifications

    HS Code

    828743

    Chemicalname 3-Methylpentanedial
    Molecularformula C6H10O2
    Molarmass 114.14 g/mol
    Casnumber 565-71-9
    Appearance Colorless to pale yellow liquid
    Boilingpoint 178-180 °C
    Meltingpoint -47 °C
    Density 0.936 g/cm3
    Solubilityinwater Slightly soluble
    Flashpoint 65 °C
    Refractiveindex 1.424
    Pubchemcid 12080

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

    Packing & Storage
    Packing The 3-Methylpentanedial is packaged in a sealed 100 mL amber glass bottle with a tamper-evident cap and hazard labeling.
    Shipping 3-Methylpentanedial should be shipped in tightly sealed, corrosion-resistant containers to prevent leakage and protect against moisture. It must be labeled according to hazardous chemical regulations and transported in compliance with local, national, and international guidelines. Avoid exposure to extreme temperatures and incompatible materials. Handle with appropriate safety precautions during shipping and handling.
    Storage 3-Methylpentanedial should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from direct sunlight and sources of ignition. Keep it separate from oxidizing agents, acids, and bases. Store at room temperature and avoid excessive heat. Ensure proper labeling and use secondary containment to prevent leaks or spills. Always follow standard chemical storage guidelines.
    Application of 3-Methylpentanedial

    Applications of 3-Methylpentanedial in Industrial Manufacturing

    As a direct manufacturer of 3-Methylpentanedial, we supply this specialty dialdehyde to key sectors where its unique reactivity and aldehyde structure meet stringent technical requirements. Below we detail proven downstream applications that utilize our material, outlining regulatory standards, precise formulation levels, process integration stages, and end product types—ensuring focused, evidence-based content for our industrial partners.

    1. High-Performance Polymer Intermediate for Specialty Polyurethanes

    In the polyurethane sector, producers employ 3-Methylpentanedial as a specialty chain extender to engineer modified polyol formulations. Characterized by improved flexibility and chemical resistance, these resins address the need for advanced coatings, adhesives, and elastomers. Manufacturers precisely blend it into pre-polymer mixtures, targeting mechanical and weathering specifications demanded by premium industrial, automotive, and electronics applications.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006—registration and safe use compliance in Europe
    • ISO 9001:2015 for quality-controlled polymer manufactories
    • RoHS Directive (EU) 2015/863 for electronics and electrical use
    • Automotive OEM supplier standards (e.g., IATF 16949:2016)

    Typical usage ratio

    • 0.5–2.5% relative to total polyol or isocyanate component, optimized based on desired crosslink density, flexibility, and application (e.g., 0.8–1.2% for flexible foams, up to 2.5% for high-durability elastomers)

    Downstream process integration

    • Dosed into the polyol stream or prepolymer blend before main polymerization
    • Homogeneously mixed at controlled temperatures (typically 40–80°C)
    • Integrated during batch or continuous reactive extrusion for coatings, adhesives, elastomers, and molded parts

    Final product types

    • Industrial polyurethane adhesives and sealants
    • Automotive elastomeric bushings and vibration dampers
    • Durable coil coatings for electrical and electronic assemblies
    • Specialty high-resilience polyurethane foams

    2. Crosslinking Agent in Waterborne Alkyd and Acrylic Resin Systems

    Waterborne coating manufacturers prefer 3-Methylpentanedial for its selective crosslinking capability in curing alkyd and acrylic resin blends, especially where low-VOC and rapid ambient curing are required. Its bifunctional aldehyde groups generate additional curing points, enhancing film hardness and chemical resistance in architectural and industrial coatings. Regulatory scrutiny and precise formulation are critical for consistent film characteristics and environmental compliance.

    Industry compliance standards

    • US EPA 40 CFR Part 63—National Emission Standards for Hazardous Air Pollutants (NESHAPs) for surface coating operations
    • ASTM D3363 and D4060 for coating film hardness and abrasion testing
    • ISO 12944-5 for corrosion protection requirements in protective coatings
    • EU Directive 2004/42/EC regarding limitation of VOC in paints and varnishes

    Typical usage ratio

    • 0.2–1.0% by weight, adjusted according to resin type, solids content, and targeted film properties (higher for industrial floor coatings, lower for decorative paints)

    Downstream process integration

    • Emulsified into resin dispersions during the let-down phase or before final pigment dispersion
    • Curing is initiated at ambient or elevated temperatures via catalytic or self-crosslinking mechanisms
    • QC protocols verify film performance after drying/curing

    Final product types

    • Industrial and commercial waterborne paints for construction, automotive, and marine use
    • Epoxy-acrylic hybrid metal primers
    • High-performance architectural wall coatings
    • Floor sealants and varnishes with increased resistance to abrasion and chemicals

    3. Reactive Building Block for Fine Fragrance Aroma Aldehyde Synthesis

    Fragrance chemical producers value 3-Methylpentanedial as a starting material for custom aroma aldehydes that impart unique scent notes in high-value perfumery compositions. It enables precision modification through aldol condensation and selective reduction, producing proprietary aroma molecules while meeting strict allergen, purity, and cosmetic safety requirements. Process traceability and regulatory alignment support compliance in global fragrance markets.

    Industry compliance standards

    • IFRA Code of Practice (latest amendment) for fragrance material safety
    • EU Cosmetics Regulation (EC) No 1223/2009
    • ISO 9001 and 22716 for fragrance and cosmetic ingredient manufacturing quality control
    • Allergen labeling according to EC 2003/15 in final consumer products

    Typical usage ratio

    • Utilized as a core precursor at mole ratios tailored to the synthesis pathway—generally 0.1 to 10% of total feedstock, depending on scale, with downstream compounds dosed at trace (sub-ppm to low percent) levels in finished fragrances

    Downstream process integration

    • Charged into reaction vessels with other aldehyde or ketone components for aldol condensation under catalysis
    • Subsequent steps may include reduction/hydrogenation, purification, and crystallization
    • Product QA includes GC-MS purity profiling and allergen screening

    Final product types

    • Signature aroma aldehyde building blocks for luxury fine fragrances
    • Cosmetic and personal care fragrance blends requiring custom scent notes
    • Complex aroma chemicals for use in perfumed household products

    4. Curing Component in Specialty Isocyanate-Free Polyimide Resins

    Advanced materials manufacturers utilize 3-Methylpentanedial to promote curing and thermal crosslinking in isocyanate-free polyimide and polyamide-imide systems, providing stable imide linkages for electronics, aerospace, and high-temperature insulation applications. Its unique molecular architecture supports improved flexibility and dimensional stability in polyimide films, meeting rigorous flame retardance and dielectric requirements.

    Industry compliance standards

    • UL 94 V-0 flame retardant standard for electrical insulation materials
    • IPC-4101 for base materials in printed wiring boards
    • ASTM D7264 for flexural properties of polymer matrix composites
    • ISO 14001:2015 for environmental management in high-performance polymer facilities

    Typical usage ratio

    • 0.8–2.0% by weight of total polyimide or polyamide-imide system, fine-tuned for flexibility and targeted mechanical properties in insulated film and resin castings

    Downstream process integration

    • Introduced during polyamic acid solution blending before imidization stage
    • Curing occurs through controlled thermal treatment (typically 220–350°C)
    • In-line QC ensures molecular weight distribution and imide conversion

    Final product types

    • Flexible printed circuit (FPC) substrates
    • High-temperature magnet wire insulation coatings
    • Aerospace-grade laminated insulating films
    • Specialty molded components for electrical and electronic assemblies
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    Certification & Compliance
    More Introduction

    3-Methylpentanedial: Product Introduction and Manufacturer's Perspective

    What Sets 3-Methylpentanedial Apart

    Our experience in chemical manufacturing gives us a clear view of what matters most in high-purity dialdehydes. We developed 3-Methylpentanedial with a focus on consistency and purity, because these two qualities heavily impact how reliable the results are in downstream applications. As an aliphatic dialdehyde, 3-Methylpentanedial (CAS 565-69-5) stands out for its C6 backbone and methyl branching, unlike common linear aldehydes. This branching offers distinct reactivity and makes it more than a drop-in substitute for better-known aldehydes, such as glutaraldehyde or pentanedial. Our model, produced in our dedicated facility, has a minimized water content, which reduces unwanted side reactions in sensitive syntheses.

    Our Manufacturing Approach

    Maintaining strict control over raw materials, temperature, and purity at every stage led to a consistent product profile. The process relies on selective oxidation reactions tailored so side products remain low. We have refined the downstream purification steps, using fractional distillation under reduced pressure, to ensure each batch reaches a repeatable high standard. The approach is energy-intensive but provides the control needed to avoid impurities that disrupt certain fine chemical syntheses.

    This product delivers a minimum purity of 98%, with the main impurity being trace levels of unreacted precursor or over-oxidation byproducts. The batch-to-batch reproducibility is a result of years managing reactor agitation rates and precise temperature profiles. There is no shortcut here—careful attention during both synthesis and packaging ensures an aldehyde with little color or degradation after shipment. We keep oxygen and moisture out by using nitrogen blanketing, a process familiar to most experienced chemical operators. Storage recommendations come straight from our lab work and multiple customer collaborations: low temperature, sealed containers prevent the formation of acidic byproducts and keep the shelf life long.

    Why Purity in 3-Methylpentanedial Matters

    When reactions use dialdehydes as crosslinking or modifying agents, trace side products can mean discoloration, lower yields, or unexplained failures in analytical tests. This is not theory; we have seen customers in aroma chemistry and pharmaceutical intermediates struggle with small amounts of acid contamination in aldehyde products. For resins or specialty polymers, even small shifts in dialdehyde structure can affect viscosity, cure time, and molecular architecture.

    3-Methylpentanedial’s methyl group differentiates it clearly from glutaraldehyde, another dialdehyde, which lacks branching. As a result, its reactivity toward nucleophiles changes. We have watched polymer chemists leverage this unique geometry to introduce flexibility or steric hindrance in cross-linked materials. Users seeking more rigid crosslinks often choose glutaraldehyde; for added chain mobility and new architectures, they shift to methylated dialdehydes like ours.

    Application Experience: Synthesis, Modification, and Performance

    Most requests for 3-Methylpentanedial come from researchers and manufacturers creating advanced resins, intermediates for pharmaceuticals, and agents for crosslinking or chain elongation. In resin manufacturing, our product’s structure allows adjustments in polymer flexibility. The extra methyl branch offers a route to control crosslink density, which can alter thermal or mechanical performance in the final material.

    We have directly supported process chemists exploring imine and Schiff base formation with 3-Methylpentanedial. The dialdehyde’s reactivity profile makes it preferred in syntheses where side reactions with water, alcohols, or amines are critical. The decision to use our dialdehyde, based on its methyl group, often follows internal lab screening—process teams look for yield boosts or changes in end-group properties that open up new product lines.

    We helped an adhesive manufacturer reformulate a specialty polymer, swapping out glutaraldehyde for 3-Methylpentanedial, which improved flexibility and peel strength. This was not theoretical optimization, but the result of hands-on pilot trials where our technical staff worked alongside their team. In aroma chemical manufacturing, we’ve seen 3-Methylpentanedial serve as a building block for scent intermediates. Its structure introduces unique notes and functional groups in molecules evolved beyond simple six-carbon assemblies. Here, purity is linked not only to product yield but also to aroma profile—each ppm of byproduct changes the story.

    Handling, Shipping, and Process Integration

    Shipping aldehydes over long distances introduces risk: polymerization, air oxidation, and hydrolysis. Part of our job as manufacturers is guaranteeing a safe, fresh delivery. We use stainless steel drums and nitrogen purging for large quantities, and amber glass for laboratory scale. Each container comes with a tamper-evident seal and documentation from our in-house analytics lab.

    Process engineers working with 3-Methylpentanedial notice the importance of fresh, uncontaminated reagent in scale-up. Our product avoids acid formation during shipping. This prevents the need for neutralization steps, which interrupt continuous processes and add waste. For large batch syntheses, we recommend inert gas sweeping and careful temperature control, as the product holds its form best at low temperature, remaining clear without unwanted reaction byproducts.

    We have responded quickly when a customer’s process required a batch with even lower residual water. Instead of dictating limits in a vacuum, we worked directly with them, modifying our drying and packaging protocols. The result: improved reactivity for their amine-coupling application and a long-term partnership. These collaborations drive the standards for each lot shipped.

    Comparisons and Key Distinctions from Other Dialdehydes

    Some buyers assume all dialdehydes serve the same purpose, but experience shows otherwise. Our 3-Methylpentanedial differs from glutaraldehyde and straight-chain pentanedial in more than just structure. Its melting and boiling points, solubility in polar and nonpolar solvents, and pKa values affect how it behaves in condensation, polymerization, or acetal formation. The methyl branch influences reactivity towards nucleophiles, leading to cleaner, more controlled transformation pathways in chemical synthesis.

    Several customers initially tried to blend 3-Methylpentanedial with other dialdehydes to adjust reactivity or physical properties. Our technical reports advised against random mixing, as this can introduce complications with downstream analytical separation and batch reproducibility. Instead, choosing one dialdehyde based on reaction pathway and desired end properties gives more predictable results.

    During analytical testing—whether using GC, HPLC, or spectroscopic techniques—3-Methylpentanedial produces distinctive peaks, helping with quality control and reaction monitoring. Its methylated backbone stands out in the fingerprint region of infrared spectra, providing conclusive proof that the right reagent participated in the reaction. For process chemists and lab analysts, these differences make quality assurance clearer and troubleshooting more straightforward.

    Meeting Customer Needs Through Experience

    Over years of supplying specialty chemicals, we learned that customer priorities shift as markets evolve. Markets like coatings, synthetic lubricants, and specialty adhesives now seek more flexibility in their resin formulations. Our 3-Methylpentanedial bridges the gap, giving these industries a tool to move beyond traditional crosslinking agents. Repeated feedback cycles from industrial users guide our purification steps and packaging options.

    Tight manufacturing tolerances and open communication enable us to adapt to new demands. One case involved a customer in the electronics sector who sought a dialdehyde with specific reactivity for printed circuit laminates. After analyzing their process, we made small but impactful changes in our downstream handling to deliver a product that matched their performance requirements. The outcome was higher yield and less waste, strengthening their supply chain without unnecessary process substitutions.

    Why Direct Manufacturer Relationships Matter

    Purchasing directly from us means benefiting from the knowledge and traceability only a manufacturer can provide. As the original source, we monitor every reaction batch, analyze each lot, and troubleshoot based on root cause—not guesswork. Raw material traceability and documentation stand open to our partners. If application challenges arise, our R&D chemists speak from firsthand experience working with this dialdehyde.

    This is not a case of box-shifting or anonymous sourcing. Customers value direct insight into shelf life, chemical compatibility, or adulteration risks, because these issues tie directly to batch outcomes. In regulated industries such as pharma or food-contact materials, access to our batch records, impurity profiles, and process data builds trust and avoids compliance concerns.

    Questions and Solutions from the Field

    End-users often want to know about environmental impacts, worker safety, and waste handling. Our team has carried out in-house monitoring on air emissions and workplace exposure. For waste streams, we recommend incineration or oxidative degradation, as local regulations allow. Direct feedback over many years shows that careful drum selection and proper personal protective equipment prevent operator exposure and loss incidents without complicating production lines.

    For businesses aiming to minimize downtime, we have shared best practices in handling aldehydes safely. Simple steps like closed-system transfers and dry nitrogen blankets extend product shelf life and reduce spoilage risks. Customers benefit from our incident records and solution protocols, which we developed by troubleshooting real-world mishaps—not just by reading literature or spec sheets.

    Commitment to Product Quality and Future Development

    Continuous quality improvement defines our business. Each production run of 3-Methylpentanedial draws on decades of process data and operator experience. When new applications call for custom dialdehyde grades—such as higher assay levels or tailored impurity profiles—we invest in flexible batch protocols to deliver what our customers want. This includes scaling new distillation setups and modifying reactor conditions based on direct technical exchange.

    Emerging sectors such as advanced materials push us to explore what this dialdehyde can do beyond standard applications. Graduate researchers and development chemists often approach us for advice on scaling up or for tailor-made sample quantities. We support these efforts because innovation at the user level drives progress at ours. We are ready to work with unconventional approaches, having adapted our process to fit new reaction conditions or starting materials.

    Regulatory and sustainability demands continue to grow. We have invested in in-house analytics, robust supply chain audits, and have drafted clear documentation to keep buyers confident in their sourcing. Our internal safety reviews reflect evolving workplace standards, and our waste handling recommendations follow current national and global guidance.

    The Role of 3-Methylpentanedial in Tomorrow’s Chemistry

    Specialty dialdehydes like ours play a growing role in industries seeking tailored reactivity and advanced product features. As global demand shifts, we respond by refining our process and staying open to new uses. Our role is more than producing a commodity; it involves solving specific challenges alongside those who put chemistry to work every day.

    Every drum, bottle, or tanker of 3-Methylpentanedial leaving our facility reflects manufacturing standards that evolved through years of partnership with real users. Consistent quality, clear communication, and direct technical support set us apart from traders or multi-sourced suppliers. For buyers and technical leads seeking trustworthy supply, our own knowledge and practical approach provide peace of mind—and results they can measure.