| Names | |
|---|---|
| Preferred IUPAC name | Butanal |
| Other names | Butanal Butyric aldehyde |
| Pronunciation | /ɛnˌbjuːˈtɜːr.æl.dɪ.haɪd/ |
| Identifiers | |
| CAS Number | 123-72-8 |
| Beilstein Reference | 1855055 |
| ChEBI | CHEBI:44783 |
| ChEMBL | CHEMBL15360 |
| ChemSpider | 7282 |
| DrugBank | DB02131 |
| ECHA InfoCard | 03d85e55-df05-4a0a-a4c8-708a49c61b3d |
| EC Number | 200-836-8 |
| Gmelin Reference | 23020 |
| KEGG | C06141 |
| MeSH | D001432 |
| PubChem CID | BUT: BUT: "BUT: BUT: BUT: BUT: BUT: BUT: BUT: BUT: "264 |
| RTECS number | EO1575000 |
| UNII | K2L3W1169R |
| UN number | UN1129 |
| Properties | |
| Chemical formula | C4H8O |
| Molar mass | 72.11 g/mol |
| Appearance | Colorless liquid with a pungent odor |
| Odor | Pungent |
| Density | 0.801 g/cm3 at 20 °C |
| Solubility in water | Moderate (7.3 g/100 mL at 20 °C) |
| log P | 0.68 |
| Vapor pressure | 13.7 kPa (20 °C) |
| Acidity (pKa) | 13.53 |
| Basicity (pKb) | 13.6 |
| Magnetic susceptibility (χ) | -53.5×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.378 |
| Viscosity | 0.716 mPa·s (25°C) |
| Dipole moment | 2.72 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 254.7 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -237.5 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -2261 kJ·mol⁻¹ |
| Pharmacology | |
| ATC code | There is no ATC code assigned to n-Butyraldehyde. |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02, GHS07, GHS08 |
| Signal word | Danger |
| Hazard statements | H226, H319, H332, H335 |
| Precautionary statements | P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P310, P303+P361+P353, P304+P340, P305+P351+P338, P312, P330, P370+P378, P403+P235, P405, P501 |
| NFPA 704 (fire diamond) | NFPA 704: 2-3-0 |
| Flash point | -12 °C |
| Autoignition temperature | 183 °C |
| Explosive limits | 1.4% - 11.2% |
| Lethal dose or concentration | LD50 (oral, rat): 2,480 mg/kg |
| LD50 (median dose) | LD50 (median dose): 2.5 g/kg (rat, oral) |
| NIOSH | WA0525000 |
| PEL (Permissible) | PEL (Permissible Exposure Limit) of n-Butyraldehyde: 50 ppm (150 mg/m³) |
| REL (Recommended) | n-Butyraldehyde, General Storage |
| IDLH (Immediate danger) | 200 ppm |
| Related compounds | |
| Related compounds | Butyric acid Crotonaldehyde n-Butanol Isobutyraldehyde Propionaldehyde |
| Product Name & IUPAC Name | n-Butyraldehyde; Butanal |
|---|---|
| Chemical Formula | C4H8O |
| Synonyms & Trade Names | Butanal, 1-Butanal, Butyral, Butyraldehyde, n-Butanal |
| CAS Number | 123-72-8 |
| HS Code & Customs Classification | 29121900 (Acyclic aldehydes without other oxygen function) |
n-Butyraldehyde falls under linear aliphatic aldehydes in our production campaigns. Choice of feedstock focuses on hydroformylation of propylene—directed by the required consistency between batches and impurity profile matching. Purity levels, water content, and trace alcohols differ markedly based on catalyst performance and downstream purification.
HS code allocation is dictated by both structural classification and intended trade route, not simply chemical nomenclature. In certain export destinations, customs authorities request explicit breakdown of aldehyde chain length and oxygen content, so production documents reflect precise molecular analytics, not just nominal product claims.
Downstream users focus on reactivity in aldol condensation, polyvinyl butyral synthesis, and as an intermediate in pharmaceutical actives. Applications place specific emphasis on volatility control, color stability, and low residual chloride from upstream catalysts, especially where color index and odor threshold are project-critical.
Product storage protocols emphasize the importance of low moisture ingress before shipment, but strategies for drum, IBC, or bulk depend on local climate, transit duration, and the customer’s fill-unload cycle. Drums used in tropical regions are often nitrogen-purged as an additional barrier against polymerization and peroxidation reactions.
Specification targets—such as available aldehyde concentration, acid content, and iron contamination—are customized by the intended synthesis step for each client. Production lines prioritize closed-system handling to limit formation of high-boiling impurities during rectification and maintain batch reproducibility. Quality control draws on both gas chromatography and trace metal analysis, adjusted to customer audit outcomes and regional regulatory standards.
In industrial environments, n-Butyraldehyde is encountered as a clear, colorless liquid with a strong, pungent odor reminiscent of aldehydes. The physical state remains stable under typical plant conditions. Its appearance must be monitored because discoloration or cloudiness signals contamination or polymerization. Melting, boiling, and flash points are reference values that guide safe operation, especially in bulk storage and shipping. These figures shift if there are impurities or blends involved. Density measurement is often part of in-process quality checks; changes in density readings can indicate batch irregularities or foreign material presence.
From the manufacturer's perspective, n-Butyraldehyde displays reactivity typical of short-chain aliphatic aldehydes. In air, it tends to oxidize or polymerize, particularly if exposed to sunlight or elevated temperatures. The rate of response depends on oxygen levels, trace catalyst residues from the synthesis route, or extended storage. Process control logic includes antioxidation measures or inert gas blanketing for high-purity product lines.
Solubility varies with water, alcohols, and organic solvents. In formulation environments, n-Butyraldehyde is only partially miscible with water. Full dissolution is achieved in a range of organic solvents, making it suitable as an intermediate in various reaction media. For laboratory and pilot-plant solution preparation, gradual addition and agitation prevent local overheating or concentration gradients that could foster side reactions or hazardous conditions.
| Property | Industrial Grade | High Purity Grade |
|---|---|---|
| Assay (n-Butyraldehyde) | Typical values depend on supplier and customer requirements | Defined by enhanced purity and lower impurity profile |
| Moisture Content | Grade-dependent, controlled according to application specifications | Tight limits for water-sensitive downstream chemistry |
| Color (APHA) | Monitored for process control | Strict criteria for optical and electronic industry customers |
The impurity profile is driven by synthesis route and purification steps. Common trace impurities include higher aldehydes, alcohols, acids, and residual catalyst fragments. These are quantified by gas chromatography or titration, as dictated by internal protocols and customer acceptance criteria. Batch-specific impurity limits and types reflect intended downstream use, such as in pharmaceuticals, flavors, or plasticizer production.
Routine analytical work employs gas chromatography, Karl Fischer titration, and visual color scales. Reference methods are adapted according to recognized industry standards and validated internally for method precision. Final batch release relies on a combination of laboratory data, analytical history, and customer specifications.
Propylene and synthesis gas provide the main feedstocks. Raw material selection considers consistent composition, impurity background, and dual sourcing for supply resilience. Catalyst sourcing follows risk-based supplier approval and batch qualification to avoid trace heavy metal contamination in the final product.
Most industrial production adopts the hydroformylation pathway, where propylene reacts with carbon monoxide and hydrogen under controlled pressure in the presence of rhodium or cobalt catalysts. The manufacturer’s role includes maintaining catalyst activity and selectivity, balancing reactor parameters for desired aldehyde chain length, and minimizing unwanted by-products.
Reactor control targets optimal temperature and pressure to drive yield while suppressing side reactions. Fractional distillation separates n-Butyraldehyde from higher and lower homologues. Advanced operations employ inert blanketing, oxygen monitoring, and on-line analyzers to maintain output quality. Purification steps are regularly reviewed to match downstream customer requirements, particularly where odorous or colored impurities would compromise end-use chemicals.
Each lot undergoes laboratory analysis guided by customer product grade, previous batch data, and contractual delivery standards. Release protocols integrate in-process control charts, impurity trend monitoring, and deviation investigation before authorizing shipment.
From an industrial chemist’s viewpoint, n-Butyraldehyde supports aldol condensation, hydrogenation, and oxidation. Reactivity control remains fundamental for batch-to-batch consistency, as minor temperature, catalyst, or moisture fluctuations push the formation of undesired products.
Catalyst selection influences selectivity in condensation or reduction. Reaction temperature and solvent choice depend on whether the end-use target is an alcohol, acid, or a specialty intermediate. Oxygen-sensitive pathways demand inert gas blanketing and closed reactor design.
n-Butyraldehyde serves as a feedstock for 2-ethylhexanol, n-butyric acid, and polyol families. Awareness of carryover impurities and minor components is critical, since trace by-products can impact color, odor, or performance in polymer additives, plasticizers, or pharmaceutical applications.
Strict temperature control, moisture exclusion, and avoidance of strong light extend shelf stability. Inert gas blanketing is routinely applied for bulk tank or drum storage to mitigate peroxidation. Storage guidelines adjust by local climate, site infrastructure, and product grade.
Mild steel tanks with epoxy coatings or compatible stainless steels resist corrosion and limit contamination. Polyethylene and lined drums serve small-scale or high-purity applications. Sealing integrity directly influences shelf life by restricting ingress of atmospheric moisture or oxygen.
Shelf life reflects storage integrity and initial purity. Degradation presents as a sour odor, visible yellowing, residue at container walls, or failed quality analysis for color and assay. Periodic inspection and spot-check analysis support inventory management and customer assurance.
n-Butyraldehyde generally qualifies as flammable with hazardous inhalation and skin exposure potential. Actual hazard class labeling varies by packaging configuration, concentration, and transport region.
Handling documentation and plant displays always reinforce proper PPE, explosive atmosphere control, and emergency containment steps. Risks include respiratory irritation, mucosal effects, and dermal sensitivity, especially in confined or unventilated processing areas.
Publicly available toxicological data describe irritant properties via inhalation, ingestion, and direct contact. Long-term occupational exposure is controlled through engineering controls, monitoring, and routine personnel health checks.
Operational exposure limits follow regional regulatory mandates and are enforced through continuous monitoring, ventilation, and PPE policies. Operator training and routine safety audits ensure rapid response in the event of spills, exposure, or process deviations.
Industrial-scale n-butyraldehyde plants operate via oxo synthesis, relying on stable access to propylene and synthesis gas. Manufacturing output is determined by feedstock supply, reactor throughput, and purification equipment configuration. Grade and purity impact rated plant capacity since additional distillation and purification steps for high-purity or specialty grades may lower net output available for shipment. Periods of raw material disruption or unplanned turnarounds introduce tightness in supply, especially for specialized grades or custom-packed lots.
Lead times for n-butyraldehyde depend on current production loads and customer specification requirements. Off-the-shelf industrial grades for bulk contract customers see faster turnarounds versus custom-packed or high-purity lots, which may require adjustments in production scheduling and added QA steps. Typical MOQs reflect storage and transportation logistics; larger lot sizes align with ISO tank or IBC unit capacities, subject to customer usage patterns and regulatory considerations for storage and shipping.
Bulk shipment through tank trucks, isotainers, and dedicated rail wagons is common for large-scale offtake in petrochemical applications. For downstream manufacturing or export markets with differentiated needs, packaging can be adjusted to include stainless drums, IBC totes, or custom-sealed containers, with secondary containment where local safety regulations or customer handling requirements dictate. Purity-sensitive or GMP-adjacent applications mandate stricter segregation and dedicated line-drum packaging.
Shipping terms often reflect customer location, regulatory environment, and logistics network stability. INCOTERMS selection—FOB, CFR, or DDP—can be structured around agreed risk transfer points, and dangerous goods classification governs transport documentation and carrier approval. Payment terms comply with established industry norms for bulk chemicals, contingent upon customer credit risk assessment and transaction size, with L/C, net terms, or prepayment depending on counterpart risk and historical relationship.
n-Butyraldehyde production costs track the market prices for propylene and synthesis gas (CO, H2). Propylene procurement conditions—spot versus contract—and supply chain reliability strongly influence cost structures. The energy market environment, hydrogen pricing, and utility rates further shift conversion cost. Utility shutdowns or force majeures at supplier plants introduce volatility. Feedstock price spikes, transportation disruptions, or changes in emissions pricing schemes drive short-term cost surges passed through contractually or spot pricing.
Prices are differentiated by grade, purity, packaging, and documentation requirements. High-purity grades or lots requiring multi-parameter QA release and traceability command higher unit prices due to lower yields and added reprocessing cycles. Packaging certified for food, pharma, or export use incurs extra validation and material cost, which is explained during contract negotiation. Volume discounts reflect economies of scale but may be reset in periods of constrained feedstock availability.
Base market quotes reference standard industrial grade in bulk, with incremental costs for higher purity, specialty certification (REACH, FDA, Kosher, Halal), and custom packaging. Downstream performance requirements—hydroxyaldehyde content, color, trace metals—dictate additional purification, raising unit cost. Certifications and compliance documentation for regulated markets are costed into sales programs depending on probing depth and audit cycle frequency.
n-Butyraldehyde is integrated within global oxo-alcohol value chains anchored by large producers in North America, Western Europe, Northeast Asia, and selected petrochemical hubs. Regional demand hinges on the coatings, plastics, and pharmaceutical intermediates sectors. China and India continue expanding capacity, but access to propylene balances and trade policy shifts create structural price differences across geographies.
US: Domestic production remains steady, but unplanned outages at Gulf Coast plants or shifts in propylene cracker output affect spot and contract balance. EU: Producers face stricter environmental compliance costs and feedstock market volatility tied to energy policy and carbon pricing. JP: Japanese manufacturers focus on added value from specialty and high-purity n-butyraldehyde; dependence on imported propylene inputs shapes cost trends. IN/CN: Expansive consumption from downstream derivatives (plasticizers, solvents) drive strong baseline demand. Domestic capacity increases in China have limited some imports but feedstock market swings and policy changes drive periodic pricing volatility.
Forward market consensus and manufacturing planning models indicate moderate price escalation through 2026, in line with projected feedstock cost trends and regulatory-driven operating expenditure increases. Persistent volatility in upstream energy and propylene supplies remain the greatest risk factor. Global logistics disruptions may continue to cause regional price spikes and temporarily decouple local prices from international benchmarks, particularly in Asia and Europe.
Price trend analysis draws from internal procurement benchmarks, public commodity indices (ICIS, ChemOrbis, Platts), and feedback from quarterly contract renegotiations with feedstock suppliers and major off-takers. Market outlooks integrate data from macroeconomic risk monitoring, government and trade data, and feedback from regulatory and industrial forums.
Recent quarters have seen increased volatility in propylene pricing, fueled by both planned maintenance and unplanned outages across key global crackers. Several feedstock suppliers report tighter allocations or revised contract structures, necessitating increased buffer inventory and risk-sharing with downstream customers. Logistics bottlenecks and port delays in multiple regions have extended effective lead times for both feedstocks and finished product in international trade flows.
Manufacturers adapting to evolving REACH and GHS regulations in the EU have invested in compliance systems, both for supply chain traceability and to satisfy downstream documentation requirements. Policy momentum toward carbon footprint reduction continues to shape procurement and process design choices. New certifications for export to emerging markets increasingly mirror or extend beyond traditional OECD regulatory frameworks, requiring ongoing review of packaging, labeling, and transport practices.
Quality control and production teams prioritize stable raw material sourcing, close monitoring of batch-to-batch consistency, and rapid adaptation to upstream supply changes. Multi-source procurement and hedging strategies buffer exposure to price and logistics risks. Continuous process improvements focus on reducing impurity generation and optimizing purification steps to manage compliance costs and customer audit requirements without compromising output. Internal risk management emphasizes agility in lead time commitment and transparent communication with key contract customers to prevent downstream disruption.
From the perspective of technical manufacturing, n-Butyraldehyde operates as a functional intermediate in multiple chemical value chains. Most demand clusters around plasticizer production, where it acts as a primary building block for alcohol synthesis such as n-butanol and 2-ethylhexanol. Formulators running resin or coatings plants often approach us to discuss its use in specialty aldehyde resins for improved finish and process stability.
Pharmaceutical synthesis routes rely on n-butyraldehyde for certain active pharmaceutical ingredient (API) precursors, usually dictated by regional monograph alignment or custom impurity profiles. Agrochemical developers frequently require tailored impurity limits, especially around total aldehydes and moisture, to ensure stable downstream reactions.
| Application | Manufacturing Grade Options | Typical Industrial Specification Focus |
|---|---|---|
| Plasticizer/alcohol synthesis (n-butanol, 2-EH) | General Industrial, Process Grade | Moisture content control, color (Pt-Co), low content of higher aldehydes. Manufacturers usually request maximum limits aligned with downstream process sensitivity. |
| Resins, coatings, lacquers | Technical/Aldehyde Grade, Low-Color Grade | Strict color and acidity levels. Resin performance ties directly to grade selection since some catalyst systems show sensitivity to trace acid or sulfur content. |
| Pharmaceutical / API synthesis | Custom, Pharma-Intermediate Grade | Impurity tracking is crucial—focus on organic byproducts and residual solvents, supported by release protocols that anticipate ICH Q3A/B guidelines. |
| Agrochemicals (pesticide intermediates & actives) | Technical/Agro Grade | Tighter moisture and volatile limits; trace metals (iron, copper) reviewed based on downstream yield and stability requirements. Supplies for export might demand region-specific residual solvent certifications. |
Production teams start discussion by clarifying the end-use. Not all grades work across all reactions. Direct dialogue determines whether your route focuses on downstream alcohol, resin, API, or crop protection chemistry.
Compliance obligations depend on region and market. Material destined for pharma or agrochemical intermediate use requires specification review against relevant national or international monographs. Export contracts often include additional solvent or impurity reporting based on importing country mandates.
Purity targets link directly to downstream process stability and final product acceptance. Discuss with our QC and production management which impurity and physical property limits are critical for your process. Certain fields require documentation on individual organic contaminants; others emphasize total aldehyde content or trace metal levels. Consultation on achievable specification and lot-release data precedes any bulk production.
Technical discussions take volume-commitment and storage logistics into account. Bulk railcar, ISO containers, and drum shipments each call for different batch and lot-release strategies. Large, stable campaigns allow for tighter lot consistency while specialty requirements receive small-lot, closely tracked production batches.
Validation trials involve real-process sampling—technical service manages these based on ongoing production lots available for dispatch. Customers can request additional quality characterization such as organoleptic, chromatographic, or specialized contaminant testing, depending on final use-case. Performance feedback from these trials often leads to locked or custom specifications for annual supply contracts.
As a primary producer of n-butyraldehyde with vertically integrated synthesis, our operations rely on compliance with industry-standard quality management systems. Continuous compliance with ISO 9001 supports the routine verification of our quality control programs, covering all aspects from raw material acceptance, in-process assessment, batch traceability, and customer-specific release documentation. Regulatory audits and third-party system checks reinforce documentation standards across production and laboratory functions.
For n-butyraldehyde, we maintain global and regionally required certification records based on customer end-use, such as documentation for compliance with REACH in the EU and TSCA inventory listing in North America. Certification alignment extends to food, pharmaceutical, or agrochemical supply only if both process train and release protocol comply with the required GMP or specialty standards. These product-specific certifications are strictly linked to the plant route, batch segregation protocol, and raw material origin control, which affect the downstream usability of our n-butyraldehyde for regulated industries.
The Quality Control department issues batch-level Certificates of Analysis reflecting test parameters agreed upon with each client. Typical reporting includes purity (grade-dependent), moisture content, aldehyde byproducts, and trace impurities arising from the synthesis route and raw material source. Retained batch samples support complaint investigations and trend analysis. All records adhere to client audit requirements and are available in English or local language as required by the procurement contract. Advanced documentation, such as stability reports or extended impurity profiles, are delivered case-by-case for specialty markets or regulatory dossiers. Release standards may evolve based on major shifts in regulatory or customer expectations, with product specifications reviewed with major accounts during annual supplier quality meetings.
Process engineering ensures ongoing production loads for n-butyraldehyde according to our plant’s core design capacity and demand planning. Plant-wide redundancy in critical production steps and utility integration reduces risk of shortfall for long-term contracts. Routine preventive maintenance and feedstock qualification support uninterrupted supply, even during market disruption events. For customers seeking flexible business cooperation, minimum order quantities and shipment batch sizes can be discussed based on planning window and route-specific batch sizes. Adjustment of delivery schedules, consignment stocks, and buffer inventory arrangements are available under annual blanket orders to sustain seamless integration into customer operations.
Production capacity is determined by reaction train throughput, downstream purification bottlenecks, and logistics interface. Multi-train capability and process intensification on key stripping and distillation steps sustain steady output even as order patterns fluctuate. Inventory holdings and rolling production windows provide lead time for urgent or high-volume orders when formal capacity reservations are in place. Volume supply commitments tie directly to contract terms, critical customer classifications, and forecast reliability. Supply risks, including feedstock interruption or unplanned plant events, are mitigated through alternative qualified production lines or partner toll manufacturing.
Sample requests are handled through our technical service team, who evaluate application context, targeted grade, and analytical requirements before approving dispatch. Standard small pack samples are derived from main commercial batches and include comprehensive QC documentation. Evaluation samples support customer trials across application segments and can, upon agreement, be tailored in specification or packed under inert conditions. The sample program helps new customers validate batch-to-batch consistency, impurity compatibility, and handling requirements before placing volume orders.
Long-term customer relationships often require flexibility in procurement, from variable order quantities to tailored packaging and just-in-time shipments. We support client needs through contractual frameworks that allow periodic call-offs, schedule changes, or delivery-point adjustments without penalty. Cooperative supply models extend to buffer stock agreements and collaborative demand forecasting. For strategic accounts, vendor-managed inventory or integrated logistics are available to simplify end-to-end operations. Downturn mitigation or volume surges are directly coordinated with supply chain, ensuring customer manufacturing lines avoid interruptions or stockouts, regardless of market volatility or plant schedule variance.
Production teams observe continued focus on improving the oxo process, emphasizing catalyst efficiency, selectivity, and control of byproduct formation. Shift-reducing technologies and continuous-flow reactor design rank high in current research labs, driven by demand for consistent quality and process uptime. Technical groups prioritize minimization of side-products such as isobutyraldehyde or heavier aldehydes, especially for applications with strict impurity constraints.
New downstream sectors, including specialty plasticizers, advanced coatings, and performance additives, pull n-Butyraldehyde into broader value chains. Market demand from acrylate and methacrylate intermediates affects design-in specifications, while biotechnology-driven projects investigate renewable feedstocks as part of circular supply models. Technical service feedback indicates tighter application-driven purity and odor control requirements in these high-value segments.
Manufacturing faces the persistent challenge of byproduct suppression and impurity management—especially during catalyst changes or transitions between grades. Sensor-based real-time analytics, now commonplace on control panels, draw from continuous sampling to lock down carbonyl distribution and volatile trace content according to downstream requirements. Initiatives in solvent-free purification and closed-system transfer highlight progress in operator safety and environmental controls. Process intensification trials, including alternative feed routes, seek robust cycle consistency across fluctuating raw material quality, with breakthroughs measured by reduction in cycle-end variability and easier system cleaning.
Feedstock cost pressures and global regulatory guidelines around VOCs and carbon emissions distinctly shape demand. Our internal scenario modeling projects stable-to-moderate growth, with uneven demand spikes aligned with shifts in the coatings, plastics, and fine chemicals sectors. Expansion into renewable n-Butyraldehyde and integration with regional supply chains will drive volume changes at a plant level, especially in Asia-Pacific and North America. Manufacturers assessing investment or expansion weigh volatility in propylene pricing, which remains the dominant input, and the evolving external mandate for greener chemicals in downstream portfolios.
Plant engineers follow advances in reactor internals, heat integration, and waste minimization to extract more value from existing assets. Exotherm management and pressure balance, once the main bottlenecks for stable operation, now see optimization through digital monitoring and predictive maintenance. Scale-up of catalytic systems—for both traditional and renewable feedstocks—directly targets reduced shutdown frequency and consistent batch-to-batch profile. Purification strategies, previously dominated by classic distillation, now incorporate membrane-assisted and hybrid techniques for grade-specific output, especially where trace odorants must stay below critical application thresholds.
Green chemistry principles gradually reshape raw material purchasing and effluent management. Sourcing teams evaluate biologically derived propylene and feedstocks from waste-to-value pathways when technically compatible with existing reactor infrastructure. Solvent reuse and closed-loop utilities reduce environmental footprint and interface directly with compliance protocols. For grades destined for food-contact, pharmaceutical, or sensitive polymer applications, non-target impurities and solvent residues guide the engineering of downstream purification, balancing throughput against the drive for minimized waste and energy use.
Our technical staff partners with customer process teams through direct plant-to-plant engagement. Consultation covers not only product grade selection but also includes in-depth discussion of process interactions, temperature sensitivity during blending, and compatibility questions raised by end-use formulations. Feedback loops between application engineers and internal production guide the design of special grades and tailored delivery solutions, especially for first-fill processes or transition runs.
Ongoing support addresses the full cycle from formulation trials to scale-up and troubleshooting. Application specialists visit customer facilities or arrange remote diagnostics to address reactivity, volatility, and interaction issues in complex multi-component systems. Where specific purity or volatility constraints impact downstream polymerization or modification, technical teams conduct in-situ sampling and recommend blending or purification adjustments. Guidance reflects long-term familiarity with legacy processes, while being grounded in batch data and application test feedback from relevant sectors like resins, coatings, and agrochemicals.
Commitment to after-sales extends beyond standard material replacement or quality dispute handling. Support encompasses trace-back investigations using stored batch records, impurity profile documentation, and root-cause analysis for any performance anomalies in the field. Technical service integrates with logistics and quality control so that customers receive proactive status updates during product transitions, process modifications, or regulatory reclassifications. For every delivered batch, internal release protocols ensure conformance with both our own criteria and customer-specified analysis, particularly where tailored grades require additional verification.
Manufacturing n-butyraldehyde at scale requires stable reaction control, precise separation, and vigilance in product handling from feedstock to final packaging. In our production facilities, continuous oxo synthesis runs under monitored pressure and temperature conditions. Quality control points span from raw material analysis through fractionation to final drumming. This hands-on approach reduces impurity carryover and allows for fast batch adjustments when industrial users need modifications in residue, color, or moisture content for downstream processes.
Commercial n-butyraldehyde serves as an essential intermediate in the production of plasticizers, alcohols, and specialty chemicals. In plasticizer manufacturing, its conversion into n-butanol and then to phthalates or adipates forms a cornerstone in the flexible PVC sector. Coatings and resins producers rely on this aldehyde to synthesize acrylates with predictable chain length and reactivity. Fine chemical plants require a consistent n-butyraldehyde supply to achieve the right selectivity in hydrogenation or aldol condensation reactions. Each sector values a predictable supply chain paired with robust technical backing.
Meeting industrial requirements starts at the reactor and ends at the loading dock. Every consignment of n-butyraldehyde undergoes multiple analytical checks, including GC for purity and color index readings. Purge intervals, catalyst management, and storage tank maintenance all contribute to limiting batch drift and odor reactivity. Our operational discipline keeps shipments within customer specifications and minimizes the risk of off-grade occurrences, which can interrupt large-scale manufacturing.
Customers order n-butyraldehyde in drums, IBCs, tank trucks, or isotanks. Our packaging team manages these filling lines in-house, using dedicated transfer hoses and nitrogen purging to limit oxidation. Outsiders do not repack or relabel material, and each outbound unit tracks back to a defined production lot. Integration with licensed logistics partners enables management of high-volume and just-in-time deliveries, ensuring continuity for forward assembly lines.
Industrial operations often involve variables that go beyond product purity—such as resin performance, catalyst sensitivity, or environmental requirements. Our laboratory and technical services staff provide customers with troubleshooting on reactivity or feedstock compatibility. Customers benefit from batch records, process adjustment guidance, and incident investigation. By sharing plant-scale learnings, we help reduce downtime and keep conversion rates consistent.
Production sites, procurement groups, and distribution managers value direct access to reliable product. Reduced middleman markup, direct data sharing, and predictable scheduling all protect margins and reduce business risk. With long-term partnerships, users lock in volume, participate in periodic technical reviews, and co-develop logistics solutions that limit inventory costs. This factory-direct model removes uncertainty, letting purchasing and planning teams focus on process improvements rather than raw material variability.
Producing n-butyraldehyde demands precise control over raw materials and operating conditions. As manufacturers, we recognize its value as a clear, slightly soluble liquid with a sharp odor. Its chemical structure, CH3CH2CH2CHO, provides a reactive aldehyde group at one end and a short-chain hydrocarbon backbone, essential for practical reactivity in downstream processing. This molecular balance makes it a popular intermediate in oxo synthesis and various organic transformations.
During storage and transfer, n-butyraldehyde needs proper ventilation and containment. Even small exposure can irritate the eyes and skin, so we focus on developing safe packaging and sealed deliveries to minimize risk. Our containers, usually made from mild steel or stainless steel, hold the material under nitrogen or an inert atmosphere to prevent oxidation, which can generate peroxides or degrade product quality.
In our facilities, n-butyraldehyde heads straight to the heart of chemical synthesis as a versatile building block. The bulk of our production supports the manufacture of 2-ethylhexanol—a critical precursor for plasticizers such as dioctyl phthalate (DOP). This route involves an aldol condensation followed by hydrogenation, processes we have refined over time to boost yield and reduce energy consumption. Every efficiency here means lower operational costs and better pricing power for our customers.
This molecule’s reactivity also opens doors to the synthesis of specialty chemicals. We route a portion of our capacity to the production of n-butanol. Through catalytic hydrogenation, n-butyraldehyde reacts cleanly toward n-butanol, a solvent required by paint, coating, and ink manufacturers. Our long-standing partnerships in these industries depend on the consistency and purity we can deliver.
Adhesives, resins, and pharmaceuticals all put n-butyraldehyde’s aldehyde group to use. Our customers in resin manufacturing use it in the production of polyvinyl butyral (PVB) resins, which find their way into laminated safety glass. The automotive and construction industries value toughness and clarity—qualities that start with the control we apply at the molecular level. Through careful distillation and in-house quality checks, we help our clients meet demanding safety and performance requirements.
Our process engineers track market shifts and adjust grades accordingly. As demand for synthetic lubricants and fragrance intermediates grows, we direct resources to custom blends and high-purity batches. Laboratory support is never far away; application development teams actively collaborate with new and existing customers to adapt n-butyraldehyde-based formulas for biodegradable plasticizers, eco-friendly solvents, and even agricultural chemicals.
As direct manufacturers, we realize that dependability stands just as tall as innovation. Every ton of n-butyraldehyde that leaves our facility reflects our investment in modern automation, strict hazard management, and logistics that align with international standards. We don’t approach this molecule as a commodity but as the entry point to custom chemical solutions. We can provide detailed technical data, application guidance, and tailored logistical support, whether customers need deliveries by tank truck or drum, or integration with downstream reaction units.
Responsible chemical production is not just about meeting the needs of today’s industrial users. Regulations and customer expectations shift toward lower emissions and lower-carbon processes. We respond by upgrading safety systems, optimizing plant emissions, and recycling process streams whenever possible. Continuous investment in process safety and sustainability keeps our operations efficient and future-ready.
Direct manufacturers bear a unique responsibility with n-Butyraldehyde supply. Our factory runs continuous processes designed for both efficiency and safety; this means we carefully align minimum order quantities (MOQs) to match our reactor batch sizes and logistics constraints. Adjusting our runs for every tiny lot would not only be inefficient, but also lead to unnecessary downtime or inconsistent quality. MOQs exist to avoid that. In our operation, the MOQ typically corresponds to a single bulk delivery unit—ordered most often in either bulk liquid tanks or professionally lined steel drums. By adhering to production batch sizes, we can uphold both purity and delivery speed.
Transport and storage are closely linked to MOQ. n-Butyraldehyde is sensitive to air and moisture, and smaller deliveries can risk higher exposure during transfers. Our own experience shows that full truckloads best preserve product integrity and provide more control over contamination risk. Smaller MOQs raise costs, forcing us to schedule specialty runs and exposing the product to more handling steps. We focus not only on chemical integrity, but also on practical safe packaging—helping customers avoid surprises during offloading or subsequent blending stages at their own facility.
We maintain a lean inventory system and work off made-to-demand schedules. n-Butyraldehyde, volatile and highly reactive, is not suited for long-term warehousing without dedicated temperature-controlled equipment. Quality starts on the production floor, so order lead times depend on our real-time plant loading, any reserve stock available, and regional transport capacity. Orders at or above the MOQ benefit from streamlined scheduling. For standard quantities, we can often achieve lead times in the range of several days to two weeks, but actual timing fluctuates based on upstream raw material supply, plant turnaround schedules, and regulatory shipping windows—especially for cross-border logistics. Emergency requests can bump against legal transport limitations or seasonal demand peaks, meaning longer potential waits.
Our technical team stays in direct contact with procurement specialists on the customer side, balancing firm commitments with updated production visibility. This transparency builds trust and helps customers plan maintenance shutdowns or ramp projects alongside our batch schedules. Regular blanket orders from established customers form the backbone of our factory timetable, maximizing efficiency and ensuring the n-Butyraldehyde arrives when needed.
Tight market windows highlight the value of direct dialogue. We encourage regular forecasting and early engagement, allowing us to sync production cycles with anticipated demand. Multi-month framework orders smooth out supply and avoid last-minute shocks during market upswings or feedstock disruptions. For customers with variable requirements, we recommend fixed order slots or expansion options, reducing risk and improving certainty for both sides.
Our factory also provides detailed logistics guidance—addressing everything from compatible tanker specs to customs documentation—so customers experience predictable product handover without costly delays. Manufacturers who invest in direct communication and operational planning ultimately drive better supply security for everyone in the chemical chain.
n-Butyraldehyde stands as a core building block in many chemical processes. Its low flash point and volatility require close attention from our operations and logistics teams. At our facilities, we oversee each stage from synthesis to final packaging, which gives us first-hand insight into both the regulatory context and the practical requirements for safe, compliant transport.
Regulators such as the US Department of Transportation, European ADR, and international conventions like the IMDG Code all recognize n-Butyraldehyde as a hazardous material. These agencies classify it as a Flammable Liquid—UN1129, hazard class 3. Regulations do not leave room for shortcuts. Proper labeling, hazard placarding, and documentation directly impact legal compliance and public safety. Our compliance officers regularly review consignment paperwork and ensure Safety Data Sheets follow the latest GHS standards. Consistency during audits and routine checks protects both public interests and our clients' peace of mind.
Our experienced filling and shipping teams use containers designed for flammable and corrosive substances. Stainless steel or coated steel drums featuring UN certification stamps withstand the product's chemical reactivity. We do not use repurposed or unapproved containers, as leaks or material incompatibility present controllable risks. For large consignments, we deploy ISO tanks following IMDG and ADR requirements, with regular pressure and leak integrity testing at our site before handover to shippers.
Exposure to heat increases evaporation and potential for hazardous vapors. In our warehouses and loading docks, we designate climate-moderated zones for n-Butyraldehyde storage. Road and sea shipments benefit from being kept in shaded or ventilated enclosures, avoiding proximity to ignition sources or oxidizers. We instruct logistics partners to avoid direct sunlight or extreme heat, reducing the potential for internal pressure buildup. Transport delays in summer months raise our vigilance; our logistics teams carefully monitor ambient conditions and adjust pick-up schedules as needed to mitigate unnecessary exposure.
Even with new packaging and careful handling, we treat spill prevention as an everyday priority. Our packing line operators receive recurrent training on leak detection, container closure checks, and secure palletizing. We provide well-marked absorbent materials and portable containment booms in our loading zones, so teams act swiftly if an accidental release occurs before shipment. This hands-on experience reduces risk both at our site and during transfer to transport partners.
Each n-Butyraldehyde consignment receives a unique tracking ID, linked to batch-level production and laboratory data. Our logistics support staff prepare detailed manifests and transport paperwork in direct alignment with customs and port authorities' requirements. Clear traceability supports smooth customs clearance and resolves any inspection queries without shipment delay.
Changing regulatory frameworks directly affect how we pack, label, and ship n-Butyraldehyde. Our regulatory team monitors updates and regularly collaborates with authorities and industry groups. Feedback from frontline shippers and logistics crews feeds back into our handling protocols. Our priority remains direct manufacturer-led oversight throughout the entire shipping cycle—ensuring product integrity, regulatory compliance, and industry-leading safety standards.
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales3@ascent-chem.com, +8615365186327 or WhatsApp: +8615365186327
