|
HS Code |
533243 |
| Cas Number | 4313-03-5 |
| Molecular Formula | C7H10O |
| Molecular Weight | 110.16 g/mol |
| Iupac Name | (2E,4E)-Hepta-2,4-dienal |
| Synonyms | tt-2,4-Heptadienal, (E,E)-2,4-Heptadienal |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 158-160 °C |
| Density | 0.857 g/mL at 25 °C |
| Refractive Index | 1.5180-1.5220 at 20 °C |
| Flash Point | 43 °C |
As an accredited Trans,Trans-2,4-Heptadienal factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Trans,Trans-2,4-Heptadienal is packaged in a 25 mL amber glass bottle with a secure screw cap, clearly labeled for laboratory use. |
| Shipping | Trans,Trans-2,4-Heptadienal should be shipped in tightly sealed containers, protected from light and moisture, and kept at a cool temperature. Handle as a flammable and irritant chemical, complying with relevant transport regulations. Ensure labeling with correct hazard identification, and use secondary containment to prevent leaks or spills during transit. |
| Storage | Trans,Trans-2,4-Heptadienal should be stored in a tightly sealed container, protected from light and moisture, and kept in a cool, dry, and well-ventilated area. It should be isolated from oxidizing agents and sources of ignition. Storage at low temperatures, such as in a refrigerator, is recommended to maintain stability and minimize degradation or volatilization. |
Applications of Trans,Trans-2,4-Heptadienal in Industrial ManufacturingTrans,Trans-2,4-Heptadienal is a high purity reactive flavor and aroma aldehyde valued by industrial customers for its characteristic fatty, green, and citrus-like notes. As an established manufacturer, we supply this material to downstream sectors focused on quality compliance, transparent ingredient management, and continuous production optimization. Below, we present core application segments where trans,trans-2,4-heptadienal delivers proven functional and olfactory performance to real-world manufacturing and formulation scenarios. 1. Food Flavor Compound Blending for Savory SeasoningsIn the food industry, compounders and formulators use this aldehyde to build authentic meat and fried flavor bases for seasonings and ready-to-eat products. The controlled addition supports nuanced, long-lasting top notes in processed poultry and snack blends, enhancing the finished taste profile for mass market and premium applications. The raw material’s stability and impact at low concentrations are valued for precise batch-to-batch control. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Fragrance Compound Synthesis for Consumer Fine FragrancesFragrance manufacturers incorporate the aldehyde to impart fresh green and aldehydic top notes in complex perfumes and colognes, especially those in the citrus, marine, and ozonic categories. The material’s enhanced volatility and diffusion characteristics contribute to initial impact and unique character, while its performance in solubilized alcohol bases satisfies stability requirements pivotal for mass production runs. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Natural Analog Flavoring in Plant-Based Protein ProductsAlternative protein manufacturers use the aldehyde to mimic the muscle-derived flavor signatures lacking in pea, soy, or fungal protein analogs. Precision-dose addition in flavor systems masks beany off-notes and creates more authentic cooked aroma during high-moisture extrusion or thermal processing, supporting premium vegan and flexitarian offerings in both Asian and Western food innovation pipelines. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Aroma Standard Manufacture for Analytical Testing and Sensory CalibrationReference material producers synthesize aroma standards utilizing the aldehyde’s well-characterized, reproducible olfactory properties for use in GC-Olfactometry, panel training, and instrument calibration protocols in the flavor and fragrance industry. Laboratories depend on pure, traceable supplies to guarantee consistency across sensory reference solutions and quantitative calibrants used in routine and regulatory quality control. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
|
Competitive Trans,Trans-2,4-Heptadienal prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: admin@sinochem-nanjing.com
Flexible payment, competitive price, premium service - Inquire now!
As a manufacturer directly handling the daily challenges of chemical synthesis, quality control, and customer feedback, we approach the production and use of Trans,Trans-2,4-Heptadienal with an appreciation built from hands-on experience. On any given day, conversations between our teams move from the mixing tanks to the scented glass vials used for testing, reflecting how integral this molecule has become across our production floors and in downstream applications.
This particular aldehyde, known for its distinct green, fatty aroma and reactive unsaturated structure, stands apart from its relatives in both behavior and value. Unlike the single-bonded saturated aldehydes—sometimes blunt and linear in effect—Trans,Trans-2,4-Heptadienal carries the complexity brought by two conjugated double bonds. Whether walking past our reactor or sampling end-state batches, there’s no mistaking its punchy, vibrant green note. Many in the fragrance or flavor fields have learned to immediately spot its character, but much of what sets it apart, rarely gets discussed outside the production line.
In-house manufacturing has brought to light a few facts any trader or third-party dealer would overlook. Trans,Trans-2,4-Heptadienal may look like a straightforward diene on the blackboard, but the reality is more nuanced. Handling the raw materials—heptanal, catalysts, solvents—requires a level of care to avoid trace impurities that can skew both odor and performance. At scale, every batch draws on learnings from the last. Our operators have seen, over dozens of cycles, that slight shifts in reaction temperature or residence time affect geometric isomer content. Analytical work checks for the trans,trans configuration, since off-spec cis isomer will dull the intended aroma or lend unwanted flavor notes.
Waste management is always close to mind. The spent solvents and minor byproducts need careful handling, as they affect not only cost but environmental footprint. Learning from years of hands-on batch-to-batch runs, we adjust protocols to trim down the off-flavor fragments and persistently chase cleaner conversions. Achieving high trans,trans ratio in the final product saves customers from re-work in their factories and helps us minimize both raw material costs and product loss.
Chemists often lump heptadienals with other doubly unsaturated aldehydes, but practical use tells a different story. On the sensory side, the dual conjugated bonds give Trans,Trans-2,4-Heptadienal a sharper cut-through than, say, citral or octadienal. Compared with saturated aldehydes, this molecule anchors greener, vegetable-like profiles while contributing subtle warmth in the background. We’ve seen flavorists come in, searching for “fresh cucumber” or “green bean” notes, and settle on this one after side-by-side evaluation. Unlike hexanal, which screams grass, or nonadienal, which leans fatty, Trans,Trans-2,4-Heptadienal stands at the intersection—capable of weaving green, waxy, and even nutty tones into an accord.
Downstream, product formulators for baked goods, snacks, and certain meat analog applications prize this aldehyde for its natural green lift. It plays a supportive, rather than starring, role at the right dosage. Years ago, some customers tried to replace it with cheaper green aldehydes, hoping for similarity, only to discover the loss of subtlety in their flavor matrix. No other linear seven-carbon aldehyde with two conjugated double bonds quite replicates the delicate proportion of freshness and body that this molecule delivers.
By working directly with clients—sometimes even joining them on pilot trials—our technical staff have seen Trans,Trans-2,4-Heptadienal improve more than one processing line. In food and flavor programs, this compound often arrives as a micro-dosed top note. It brightens vegetable, bean, green apple, and nut flavors when used judiciously. Mistakes in dosage quickly reveal a strong, almost spicy-green edge, which underscores the importance of both high-purity feedstock and exacting blending.
Perfumers gravitate toward it for the crisp freshness it lends to green floral bouquets and certain citrus top notes. Compared to Isovaleraldehyde or C9 aldehyde, the differences in diffusion, volatility, and skin-fixative qualities become apparent in real formulations. Trans,Trans-2,4-Heptadienal can freshen up the headspace of a scent without overpowering mid and base notes. Over years in the business, we’ve watched perfumery trends cycle through various “green” notes, but this aldehyde remains a mainstay for sharp, realistic fresh-cut impressions.
Industrial product formulators—folks making coatings, lubricants, or specialty plastics—occasionally request the product. Most use cases in these markets exploit the molecule’s reactive diene function, which means purity is non-negotiable. Any water or off-isomer can block the desired outcome in polymerizations or as a building block for more elaborate organics, and we tailor our purification process to these demands.
Handling and storing this aldehyde brings its share of headaches and learning opportunities. It won’t tolerate long exposure to air, light, or base. In our labs, we maintain a strict nitrogren-blanketed, low-temperature approach. After years of trial and error, we found that each extra hour exposed to warmth or oxygen shortens shelf life. Our containers use specific food-grade lining to prevent corrosion issues, and all outgoing shipments include documentation of handling precautions.
Some downstream users pressed us for pre-mixed solutions. Experience taught us to resist: the neat liquid holds its character longer than diluted versions, where even slight contamination sparks rapid degradation. Companies that skip these small details often end up with products that fail prematurely—some lessons are learned the hard way.
Trans,Trans-2,4-Heptadienal must clear a tangled landscape of safety and purity requirements, both locally and abroad. Our in-house regulatory specialist tracks constantly shifting standards for food contact, allergen labeling, and contamination cutoff points. There’s no shortcut around these: new batches undergo repeated GC-MS and HPLC screenings to confirm both isomeric configuration and the absense of hazardous impurities.
The aroma and flavor sector puts further constraints on trace components, especially for sensitive applications like natural flavors. Over the years, we have invested in upgraded analytics—not as an add-on, but as core production infrastructure. This keeps us on a stronger footing during audits or customer quality reviews. Failures to address these quality benchmarks impose huge downstream costs, as customers cannot afford to requalify an ingredient that doesn’t match the last shipment's signature.
Some formulas that pass muster at bench scale misbehave in real reactor runs. Our own scale-ups have been noisy, with transient hot spots or runaway exotherms leading to a drop in desired isomer. In resolving these, we keep tight logs—operator notes, input loads, temperature profiles. Improvements only stick when tested at both small and full-scale output. Sharing these lessons up and down our own production chain ensures that supplier and end user both stay on the same page.
The flavor and fragrance customers care about repeatability. The sharp “green bean” of batch one or the fresh “cut grass” of batch two set expectations in the factory downstream. Sourcing from a real manufacturer, they want to know every liter matches. Our plant crew confronts this reality with each campaign, tuning and tweaking parameters until the last vial mirrors the promise made to the buyer. We view small deviations as not just statistical curiosities, but cues to improve for the next cycle.
Manufacturing Trans,Trans-2,4-Heptadienal at scale exposes real cost drivers and vulnerabilities. The price of heptanal, energy for distillation, and the specialized glassware needed for isomer maintenance all dig into operating margins. Many newcomers to the sector underestimate the true cost of circumventing rework or loss on sour batches. Our own books show how minor cuts to preventive maintenance or analytical support add up to major downstream losses due to off-spec shipments or customer returns.
Vendor reliability on base chemicals sticks out as another challenge. Unanticipated delays—be it due to logistics or surging raw material prices—strain relationships with established buyers. We focus on backup supplier relationships not just as a contingency, but as everyday operating practice. Our production history provides a dozen examples where the ability to shift between suppliers meant uninterrupted output for clients on a critical launch. No distributor can match the security and responsiveness that comes from having raw material backup at the factory door.
Customers rarely see the months of trial work, failed runs, and iterative sampling that go into every kilo of Trans,Trans-2,4-Heptadienal we ship. Transparency has cemented our relationships—regular analytic disclosures, handling guides, and access to technical support from those running reactors, not just reading off a spec sheet. In complex projects, we provide samples with supporting data before a single commercial batch changes hands. End-use customers for flavors or high-end fragrances demand this visibility. Those truest to their craft want direct answers about process stability, batch-to-batch analytics, and shelf life evidence. We supply not only a product but a traceable operating history.
Over the years, we have continually fine-tuned both workplace safety and environmental practices. Our team emphasizes hands-on chemical hygiene. Given that aldehydes are reactive, exposure brings risks both to the operator and the process. We provide fit-for-purpose PPE, hands-on training, and emergency drills. Only in the trenches of comparing accident logs and reviewing near-misses do you catch the patterns—static buildup near filling stations, or container material fatigue from repeated recycling. With each incident, adjustments follow: improved venting, fresh signage, even seemingly small interventions like routine equipment cleaning. Batch integrity matters just as much as worker health, and real change comes from leading with demonstrated safety standards.
Environmental responsibility keeps growing as a part of our daily business. Process optimization isn’t just about cost or purity—it curves the arc of downstream environmental impact. By recapturing solvents, using closed-loop water management, and investing in higher-efficiency catalysis, we continue to reduce waste output. Real numbers from our emission logs show year-on-year reductions in hazardous waste tied to this product line. Through targeted investments in energy-efficient distillation, we've been able to trim both our CO₂ footprint and production costs. Not every fix shows impact on day one, but sustained effort delivers.
The strictly controlled release of chemical byproducts matters to regulators and communities alike. Our partnership with local waste management companies ensures regulatory compliance goes beyond minimums. Operators play a hands-on role in separating recoverable solvents and optimizing waste collection systems. We document—batch by batch—exact volumes of effluent, and use this data to argue for greener procurement in future campaigns. The long-term benefit isn’t just a cleaner plant, but a more secure supply chain for everybody who depends on us.
Much of our edge stems from steady investment in research and development. We challenge our chemists to reach for higher selectivity, improved reaction kinetics, and longer storage stability for Trans,Trans-2,4-Heptadienal. Beyond laboratory experiments, we run extended storage and compatibility trials, mimicking the actual shipping and warehouse conditions our clients face. This work sometimes surfaces new isomerization or polymerization issues that force us to revisit everything from catalyst choice to drum packaging.
Our R&D team regularly collaborates with customers piloting innovative food or perfumery launches. Incorporating real-life sample feedback lets us tailor both purity and delivery format. These co-development partnerships help us build solutions that stick—whether it’s for microencapsulation specialists, fine fragrance labs, or new entries to the alternative protein market. We approach every limitation as a jumping-off point for creative troubleshooting, not as a fixed barrier.
Serving both established multinationals and emerging niche players, our production teams have cultivated an ability to shift logistically and technically on short notice. One week may call for bulk tanker loading destined for large food facilities; another sees the careful bottling of analytic grade aliquots for a pioneering flavor house. Input from each order cycles back to improve the next run. Specific client preferences—sourcing, packing, transport—drive last-mile changes in our workflows. Flexibility, built on real-world feedback, multiplies trust in every transaction.
Looking forward, we see growth coming from new markets no one anticipated five years ago. Plant-based meat, functional beverages, and sustainable fragrances have all created a new landscape of demand that values transparency, high purity, and traceability. As food and fragrance innovation pushes boundaries, Trans,Trans-2,4-Heptadienal keeps finding novel roles. None of this has happened by luck. Years of investment in worker expertise, analytical rigor, and customer partnership keep us ahead. The product’s nuanced aroma, chemical reactivity, and cross-market appeal demand an approach that relies as much on adaptation as on tradition.
As a manufacturing team, our perspective shapes every aspect of Trans,Trans-2,4-Heptadienal’s story. We can’t opt out of responsibility for abnormalities, failings, or customer dissatisfaction. The connection between our process controls and the quality of the material in the user's hands drives continuous improvement. Years of accumulated technical knowhow let us solve bottlenecks, trim waste, and optimize cost in ways that only come from daily immersion in manufacturing. That depth of experience ensures the product serves end users—from flavorists to industrial chemists—as dependably as possible. For those who truly value consistent results, direct engagement with the manufacturer holds more value than intermediary marketing. Each advance, each fix, starts with knowledge forged in firsthand experience.