|
HS Code |
856358 |
| Chemical Name | Valeric Anhydride |
| Cas Number | 2081-22-5 |
| Molecular Formula | C10H18O3 |
| Molecular Weight | 186.25 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 218-220 °C |
| Melting Point | -54 °C |
| Density | 0.95 g/cm3 at 20 °C |
| Solubility In Water | Reacts with water |
| Odor | Pungent, acrid |
| Refractive Index | 1.415 (at 20 °C) |
| Flash Point | 99 °C (closed cup) |
As an accredited Valeric Anhydride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Valeric Anhydride, 500g: Supplied in a sealed amber glass bottle with tamper-evident cap, labeled with hazard and safety information. |
| Shipping | Valeric Anhydride should be shipped in tightly sealed, corrosion-resistant containers, clearly labeled and compliant with all relevant hazardous material regulations. It must be transported under cool, dry conditions, away from moisture, acids, and incompatible substances. Handle with caution to prevent leaks and spills. Follow all applicable international and local shipping guidelines. |
| Storage | Valeric anhydride should be stored in a cool, dry, and well-ventilated area, away from moisture, heat, and incompatible substances such as strong oxidizers and bases. It must be kept tightly sealed in corrosion-resistant containers, preferably glass or certain plastics. Proper labeling and secondary containment are recommended to prevent leaks or spills. Use only in designated chemical storage areas. |
| Purity 99%: Valeric Anhydride with 99% purity is used in pharmaceutical intermediate synthesis, where it ensures high yield and product consistency.Stability Temperature 50°C: Valeric Anhydride with a stability temperature of 50°C is applied in acylation reactions, where it provides reliable process control.Reactivity Index High: Valeric Anhydride with high reactivity index is used in esterification for fragrance production, where it enables fast reaction rates.Colorless Grade: Valeric Anhydride of colorless grade is utilized in fine chemical manufacturing, where it prevents color contamination of target compounds.Low Water Content (<0.1%): Valeric Anhydride with low water content (<0.1%) is employed in agrochemical formulations, where it minimizes hydrolysis and degradation.Density 0.93 g/cm³: Valeric Anhydride with a density of 0.93 g/cm³ is used in plasticizer synthesis, where it promotes uniform blending and material compatibility.Melting Point -40°C: Valeric Anhydride with a melting point of -40°C is used in low-temperature processing, where it maintains stability and handling ease.Molecular Weight 158.18 g/mol: Valeric Anhydride with a molecular weight of 158.18 g/mol is used in organic synthesis pathways, where precise mass balance is critical. |
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Decades behind a reactor show us what really works on the shop floor. Our experience manufacturing specialty anhydrides has taught us which technical parameters make a difference in daily plant operations, product yields, and consistency in downstream reactions. Valeric Anhydride, also known as Pentanoic Anhydride, sits among our core offerings. We produce this aliphatic anhydride with a focus on high purity and low moisture—a demand echoed by many fine chemicals producers who rely on predictable results batch after batch.
Out on the production line, recorded specs must actually reflect what arrives in the drum. Our batches typically achieve over 98% assay by GC, and water checks always stay at or below 0.1%. The product pours as a clear, colorless to pale yellow liquid, and users value its stable profile during both storage and use. We target a specific gravity around 0.92 at 25°C and a boiling point near 186°C, because those are the numbers that help formulators anticipate how Valeric Anhydride interacts with both diluents and actives in the mix.
Odor matters on the shop floor and during downstream neutralization, so we control aldehyde formation and decomposition during distillation. Technician feedback points out that a sharp, acidic smell slows productivity and creates extra work in ventilation. We suppress this by strictly controlling temperature and residence time during synthesis, protecting both the process and the team.
Many of our regular clients use Valeric Anhydride to acylate alcohols, amines, and phenols. Its acyl group shows moderate reactivity—a valuable feature for anyone seeking controlled, stepwise synthesis instead of runaway exotherms. Comparing it to acetic or propionic anhydride, valeric offers a longer-chain option for introducing branched functionalities in intermediates or pharmaceuticals. Chemists scaling up pilot projects have noted smoother isolation, especially in esters where downstream volatility or odor would otherwise require costly reworking.
Our colleagues in agricultural chemistry report that valeric derivatives lead to better compatibility profiles than lower-chain anhydrides in some herbicide formulations. We have watched rising demand in custom molecule development, as teams look for better agent release rates or targeted activity. In these cases, predictable specifications translate to fewer side products—a relief for both quality control and regulatory documentation.
We have plenty of stories about swapped drums and supply chain improvisations, especially where Valeric Anhydride gets compared to more common anhydrides like acetic, propionic, or butyric types. In practice, valeric’s five-carbon backbone introduces greater lipophilicity, which changes solubility and reaction rate in non-polar environments. Solvent selection and isolation often run more smoothly for those seeking to minimize byproducts in less polar solvents. Downstream users in the fragrance and flavor world sometimes select valeric-based acylations for unique olfactory notes, with fewer unwanted short-chain aromas lingering in the product.
Butyric anhydride, for instance, tends to impart a stronger, more persistent odor and can complicate handling in enclosed settings. We have seen significant improvements in workplace comfort and product acceptability when customers transition to our high-purity valeric material. Unlike phthalic or aromatic anhydrides, ours offers an aliphatic alternative with compatible reaction times for many standard esterification and amidation protocols. In polyesterification, our users find valeric provides better process points between flexibility and reactivity, especially when dealing with specialty polymers where too much rigidity causes brittleness.
From an operational standpoint, valeric’s boiling and freezing points allow for easier bulk storage. Many plants benefit from the lowered risk of solid blockages compared to higher-melting aromatic anhydrides. Our logistics crew regularly highlights that this ease translates to more reliable drum transfers on busy distribution days and limits unnecessary downtime.
We sometimes field questions about using valeric as a substitute for other acylating reagents. Solubility and reactivity considerations deserve a closer look in those cases. For instance, in solvolysis reactions or mixed-anhydride syntheses, slight shifts in reagent ratios can lead to noticeable effects in purity or conversion. Our support teams can share anecdotal feedback from operators who’ve fine-tuned these reactions over several runs, revealing a learning curve where valeric’s idiosyncrasies lead to better selectivity with some practice.
Valeric Anhydride appears in a broad spectrum of chemical manufacturing, but nowhere is its role as visible as in pharmaceutical intermediate synthesis, fragrance chemistry, and advanced materials. In pharma, our long-standing customers highlight how valeric anhydride imparts a unique valeryl moiety—indispensable in certain small-molecule APIs where precise acylation defines pharmacokinetics and solubility. We make regular deliveries to facilities where product traceability and batch consistency underpin their compliance with strict agency audits.
Fragrance houses look to valeric-based esters for notes that balance sweetness and earthiness, a signature that neither acetic nor butyric anhydrides quite capture. Our technical team sometimes visits customers onsite, sharing knowledge about minimizing side reactions that would otherwise spoil a delicate aroma balance. Downstream polymer scientists rely on our product’s purity when branching polyesters or creating dendritic structures—outcomes that depend on managing both molecular weight and functionalization extent.
In agrochemicals, valeric’s role shifts with the innovation cycles of each region. For crop protection and soil amendment projects, many developers use valeric-based derivatives to improve uptake and bioavailability. In these formulations, consistency and absence of trace acids reassures formulators who need to avoid plant phytotoxicity or unwanted off-target effects.
We also talk to coatings manufacturers and specialty resin formulators exploring valeric anhydride as an option for custom backbone construction. Sometimes direct substitution for more aggressive anhydrides proves problematic, but in the right hands, valeric opens up new product properties without introducing unnecessary hazards to the plant floor. The feedback loop with our customer partners accelerates process adaptation, saving time and reducing combined environmental footprints.
Experience in our own facilities has made us believers in continual process improvement. Valeric Anhydride, like most lower aliphatic anhydrides, reacts readily with water, giving off heat and vapors during hydrolysis. Our teams on the ground wear eye, face, and hand protection, deploy closed transfer lines, and never overlook the importance of dry nitrogen blanketing during storage. We routinely share our handling protocols with customers—recognizing that safe workplaces begin with robust training, not just paperwork.
Close control of drum heaters and ambient humidity keeps both quality and safety on track through seasonal swings. On more than one occasion, we’ve worked with plant engineers to optimize decanting and dosing, solving vapor generation or blockages before they threaten uptime. Technical support is always available on matters ranging from logistics to minor process tweaks, as we recognize the difference between what looks good on a spec sheet and what flows easily in daily operations.
Valeric Anhydride demands careful thought when it comes to emissions and waste. Our sustainability group participates alongside production in crafting closed-cycle processes. At our sites, started in part as a response to evolving standards, we recover vapors, minimize releases, and reclaim useable solvents. Customers working toward their own environmental goals ask for technical data and real operational results, and we accommodate requests for life cycle and emissions data wherever feasible.
Facilities using our product often run pilot projects focused on reducing hydrolysis waste and improving containment. Takeaway lessons from our own plant show that scaling up closed reactor charging and vent scrubbing dramatically reduces exposure points compared to open vessel operations. Customers using similar controls see not only better waste numbers but also less operator downtime due to odors or caustic cleaning. In one recent upgrade, we replaced legacy tank venting with multi-stage neutralization, slashing complaints from both local regulators and neighboring businesses.
Decades in batch and continuous production reinforce our conviction that direct communication with users leads to faster resolution of on-site issues. Whether adapting a process to recover byproduct valeric acid, or collaborating to find more benign cleaning agents, information exchange remains key. Waste audits, full-tank purges, and regular reevaluations of solvent compatibility all help contain risks. We support those putting in the hours on the plant floor because their feedback ultimately sharpens both our product and procedures.
We have learned firsthand that a reliable supply chain depends on honesty about production capacity and lead times. Our internal batch records track every drum from raw material sourcing to finished product shipment. This focus lets us avoid delays that ripple through our customers’ plants. Many buyers recall incidents where last-minute scramble for alternate materials led to significant losses. We have built buffer stocks for our major customers, weathering both storms and unexpected regulatory shifts that halt imports or mandate retesting.
Back in the early days, we operated with minimal reserve, learning tough lessons which today’s robust forecasting and inventory control prevent from repeating. Our production planners meet regularly with customer schedulers to fine-tune forecasts ahead of peak seasons or annual shutdowns. That trust runs both ways—major users have visited our site, walked the process line, and left with a sense of confidence that talking to the people actually pouring the drums delivers information no data sheet ever could.
We have encountered logistical challenges—everything from global resin shortages to unexpected shutdowns in upstream propionic acid facilities. Mitigating these events requires more than a purchasing department; it depends on having a technical team ready to adjust blend ratios or process conditions with minimal notice. Our shipping group finds that communicating possible disruptions in advance helps partners plan production lines, minimizing both downtime and material loss.
Innovation in Valeric Anhydride starts with user feedback and ends in tangible process improvements. Over the years, operators have reported issues with foaming or phase separation during scale-up. Guided by those conversations, we have phased in new distillation and condensation protocols to cut impurity carryover in fractionation. Product leaving our plant carries trace acid and aldehyde levels consistently below 0.05%, making a difference both in reaction predictability and in the number of purification steps needed after acylation.
In another case, customers formulating powder blends struggled with static buildup and uneven wetting. Collaboration with downstream application labs led us to develop drum linings and pour spouts appropriate for volatile, low-viscosity liquids. These details, while technically minor, often mark the difference between a process that works every shift and one that causes losses when conditions change.
Scientists in early-stage development have experimented with valeric in non-traditional acylations, including select runs with carbohydrate functionalization and modified starches. In these applications, fine-tuning reaction time and mixing protocol proved essential to prevent local overheating. Knowledge generated in these experimental threads often looped back to our production procedures, inspiring more measured ramp-up rates and incremental pH adjustment instead of catch-all reagent dumps. This iterative process creates relationships with research teams that extend beyond a single order.
Auditors and compliance managers depend on documentation, sure—but also the responsiveness of the suppliers standing behind those documents. We maintain product traceability for every production lot, with certificate of analysis data accessible to partners before the drums even ship. Changes in global chemical regulation affect both us and our users. We adapt by updating labels, safety instructions, and technical sheets in coordination with compliance professionals at customer sites.
Supply into regulated markets teaches us that batch-level lot tracking, security seals, and robust chain of custody reduces both risk and hassle. We have walked more than a few customers through surprise regulatory inspections, providing immediate access to manufacturing records, MSDS versions, and QA sampling documentation. Our shared interest in product stewardship keeps protocols current and clear—helping users avoid costly delays during new product launches or site audits.
Clients often share their own documentation standards or request supplemental test data. With our in-house analytics section and partnerships with accredited labs, we meet these needs promptly. We recognize that regulatory requirements shift, so we embed flexibility and openness into our paperwork processes, ensuring both our team and our partners get what they need on time.
The specialty chemicals space is evolving, and Valeric Anhydride sits at an intersection of fine, agricultural, and materials chemistry. Producers look to reduce carbon intensity, switch to bio-based feedstocks, and meet growing demand for customized molecules. Our process improvement team stays in touch with industry associations and academic partners, updating protocols for both greener syntheses and product recovery initiatives. Data from our process trials shows incremental gains in yield and byproduct minimization, helping us and our clients move toward shared sustainability goals.
With supply chains under pressure, both upstream and downstream disruptions test the readiness of every producer. We prepare our partners with redundancy in critical raw materials and dual-site processing arrangements for business continuity. Keeping communication open and technical support available at short notice helps mitigate risk, especially in years when regulatory or market swings stress the industry.
As new applications in advanced polymers, electronic chemicals, and medical intermediates emerge, we expect to see valeric’s value increase. Our R&D effort includes pilot runs in conjunction with customers aiming to expand what valeric-based anhydrides can do. Industry-wide priorities continue to shift, but our foundation in reliable supply, real-world technical know-how, and honest communication holds steady.
Years in the business show that trust, consistency, and accessibility matter as much as technical performance. Partners who buy direct get process transparency, immediate answers, and supplier investment in product success. We keep every feedback loop open, from the receiving dock to the R&D bench, because we know real-world improvements depend on timely, precise information and willingness to adapt.
From experience, the jump between lab trials and full-scale production often reveals gaps in information that only the producer can fill. Our technical teams have sat down with users to recalibrate dosing, fine-tune storage setups, and streamline process lines. Open conversations lead to faster resolution of both routine and unexpected hiccups. Over time, we’ve seen productivity rise and waste fall when teams communicate directly about what works and what needs adjustment.
No intermediate or raw material works in a vacuum. Valeric Anhydride, as produced by our team, stands on a track record of consistent quality, personalized support, and an ongoing commitment to safety and environmental stewardship. We see daily proof that these values translate into less downtime, fewer surprises, and better outcomes for everyone involved.