5-Pyrazolone-3-Methyl-1-Phenyl

    • Product Name: 5-Pyrazolone-3-Methyl-1-Phenyl
    • Chemical Name (IUPAC): 1-phenyl-3-methyl-1H-pyrazol-5(4H)-one
    • CAS No.: 89-25-8
    • Chemical Formula: C10H10N2O
    • Form/Physical State: Powder
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@boxa-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
    • CONTACT NOW
    Specifications

    HS Code

    289448

    Chemical Name 5-Pyrazolone-3-Methyl-1-Phenyl
    Molecular Formula C10H10N2O
    Molecular Weight 174.20 g/mol
    Cas Number 89-25-8
    Appearance Yellow crystalline powder
    Melting Point 133-135°C
    Solubility Water Slightly soluble
    Synonyms 3-Methyl-1-phenyl-5-pyrazolone
    Structure Pyrazolone ring with methyl at position 3, phenyl at position 1
    Pubchem Cid 68416

    As an accredited 5-Pyrazolone-3-Methyl-1-Phenyl factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 250g of 5-Pyrazolone-3-Methyl-1-Phenyl supplied in a sealed amber glass bottle with tamper-evident cap and clear labeling.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for 5-Pyrazolone-3-Methyl-1-Phenyl: safely packed in fiber drums or bags, maximizing container capacity, ensuring secure transport.
    Shipping 5-Pyrazolone-3-Methyl-1-Phenyl should be shipped in tightly sealed containers, away from light, moisture, and incompatible substances. Packages must comply with local and international chemical transport regulations. Ensure proper labeling and documentation. Handle with care to avoid breakage or leakage, and store at a stable temperature during transit.
    Storage 5-Pyrazolone-3-Methyl-1-Phenyl should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Avoid contact with incompatible materials such as strong oxidizers and acids. Store at room temperature and ensure that the area is equipped with appropriate spill containment and fire safety equipment.
    Shelf Life 5-Pyrazolone-3-Methyl-1-Phenyl has a shelf life of 2-3 years when stored in a cool, dry, and sealed container.
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    Certification & Compliance
    More Introduction

    5-Pyrazolone-3-Methyl-1-Phenyl: A Manufacturer’s Perspective

    Our Direct Commitment to Quality and Reliability

    Every batch of 5-Pyrazolone-3-Methyl-1-Phenyl that leaves our facility represents the combined experience of a team dedicated to chemical manufacturing. There is something about working directly with raw materials, transforming them step by step, that sets our approach apart from intermediaries or repackagers. We oversee everything from incoming starting materials to careful crystallization, ensuring that customers receive a consistent product each time. Manufacturing at scale, as we have learned through years of production, exposes every weak link, whether in raw material purity or temperature control, and that’s where expertise shows its value.

    Understanding 5-Pyrazolone-3-Methyl-1-Phenyl in Chemistry

    Chemists have long favored the 5-pyrazolone scaffold for its reactivity and versatility, and the 3-Methyl-1-Phenyl variant continues to draw interest for a number of reasons. As a manufacturer, we have observed firsthand how its stability in solid form and clean spectral profile simplify downstream applications. Operating a production line dedicated to this compound, we handle orders ranging from small research quantities up through multi-ton industrial runs, so we see the breadth of its use every day.

    Model, Specifications, and What Matters in Practice

    We often talk about product "grade," but that doesn’t mean much until you face real-world demands. In our experience, the majority of our customers working with 5-Pyrazolone-3-Methyl-1-Phenyl focus on HPLC purity above 99%. Water content, chloride levels, and heavy metal traces cannot be overlooked. Our material meets or exceeds high specification thresholds, and that comes from dozens of in-process checks, not from luck. Melting point, crystalline form, and residual solvent content get constant attention in our lab. None of this is “marketing speak”—if these details slip, downstream problems multiply, and nothing ruins a chemist’s week like unexplained side products due to off-spec input.

    Production Process: Lessons Learned the Hard Way

    Many only see the final white or pale yellow powder, but each lot reflects months, sometimes years, of process refinement. We draw our methyl and phenyl groups from verified suppliers and run condensation reactions under tightly controlled conditions. In the past, a slight variation in catalyst ratio or a deviation in cooling profile could force costly rework, even waste entire runs. We have built redundancy into our controls, running parallel analytical checks and fielding on-the-floor chemists ready to intervene before issues escape the production area. Our process avoids chlorinated solvents out of both practical and safety concerns, and we don’t cut corners when it comes to drying or filtration.

    Main Uses and Why End Users Choose This Molecule

    5-Pyrazolone-3-Methyl-1-Phenyl doesn’t float on global headlines, but those deeply engaged in pharmaceuticals, dye intermediates, and analytical research have strong opinions about it. This chemical forms an essential backbone in the synthesis of various pharmaceuticals, especially where a stable, responsive heterocycle is needed. In our work with pharmaceutical developers, we’ve seen it used as both an intermediate and a building block for more complex actives. Its structure allows for selective modifications, which gives medicinal chemists flexibility during late-stage development.

    In dyes, the story is a little different. We have supplied tons of material to colorant manufacturers, who value the compound’s ability to link with a wide range of aromatic systems. Manufacturers appreciate that our purification steps remove byproducts that could cause unpredictable color shifts. Researchers in academia and industry laboratories often request detailed spectral data with every batch, reflecting the level of scrutiny expected in today’s regulatory environment.

    How Does It Differ from Other Pyrazolone Derivatives?

    Many chemicals share similar names but react very differently in the field. We often get inquiries confusing 5-Pyrazolone-3-Methyl-1-Phenyl with unsubstituted pyrazolones or with other methylated positional isomers. We spend considerable time clarifying these differences for clients who depend on exact molecular structures for their synthesis work. The presence of the phenyl group at the 1-position and a methyl at the 3-position give this compound a distinct edge in terms of solubility and reactivity profile. These substituents also tend to boost stability, making handling and storage less troublesome than with more labile analogs. Years ago, before refining our drying process, we saw some batches from other makers prone to clumping or excessive browning, which traces back to structure-specific storage liabilities. We addressed this with modified packaging and moisture-protective processes.

    Some buyers look for cheaper alternatives, perhaps targeting 3-methylpyrazolone or other close relatives. Through side-by-side trials with partners, we have documented key differences in reaction rates, yields, and finished product purities. For example, minor changes in the pyrazolone ring’s substituents dramatically shift reactivity with diazonium salts—a critical consideration in dye or pharmaceutical applications. Product waste, low conversion, and unwanted isomerization all drive up the true cost of an inferior input. Maintaining the correct substitution pattern throughout production requires old-fashioned vigilance and regular investment in analytical instrumentation.

    Challenges Faced in Manufacturing at Scale

    Lab syntheses look clean and quick on paper, but reality rarely matches that image. Once we moved from 100-gram to multi-ton reactions, every trace impurity found a way to multiply. We invested in multi-stage distillation columns and larger centrifuges to improve our solid-liquid separations. Scale-up taught us humility and patience. Reaction exotherm control demanded upgraded jacketed reactors and extra monitoring. Purification became less about academic purity and more about balancing throughput with cost containment.

    We encountered bottlenecks with solvent recovery and product drying, leading us to install more energy-efficient rotary evaporation and vacuum dryers. Reproducibility became a daily goal, not a distant dream. If product liability cases with end users highlight anything, it’s that variability tends to hide in the details—an overlooked intermediate, a missed wash. Our lessons came at real cost, often in time and raw material. Factories like ours adapt or fall behind, and that truth has shaped our entire production philosophy.

    Meeting Regulatory Demands Through Evidence and Transparency

    Regulators have ramped up expectations for traceability, so we audit every lot going back to the barrel and batch. We maintain digital and paper records for QC samples, MSDS updates, and shipping manifests. The goal isn’t just to check boxes but to make it simple for downstream users—especially in pharma and specialty dyes—to validate the chain of responsibility in their own processes. Our customers regularly request not just the certificate of analysis, but supporting chromatograms, packing logs, and deviation reports, recognizing the higher risk in regulated domains.

    Every year brings a new layer of environmental scrutiny. As waste water and emissions standards shift, we proactively invest in new containment and recycling strategies. Our engineers consult directly with local authorities to remain in front of changing compliance deadlines. Through lab-scale tests, we refine scrubbing and neutralization systems to keep not just the letter but the spirit of environmental codes. Our biggest lesson: transparent operations benefit both the public and our long-term competitiveness.

    Technical Support Built on Real Manufacturing Experience

    Buyers routinely ask, "How will this material behave in my system?" Because we produce the compound ourselves, our technical advice goes beyond typical sales-talk. We routinely support customers in troubleshooting downstream crystallizations or analytical hurdles, relying on residual data from our own in-house control runs. Our chemists often field calls after hours, trading strategies for filtration, drying, and storage based on real facility conditions.

    Occasionally, new users run into unexpected solidification or want guidance on re-dissolution or grinding for process optimization. Our technical staff responds with actual process protocols derived from first-hand experience, not generalized statements from data sheets. Regular customer feedback often leads us to tweak a grinding or sieving step, benefiting all future batches. The relationship becomes a cycle: our real-world improvements circle back to enhance customer projects and our own quality targets.

    Differences Seen Between Our Product and Commodity Batches

    Some think a chemical is a chemical, but those who have worked under time pressure with a finicky batch know better. Many competitors rely on outsourced or pooled intermediates, which introduces variability we cannot tolerate. We avoid blending lots just to meet order sizes, instead producing unified batches with a tight traceable chain. One benefit is a sharper melting point and less batch-to-batch chromatic variation, which translates to less re-testing in demanding applications.

    Over the years, we have compared results from commodity samples with our own. Side-by-side NMR and HPLC runs uncover broader impurity peaks and wider melting ranges in “cost-effective” alternatives. Customers have reported improved yields and reduced purification costs when switching to our product, a difference that makes all the effort worth it. We consider technical dialogue as critical as product shipment—continuous feedback cycles help both sides work more efficiently and safely.

    Addressing Waste, Sustainability, and Future-Proofing

    Every manufacturing process creates waste streams. Through process mapping, we continually search for places to cut chemical use, recycle more solvents, and improve yield per kilogram of input. In the early days, waste disposal costs consumed a significant portion of operating expense, driving us to invest in on-site treatment units. Now, we recover and recycle upwards of 80% of process solvents, shrinking our environmental footprint and operating costs. Staff members receive ongoing training centered on practical chemistry and responsible stewardship, not just compliance.

    Innovation in green chemistry remains a real promise for producers. We engage with academic labs on alternative reagents and safer workups, testing low-emission alternatives under actual plant conditions. We have replaced certain legacy reagents based on collaboration and risk evaluation, recognizing that new generations of chemists and consumers expect more than minimum legal compliance. Market pressure challenges us, but we prefer to lead, reworking processes towards a circular economy.

    Trust by Direct Experience, Not Distance

    Our job begins with sourcing and ends with customer support, but every step centers on earning trust. Distance between manufacturer and end user can blur accountability, so we do everything possible to shorten that gap. We provide batch-level traceability, open visitor access to our plant for qualified partners, and reliable technical advice shaped by mistakes and improvements over years. Chemists in the lab and on the production floor all take pride in the integrity of our product and reputation.

    Over the past decade, direct relationships with research institutions and specialist manufacturers have taught us that trust grows best through open technical dialogue and clear evidence. Changing industry standards motivate us to keep refining both the process and our verification methods. Making chemicals responsibly means standing behind every bag, every drum, and every analytical number we share.

    Moving Forward: Meeting the Demands of Tomorrow

    The future always brings new synthesis challenges and stricter customer requirements. The scientists and engineers on our team keep a close eye on shifts in formulation trends, purity targets, and process safety. Our plant is configured to rapidly adjust to changes in global demand, so we constantly update process controls for adaptability as well as consistency.

    We see growing demand from advanced pharmaceutical research and specialty performance materials. No technology or automation replaces the value of hands-on experience—our seasoned chemists still spend time in the plant, sampling, troubleshooting, and training the next generation. Keeping this cycle of human engagement alive, while adopting smarter analytical and process tools, gives us the best shot at both meeting today’s demands and building a safer, more reliable future for 5-Pyrazolone-3-Methyl-1-Phenyl production.

    A Manufacturer’s Final Thought

    Manufacturing 5-Pyrazolone-3-Methyl-1-Phenyl well, batch after batch, means balancing scientific rigor, operational discipline, customer communication, and environmental care. Each challenge, from impurities to regulatory shifts, leads us to innovate and refine our processes. Working directly with this molecule every day, our team understands both the chemistry and the broader supply chain realities. That’s what gives our customers the confidence to push their own projects ahead, knowing that what’s behind each container is the product of practical experience and continuous accountability.