|
HS Code |
498513 |
| Cas Number | 67-51-6 |
| Molecular Formula | C5H8N2O |
| Molecular Weight | 112.13 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 109-113°C |
| Density | 1.08 g/cm³ |
| Solubility In Water | Slightly soluble |
| Purity | Typically ≥98% |
| Synonyms | 2,5-Dimethylpyrazol-3-one |
As an accredited 2,5-Dimethyl-3-pyrazolone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 100g amber glass bottle, sealed with a screw cap, labeled "2,5-Dimethyl-3-pyrazolone," including hazard, CAS, and batch information. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): 2,5-Dimethyl-3-pyrazolone is packed in 25 kg drums or bags, loaded 12–13 MT per 20′ container. |
| Shipping | 2,5-Dimethyl-3-pyrazolone should be shipped in tightly sealed containers, protected from moisture and heat. It must be clearly labeled and handled according to chemical safety guidelines. Ensure compliance with local and international transport regulations, including appropriate hazard classifications if applicable. Use appropriate packaging to prevent leaks during transit. |
| Storage | 2,5-Dimethyl-3-pyrazolone should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of heat and ignition. Keep away from strong oxidizing agents and direct sunlight. Ensure that appropriate labeling is maintained and avoid moisture exposure. Personal protective equipment should be used when handling the substance to prevent exposure. |
| Shelf Life | 2,5-Dimethyl-3-pyrazolone has a shelf life of around 2 years when stored tightly sealed, cool, dry, and protected from light. |
Competitive 2,5-Dimethyl-3-pyrazolone prices that fit your budget—flexible terms and customized quotes for every order.
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Manufacturing 2,5-Dimethyl-3-pyrazolone has taught us that not every chemical is created equal—even simple molecular changes produce differences that influence how well a compound performs. In our facility, each batch starts with carefully sourced raw materials, subject to strict incoming checks. That’s because this intermediate rarely leaves margin for error; small inconsistencies wreak havoc farther down the synthetic line, whether you’re in pharmaceutical research or pigment manufacture.
This fine, off-white solid—known in the lab by its molecular formula C5H8N2O—draws attention because of its reliable reactivity and clean melting profile. We keep our process parameters close, with in-line monitoring at critical stages. Each run outputs a consistent product, so clients don’t lose time retesting for every shipment.
Real product quality hides in the details. Our batches typically reach high purity, a claim we support with full chromatographic analyses. Moisture control and particle size affect not just appearance but also downstream solubility and reaction rates—two factors that can catch even seasoned users off guard. During scale-up, our process engineers fine-tuned time, temperature, and solvent systems, nudging the product toward a stable and reproducible specification.
Unwanted byproducts can emerge if precursors drift in supplier quality. Over years of close supplier audits and regular retesting, we weeded out sources that couldn’t meet real operational consistency. This discipline keeps the final product within narrow tolerances, especially for impurities like isomers and oxidative degradation products. Instead of chasing cosmetic purity, we anchor specs in what matters most for reactivity and handling, confirmed through applications in colorant synthesis, pharmaceuticals, and chemical auxiliary development.
Our experience lands heavily in dye and pigment industries, but we see a steady demand among pharmaceutical researchers and specialty additive makers. The compound’s carbonyl group at the third position opens straightforward synthetic routes for hydrazone formation and other coupling reactions. In our shop, those working on azo pigment intermediates use 2,5-Dimethyl-3-pyrazolone for its selective reactivity. Specific casework from a dye line showed that using this pyrazolone produced more vivid shades and less process foaming—a benefit that only shows up with consistent product.
Our pharmaceutical clients appreciate its role in chemical building blocks where selectivity and high conversion matter. A project involving antipyretic agent synthesis relied on our standard model, with laboratory feedback confirming minimal side product formation and no need to add more purification steps—a detail that reduces waste and speeds up new molecule development.
Plenty of customers ask why choose 2,5-Dimethyl-3-pyrazolone over regular 3-pyrazolone or the 3-methyl variant. The answer circles back to substitution effects. With both methyl groups at the 2 and 5 positions, this compound resists oxidative degradation more effectively under process conditions. Our manufacturing team found that for certain couplings, using this version at scale avoids the browning and tar formation sometimes seen with less substituted analogues. For operators tasked with cleaning reactors, that means less downtime and lower cleaning solvent consumption.
Model selection isn’t a purely academic question. For example, some pigment applications demand sharper shade transitions, where the 2,5-dimethyl structure offers more predictable behavior in the presence of various diazonium salts. On the other hand, standard 3-pyrazolone may work for routine reactions but falls short if exposure to air or minor pH swings leads to color drift or lower batch yields. Choosing the right isomer can close the gap between pilot success and plant-scale reliability. Our technical team often helps troubleshoot at this early stage, lending the benefit of years of batch campaign knowledge.
Over handling thousands of kilograms annually, we learned storage stability brings its own challenges. This is not a compound that likes moisture, so we store it in lined drums under dry nitrogen. Even minor lapses in packaging or storage humidity can lead to caking, color changes, or even partial decomposition. That’s not speculation—it’s the result of trace tests pulled from old drums not rotated on schedule. On the shipping dock, our team manually inspects seals and moisture indicators on every outgoing shipment. These routines shave off minor but nagging sources of customer complaint, from slurry formation to packaging dust.
On the process side, safe handling of the intermediate requires routine housekeeping to prevent dust explosions. Our team swept up after a minor incident—luckily no injuries—because a transfer line wasn’t properly grounded. Since then, every station uses strict grounding protocols, and we switched to antistatic gear. As a mid-sized manufacturer, we can address these details quickly, retraining crews without long bureaucracy. In the plant, these lessons translate to safer, cleaner runs.
Different clients bring different production quirks. One textile dye house reported inconsistent dispersion behavior in their aqueous lines. Our applications team dug in, tracing the issue to particle size distribution at the micron range. By modifying our milling step and adjusting drying times, we produced a version that no longer settled prematurely. Since then, several dye houses now rely on this model for high-throughput lines.
Another client, working on API intermediates, faced batch-to-batch purity swings from a previous supplier that forced them to extend their purification system time. After switching to our controlled product, their lab staff confirmed consistent crystallization behavior with sharper melting points—a key feature when scale-up time pressures collide with regulatory filing timelines.
We’ve also fielded calls about unusual odor or shades not matching reference batches. These discrepancies point back to raw materials or minor process tweaks, so we store retention samples from every lot. By maintaining clear traceability and customer open lines, our team tracks any deviation back to its source, adjusting process conditions and cleaning cycles as needed. For us, good production means not just meeting but repeating the standard every time. Clients have enough to worry about without treasuring every box in suspicion.
Over the past decade, regulatory scrutiny increased for many chemical building blocks, and 2,5-Dimethyl-3-pyrazolone faces its share of attention. We reformulated process steps to avoid hazardous solvents and minimized residual heavy metals in the product. Our investment in liquid chromatographs and trained chemists brings peace of mind to clients in tightly regulated markets. This isn’t a one-time shift—it’s an ongoing program. Every raw material batch carries a full audit history and certificate of analysis, while every step in the synthetic route is logged for traceability.
This ongoing drive does not just please regulators; it delivers commercial benefits, too. Waste stream reductions and cycle time compression translate to cost savings, which allow us to keep prices competitive, especially for customers under price pressure from their own markets. Clients who partner with us often share those gains along their own supply chains.
As global regulations bite down, we face the reality of stricter effluent standards and waste management protocols. Solvent recovery, energy reduction, and closed-loop systems are not luxury upgrades—they keep us in business. Our wastewater pre-treatment operates year-round, monitored not only for regulatory compliance but also for the environmental stewardship that matters in this industry. We moved early to replace some traditional chlorinated solvents with greener alternatives, after years of watching competitor recalls and environmental citations hurt market confidence.
We run regular internal audits, sometimes partnering with outside consultants, to validate every aspect of the plant. From stack air emissions to solid waste tracking, this discipline pays off. Buyers increasingly ask about environmental performance and seek documentation; we provide audited reports. This level of transparency builds relationships with long-term partners—especially those with end-users overseas facing tough customs or environmental import requirements.
Our analytical lab often finds itself at the frontline of troubleshooting. For some customers, trace impurities—unseen in regular QC—can upset a downstream reaction or tint a pigment the wrong way. Over dozens of customer investigations, we often saw issues caused by unintended co-crystallizations or micro-level solvent residues. Our response was a hybrid analytical protocol, combining standard GC/HPLC analysis with targeted spectroscopy for trace component fingerprints. This approach led to cleaner releases and a sharp drop in customer complaints about ‘off-batch’ lots.
We installed batch-level data management tied to every shipment, giving both internal teams and customers access to full release data. In regulated markets, especially pharmaceuticals and food-grade dyes, this backbone supports rapid product acceptance and easier regulatory review.
Chemicals don’t just travel down set industry routes; more clients use 2,5-Dimethyl-3-pyrazolone in new research or pilot processes. Supporting this trend means more small-batch requests, rapid feedback cycles, and occasional custom modifications—whether a tighter particle size or specific solvent-washed finish. Our R&D unit pivots to these requests by keeping pilot equipment ready and flexible. We can adjust synthetic steps or batch workups faster, cutting turnaround times and bringing new grades to trial within weeks, not months.
Occasionally, a developmental team uncovers a property or reaction pathway that standard specifications miss. Over the years, collaborative programs with university centers and industry consortia led to new process tweaks and application notes. This real-time feedback flows straight to our scale-up team, allowing for continuous improvement in both product and process. We refuse to treat even established products as ‘done’—there’s always room to improve in the hands of real users.
Handling a compound like 2,5-Dimethyl-3-pyrazolone responsibly means sticking to people-focused protocols. Operators in our plant go through regular safety training and practical refreshers. Emergency drills, chemical handling SOPs, and real-time incident reporting feed back to management weekly. Stories of incidents at competitor sites—ranging from minor injuries to larger scale accidents—keep the memory fresh and the procedures current. Manufacturing isn’t just about extracting yield; it’s about making sure everyone gets home at the end of a shift.
We watch the whole supply chain; from compliant transport partners to tested packaging. Downstream users often require targeted hazard communication, so we see safety data sheets and exposure scenarios as living documents. Stakeholders expect nothing less, especially as consumer-facing industries build detailed product safety documentation. Our regulatory affairs unit keeps pace with evolving standards, so not a single batch leaves without full compliance.
Clients who use 2,5-Dimethyl-3-pyrazolone hold us to high repeatability and reliability standards. They want a batch that works every time—not just the first time. Our investment in automation, data logging, and hands-on operator oversight comes from years of dealing with the headaches of compound variability. The relationship doesn’t end at the invoice; we support post-sale, helping troubleshoot, answer technical queries, and supply continuity plans during market disruptions or unforeseen supply constraints.
Openness and willingness to share information—from analytical data to incident root cause reports—define how we operate. Building trust comes from answering hard questions, not hiding issues. Long-term partners return because our track record shows responsiveness and learning, not excuses or delays.
Textbook answers rarely translate one-to-one on the plant floor. Every day we confront pressures from raw material cost swings, new regulatory targets, and customer requests that challenge us to do better. Each challenge met improves not just our product but how we serve those who truly depend on it in their day-to-day operation.
In real chemistry, shortcutting never goes unnoticed for long; substandard input or lax cGMP hits quickly. We invest up front so no one down the line pays the price later. That’s how 2,5-Dimethyl-3-pyrazolone in our plant grew from a specialty item to a backbone of several industry sectors. Our team’s pride rests not just in what we produce but how we get it right, every time, for each partner.