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N-Butyraldehyde

    • Product Name N-Butyraldehyde
    • Alias butanal
    • Einecs 200-831-0
    • 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

    803637

    Productname N-Butyraldehyde
    Casnumber 123-72-8
    Molecularformula C4H8O
    Molecularweight 72.11 g/mol
    Appearance Colorless liquid
    Odor Pungent, aldehydic odor
    Boilingpoint 75–76 °C
    Meltingpoint -96 °C
    Density 0.801 g/cm³ at 20 °C
    Flashpoint -7 °C (closed cup)
    Solubilityinwater 7.3 g/L at 20 °C
    Vaporpressure 97 mmHg at 25 °C

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

    Packing & Storage
    Packing N-Butyraldehyde is supplied in a 2.5-liter amber glass bottle with secure screw cap, labeled with hazard warnings and product details.
    Shipping N-Butyraldehyde should be shipped in tightly sealed, chemical-resistant containers, protected from heat, sparks, and open flames. It must be labeled as a flammable liquid and stored upright during transit. Comply with all relevant hazardous material transport regulations (such as DOT, IATA, or IMDG) to ensure safe handling and delivery.
    Storage N-Butyraldehyde should be stored in a cool, dry, well-ventilated area, away from heat, sparks, flames, and direct sunlight. Keep the container tightly closed and in a chemical-resistant material. Store separately from oxidizers, acids, and bases. Protect from moisture and avoid storing near food and drinks. Proper grounding and bonding are recommended due to its flammability.
    Application of N-Butyraldehyde

    Applications of N-Butyraldehyde in Industrial Manufacturing

    N-Butyraldehyde serves as an essential intermediate in multiple chemical production chains, supporting advanced manufacturing needs in downstream industries worldwide. With stringent process controls and batch traceability, our facility directly supports industrial customers from fine chemicals to large-scale synthetic resin sectors. Below we outline typical application scenarios, highlighting industry specifications, real formulation guidelines, process integration steps, and finished goods.

    1. Synthesis of 2-Ethylhexanol for Plasticizer Manufacturing

    Chemical manufacturers utilize N-Butyraldehyde as a primary feedstock for 2-Ethylhexanol (2-EH) production, a core ingredient in producing plasticizers such as dioctyl phthalate (DOP) and dioctyl adipate (DOA). The aldehyde undergoes aldol condensation and hydrogenation, and each production stage meets standards for phthalate-based and phthalate-alternative plasticizers in global markets demanding low impurity and high-purity intermediates.

    Industry compliance standards

    • REACH (EC) No 1907/2006 registration for raw materials and plasticizer intermediates
    • ISO 9001:2015-certified quality management during precursor synthesis
    • EU Directive 2011/65/EU (RoHS) compliance for DEHP and phthalate substitution in restricted applications
    • GB 15593-1995 for plastic additives in China

    Typical usage ratio

    • Initial batch charge: 100 parts N-Butyraldehyde to 2.1–2.3 parts sodium hydroxide (for aldol condensation), with hydrogenation steps following a typical aldehyde to hydrogen molar ratio of 1:2
    • Yield adjustments made based on final plasticizer chain length and side reaction minimization

    Downstream process integration

    • Introduced as feedstock in continuous aldol condensation reactors, followed by catalytic hydrogenation (fixed-bed or slurry-phase), prior to distillation and esterification with phthalic anhydride or adipic acid

    Final product types

    • 2-Ethylhexanol (intermediate for plasticizers)
    • Phthalate plasticizers (DOP, DINP)
    • Adipate and trimellitate plasticizers
    • Flexible PVC compounds for cables, flooring, and automotive interiors

    2. Manufacture of Trimethylolpropane (TMP) for Alkyd Resin Production

    TMP production depends on the controlled condensation of N-Butyraldehyde with formaldehyde under alkaline conditions to yield a triol used for high-performance alkyd resins and polyurethane coatings. Process controls target low color and limited byproduct formation for batch stability and ultimate coating durability.

    Industry compliance standards

    • ASTM D5547-15 for alkyd resin intermediates
    • EN ISO 12944 for anticorrosive paint systems incorporating TMP-derived resins
    • ISO 14001 for environmental management during TMP synthesis
    • REACH substance registration for TMP and precursor controls

    Typical usage ratio

    • Condensation reaction: 1 mol N-Butyraldehyde per 3 mol formaldehyde, adjusted to balance yields versus color body reduction
    • Alkali loading: 0.05–0.2 equivalent sodium hydroxide per mole N-Butyraldehyde, monitored for exotherm control

    Downstream process integration

    • Charged into batch or semicontinuous reactors; TMP product then undergoes neutralization, filtration, and vacuum stripping before blending into alkyd resin synthesis vessels

    Final product types

    • Trimethylolpropane (polyol intermediate)
    • Short- and medium-oil alkyd resins
    • Polyurethane dispersions for wood and industrial coatings
    • Powder and water-based paint binders

    3. Production of N-Butanol for Solvent and Coatings Sector

    N-Butyraldehyde acts as the source material in hydrogenation units producing n-Butanol, a primary solvent and intermediate for resins, paints, and specialty esters. Manufacturers deploy heterogeneous catalytic beds to ensure high conversion rates and accommodate regulatory requirements concerning solvent residuals in end products.

    Industry compliance standards

    • EU Regulation (EC) No 1272/2008 for solvent labeling and safety (CLP)
    • EPA TSCA (Toxic Substances Control Act) for US-placed butanol-based solvents
    • JPMA technical standards for industrial coatings in Japan
    • ISO 16100:2009 referencing international solvent use in OEM and refinish coatings

    Typical usage ratio

    • Hydrogenation reactor charge: N-Butyraldehyde to hydrogen at 1:2 molar ratio, with catalyst loading typically at 0.1–0.3% by weight to control throughput and minimize side reactions
    • Ratio adjusted to account for specific solvent grade requirements (industrial vs. pharmaceutical grade)

    Downstream process integration

    • Pumped into high-pressure hydrogenation units; n-Butanol is separated via fractional distillation and either sent directly to esterification for acetates or blended into solvent tanks

    Final product types

    • n-Butanol (solvent base)
    • Butyl acetate (ester solvent for paints)
    • Coating and ink formulations
    • Textile and leather processing aids

    4. Manufacture of Crop Protection Intermediates for Agrochemical Synthesis

    N-Butyraldehyde contributes to the synthesis of herbicide and insecticide intermediates through aldol-type condensation and acylation processes in agrochemical facilities. Quality monitoring focuses on maintaining trace impurity profiles and minimizing unreacted aldehydes, following guidelines for downstream safe handling and environmental release.

    Industry compliance standards

    • FAO/WHO specifications for pesticide technical concentrates
    • GB 4839-2009 Technical grade agrochemical standards in China
    • ISO 9001:2015 for process quality tracking
    • Chemical Facility Anti-Terrorism Standards (CFATS) for precursor chemicals in select jurisdictions

    Typical usage ratio

    • Batch syntheses use 1.0 equivalent N-Butyraldehyde to 1.2–1.5 equivalents nitrogen donor or active halide, customized as per targeted intermediate (e.g., butyl-derived thioacetates or aldehyde-based oximes)
    • Mixture ratios controlled to contain residual reactants below 0.2% in final intermediate

    Downstream process integration

    • Reacted in agitated, temperature-controlled vessels prior to further functional group addition or ring closure, before final product work-up and formulation into bulk agrochemical intermediates

    Final product types

    • Chloroacetyl butyraldehyde derivatives (herbicide intermediates)
    • Butylthioacetic acid esters and related pesticides
    • Crop protection compound APIs for technical concentrate blending
    • Bulk actives for downstream formulation plants

    5. Use in Synthesis of Specialty Flavors & Fragrance Intermediates

    Flavors and fragrance manufacturers employ N-Butyraldehyde for the creation of butyric esters and other aldehyde-based intermediates, favoring its reactivity for constructing fruity and green notes in food and personal care products. Stringent control over aldehyde purity, trace solvents, and byproduct levels supports compliance with global food safety and cosmetic ingredient standards.

    Industry compliance standards

    • FCC (Food Chemicals Codex) for food fragrance intermediates
    • IFRA Standards (International Fragrance Association) for ingredient use in perfumery
    • 21 CFR Part 172 (US FDA) permitting butyraldehyde derivatives as synthetic flavor substances
    • ISO 22716 (Cosmetic GMP) for personal care ingredient production

    Typical usage ratio

    • Flavors: 1 part N-Butyraldehyde to 1.05–1.2 parts alcohol or acid reactant (e.g., for n-butyl butyrate), with target aldehyde levels in finished esters below 0.1%
    • Ratios vary depending on intensity and volatility requirements for the end formulation

    Downstream process integration

    • Fed into esterification or acetalization reactors, followed by phase separation, purification, fractional distillation, and blending into compounded flavor or fragrance bases

    Final product types

    • n-Butyl butyrate (fruity flavorant)
    • Butyric acid esters
    • Aldehyde blends for food applications
    • Perfume ingredient intermediates

    6. Precursor for Alcohol-Based Lubricant Additives

    Synthetic lubricant manufacturers convert N-Butyraldehyde to alcohol derivatives, which undergo further reactions to produce lubricity agents and anti-wear additives. Producers focus on achieving consistent molecular weight distribution and chemical stability for additive integration into high-stress lubricant environments.

    Industry compliance standards

    • ASTM D4485 for automotive lubricant formulations
    • API SN/CF and ACEA standards for engine oil components
    • ISO/TS 16949 for additive manufacturing traceability
    • Lubrizol performance protocols for component validation

    Typical usage ratio

    • 1 equivalent N-Butyraldehyde hydrogenated to form n-Butanol, with subsequent alkoxylation steps using 5–15 equivalents ethylene oxide per butanol equivalent, depending on targeted performance index
    • In finished lubricant packages: alcohol-derived additives typically constitute 0.5–4% by weight

    Downstream process integration

    • Processed in multi-stage reactors, passed through fixed-bed or trickle-flow reactors, with continuous distillation to yield base alcohols and final blending into additive concentrates

    Final product types

    • Polyalkylene glycol (PAG) lubricants
    • Synthetic engine oil additives
    • Anti-wear and friction modifier components for industrial greases
    • Hydraulic fluid additive bases
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    Certification & Compliance
    More Introduction

    N-Butyraldehyde: Delivering Clean Performance and Reliable Results

    Experience Earned Through the Lab and on the Factory Floor

    Years of practice have taught us that a successful production run depends on the real strengths of core chemicals—not just paperwork specs, but purity, consistency, and trust between every team handling the material. N-Butyraldehyde holds a steady spot in our production schedules, not only because it’s essential for downstream chemistries, but also because customers have come to rely on how we make it. This isn’t a commodity we toss into a catalog to pad inventory. We’ve optimized every reactor, fine-tuned every distillation, and learned how to answer questions about solvent inclusion, byproduct minimization, and shipment conditions—never dodging the hard conversations with formulators or line operators. The stories from our pilot-scale testing matter; small issues become big headaches if overlooked, whether it’s a hint of unwanted odor or trouble downstream caused by trace contaminants.

    Our Model of N-Butyraldehyde—Why Purity Matters

    N-Butyraldehyde, also known as butanal, doesn’t forgive shortcuts. Any flaw creeps up through downstream applications—especially in sensitive plastics or specialty resins. We maintain assay levels above 99.5% by our direct synthesis methods, cutting the time between production and stabilization. Pickup points for moisture and peroxides are built into our daily QA routine so no shipment includes off-spec product. Small changes in purity always generate questions from R&D customers. They remember issues from co-monomer runs or changes in oxo processes before our involvement. We listen. Engineers don’t want surprises halfway through an acrylic acid campaign or amid a push to boost lube oil additives.

    Specifications Shaped by Real Factory Environments

    From our perspective, numbers on a technical sheet gain meaning when they solve problems in tanks, reactors, and final blends. We monitor water by Karl Fischer titration and check color with APHA measurements. Finished butyraldehyde leaves our plant clear, free of visible particulates or haze. Aldehyde content regularly tests above 99.5%. Methanol and higher aldehydes remain tightly controlled—it took years to reach these targets through process tweaks and feedback with end users. After feedback from plasticizer manufacturers, we reduced certain residuals that caused off-colors or reactive hot-points in their esterification systems. Lot-to-lot consistency has built customer loyalty, making us the default source for several large multinational resin companies who value reliability over rock-bottom pricing.

    How End Users Apply Our N-Butyraldehyde

    N-Butyraldehyde plays a strategic role in several key chemical families. It’s a backbone for butanol production using the oxo process—our customers produce n-butanol and isobutanol for plasticizers, coatings, and adhesives. Other teams draw on it as an intermediate in the synthesis of 2-ethylhexanol, a step that ripples through plasticizer, rubber, and construction chemistries. Its aldehyde functionality drives the production of specialty flavorants and certain high-performance surfactants. A few high-purity customers demand tight analytical support so their pharmaceutical intermediates or specialty agrochemicals start from a material proven in the field, not just in marketing claims.

    Beyond basic commodity sales, years of technical troubleshooting shaped how we package and document outbound butyraldehyde. We treat trace impurity questions seriously—analytical staff keep retention samples and logs matched to every batch code. Some customers prefer stabilizer-free systems; others need antioxidant additions dialed to their process. We ship in stainless tankers, drums, and ISO containers, matching each to downstream requirements so operators don’t fight throughput limits or loss of product quality in transit.

    N-Butyraldehyde Compared with Common Alternatives

    A recurring question from purchasing teams is, “Why not use isobutyraldehyde?” Or, “Can we substitute another C4 aldehyde without consequences?” Experience has shown that the straight-chain structure of N-Butyraldehyde delivers the best results for certain processes—especially those requiring even reactivity, clear phase separation, or lower byproduct formation during downstream oxidation and condensation. Isobutyraldehyde, with its branched chain, acts differently in polymerizations and can stimulate more side-products, especially in resin and alkyd systems.

    N-Butyraldehyde also steps ahead of propionaldehyde and valeraldehyde when customers need a balance between volatility and reactivity. Its odor profile is cleaner and less aggressive than the closely related crotonaldehyde, which many operators avoid for worker comfort and safety. We’ve supported conversion work with both older and emerging surfactant producers—time and again, they return to N-Butyraldehyde for ease of handling, predictable reactivity, and a portfolio of established literature references supporting end-use approvals.

    Some manufacturers have tried to cut costs by blending in cheaper aldehydes. Our own data shows this often leads to color drift, inferior yield, or regulatory questions down the line. The right tool for the job really matters when magnified by a thousand tons throughputs. Cheaper options exist, but trouble with off-odors, worsened stability in plastics, or hiccups at distribution force most to switch back.

    Quality Is Our Everyday Conversation

    Every team member who manages our butyraldehyde production knows quality isn’t a document to be filed—it’s daily lived reality. Incoming raw materials trace back to known sources, with each truckload checked for compliance and consistency. Operators making every batch rely on regular feedback from truck drivers, QA staff, and key customers. When something falls outside our house spec during pilot runs or regular manufacturing, we catch it early.

    Analytical staff walk the fine line between rapid throughput and detection of subtle defects. A seemingly insignificant trace of water or higher aldehydes can ruin reactions or prompt customer complaints after final goods leave our customer’s premises. Line managers run routine GC, HPLC, and wet lab titrations to filter out any nonconforming lots—then we conduct spot audits on samples held from the previous month’s production. All this reduces variables for formulators and means fewer panicked phone calls about tank failures or discolored final blends.

    Listening to Feedstock Feedback and Evolving with Partners

    Open dialogue with longtime buyers built our success. Teams in large multi-site companies, as well as smaller specialty houses, send us requests to optimize or tweak production—sometimes to reduce byproducts, other times to tune reactivity or tailor the product for emerging green chemistry requirements. We’ve responded by updating feedstock streams, keeping side reactions in check, and investing in in-line analytics so each shipment matches high purity demands.

    Our own engineers share lessons learned so the next campaign improves on the last. We know exactly how minor impurities or changes in temperature profiles during delivery make a downstream difference. Customer audits often bring up minute points like tank material compatibility, micro-leakage risk, or paperwork for regulatory clearances. We supply answers backed by firsthand data, not guesswork or hand-waving. Practiced hands on the controls mean each batch meets or exceeds what formulators expect—no matter if it’s headed to a continent away or just the next city over.

    Aligning with Evolving Regulatory and Sustainability Standards

    Markets and government standards have changed. We adapted by investing in new environmental controls at the plant site. Our production liners prevent releases, and our waste gas scrubbers meet the latest emissions requirements. To stay current with region-specific documentation, we maintain updated Safety Data Sheets and transport paperwork in requested languages. Some customers work on voluntary greener chemistry compliance; we provide both support and certification as needed in line with new initiatives. Stewardship of the chemical—covering the whole journey from factory exit to end use—reduces problems for everyone. This approach shapes newly launched grades and the modifications we make to the purification train, always considering community, worker, and customer safety.

    Keeping Inventory and Delivery Honest

    Every plant operator feels pressure from inconsistent delivery. We learned this firsthand during tight market periods and long shipping routes. Our logistics team works hand-in-glove with production, using tracked orders and historical shipping data so supply interruptions stay rare. Storage tanks are maintained to keep the product fresh and avoid contamination. Onsite quality teams retain samples after each lot leaves, enabling immediate troubleshooting if any customer experiences an issue. We build trust batch by batch, sending field staff to help resolve unloading questions and answer troubleshooting requests—never leaving issues to accumulate or get lost in an inbox.

    Supporting Innovation Together

    Our approach is grounded in sharing hard-won experience. Recently, an R&D customer in the niche flavor & fragrance space struggled with inconsistent output from a competitor’s supply. Our technical staff visited the facility and traced the problem back to small but repeatable variance in aldehyde purity. We shared our COA and provided additional documentation for the downstream authority, then supplied a test batch. After switching, the customer’s product yield and scent profile stabilized, unlocking new catalog additions for their marketing team. Through open dialogue, new applications have emerged—coatings with tailored flow characteristics and environmentally friendlier solvents for specialty adhesives, for instance. We actively partner in application testing, supporting customers to achieve reliable scale-up, especially in processes that previously depended on more hazardous or less predictable intermediates.

    Production Capacity, Investment, and Growth

    We prove reliability not just through words, but with real investments. In the last decade, we expanded our N-Butyraldehyde unit twice based on demand signals from the market and joint planning with major partners. Upgrades involved closed-system reactors, automated process safety interlocks, and digital batch tracing. These investments grew out of our direct conversations with operations and research managers who voiced real concerns: uptime, sustainability, and end-user satisfaction. When doubts arise about the ability to fulfill long contracts, our track record shows we have delivered year after year—even during periods of global feedstock volatility or export disruption.

    Learning from Problems—And Pushing for Solutions

    Glitches happen in chemical manufacturing. We see it as a chance to improve. Batch excursions flag weak points in upstream feed or downstream purification—so we investigate, document, and fix the source. Our continuous improvement meetings include team members from production, quality, and technical support. They trace patterns over time, learning from each deviation, and use these lessons to update both internal standards and external customer support documents.

    Products like N-Butyraldehyde, used across a web of industries, can’t succeed long-term if manufacturers hide problems or refuse to adapt to shifting user needs. We stay ahead by anticipating bottlenecks, investing in backup feedstock sources, and collaborating with customers to validate solutions in real world environments. The result is a product fully supported by practical knowledge and a willingness to confront challenges head-on.

    Trust Earned with Every Shipment

    End-users need more than just what’s written on paper. From process technicians pulling samples at midnight to R&D chemists scaling new molecules, we partner with customers every step. Our N-Butyraldehyde isn’t an off-the-shelf add-on. It’s backed by experience, continuous attention to detail, and a commitment to real-world problem-solving. Industry today demands more transparency, tighter tolerances, sustained performance, and shared accountability. We step into these expectations by learning from both internal mistakes and honest customer feedback, improving with each campaign. By supporting hands-on chemistry at every level, we deliver more than a building block—we provide a partnership that supports growth, safety, and innovation from the factory floor to the final application.