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4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone

    • Product Name 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone
    • Einecs 401-090-5
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    584754

    Name 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone
    Cas Number 2739-62-4
    Molecular Formula C6H6N2O4
    Molecular Weight 170.12
    Appearance Yellow to orange solid
    Melting Point 220-224 °C (decomposition)
    Solubility Slightly soluble in water
    Purity Typically ≥98%
    Synonyms 3-Nitro-4-hydroxy-6-methyl-2(1H)-pyridinone
    Smiles CC1=CC(=O)NC(=C1[N+](=O)[O-])O
    Inchi InChI=1S/C6H6N2O4/c1-3-2-4(9)7-6(12)5(3)8(10)11/h2,12H,1H3,(H,7,9)
    Storage Store at 2-8°C
    Hazard Statements May cause eye, skin, and respiratory irritation

    As an accredited 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 25-gram amber glass bottle with a white screw cap, labeled with chemical name, formula, hazard symbols, and handling instructions.
    Shipping **Shipping Description:** 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone should be shipped in tightly sealed, chemical-resistant containers, protected from moisture and light. Transport according to local and international regulations for hazardous materials. Use appropriate cushioning and secondary containment. Include proper labelling, Safety Data Sheet (SDS), and documentation for safe handling and emergency response during transit.
    Storage 4-Hydroxy-6-methyl-3-nitro-2-pyridone should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight, incompatible substances (such as strong acids, bases, and oxidizing agents), and sources of ignition. Ensure proper labeling and keep the container tightly closed to prevent contamination or moisture absorption. Store at room temperature unless otherwise specified by the manufacturer.
    Application of 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone

    Applications of 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone in Industrial Manufacturing

    4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone plays a specialized role in industrial synthesis across several advanced manufacturing verticals. As a direct manufacturer, we support diverse application processes where this pyridone derivative becomes essential for downstream innovation and reliable product performance.

    1. Synthesis of Agrochemical Intermediates

    Producers of crop protection actives incorporate 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone as a critical intermediate in the multi-step synthesis of selective herbicides and fungicide precursors. The nitropyridone scaffold introduces targeted biological activity for downstream molecule frameworks. Process engineers adjust input ratios according to batch scale and the specific chemistries involved in coupling or cyclization steps. Raw material handling must comply with regulated yield and impurity thresholds to uphold both environmental and worker safety in large-scale synthesis lines.

    Industry compliance standards

    • EU REACH Regulation (EC) No 1907/2006 compliance for raw input tracking
    • ISO 9001:2015 Quality Management System certification for batch release
    • Global Good Laboratory Practice (GLP) for analytical method validation
    • US EPA 40 CFR Part 158 for technical grade active ingredient requirements

    Typical usage ratio

    • 0.5–2% w/w as a reactive intermediate in the active ingredient synthesis train, adjusted for molar equivalence in coupling reactions

    Downstream process integration

    • Introduced at early nitration or acylation stages before core ring modification
    • Real-time monitoring for residue control in purification
    • Direct transfer to downstream chlorination, methylation, or cyclization reactors

    Final product types

    • Selective herbicide technical concentrates
    • Systemic fungicide intermediate blocks
    • Plant protection active bulk crystals
    • Agrochemical pre-mixes for co-formulation

    2. Pharmaceutical Intermediate Manufacturing

    Active pharmaceutical ingredient (API) companies use 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone in developing antibacterial and antitubercular scaffold molecules. Its nitro and hydroxyl groups serve as functional handles for subsequent transformation via reduction or substitution in GMP-regulated process suites. Traceability and impurity profiling remain critical at every synthetic stage, especially when the intermediate proceeds toward human use APIs or finished dose forms.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US Pharmacopeia (USP) standards for pharmaceutical intermediates
    • European Pharmacopoeia (Ph. Eur.) guidelines for purity and trace analysis
    • FDA 21 CFR Part 211 for finished pharmaceutical manufacturing

    Typical usage ratio

    • 0.8–1.5% on a molar input basis, tuned to the core reaction yield and targeted substitution pattern

    Downstream process integration

    • Dosed in step three or four of N-heterocycle assembly via controlled addition reactors
    • Filtered and crystallized before reductive transformations or halogen exchange
    • Monitored with HPLC and NMR for batch-to-batch consistency

    Final product types

    • Pharmaceutical intermediate bulk (PIB) products
    • Building blocks for third-generation antimicrobial APIs
    • API intermediate powders for further derivatization
    • Registered Drug Master File (DMF) enterable substances

    3. Advanced Dye and Pigment Synthesis

    Specialty colorant manufacturers deploy this pyridone compound in synthesizing high-purity azo and anthraquinone dyes. Its electron-rich nitrogen and oxygen functionalities enable controlled coupling for shade tuning and increased lightfastness, crucial for technical textiles, high-performance inks, and paper coatings. Input ratios rely on the desired absorbance maxima, while processing requires strict control of residual solvents and nitrate handling.

    Industry compliance standards

    • OEKO-TEX Standard 100 for textile safety
    • EN 71-3 (Toy Safety Directive) for pigment toxicology
    • ISO 14001 Environmental Management for waste minimization
    • REACH Substances of Very High Concern (SVHC) monitoring

    Typical usage ratio

    • 1–4% as a dye intermediate, determined by color intensity and coupling efficiency

    Downstream process integration

    • Mixed at the diazotization or coupling stage in closed systems
    • Filtered after main reaction to capture side products
    • pH controlled before transferring to further condensation reactions

    Final product types

    • Technical textile dyestuffs
    • High-purity inkjet ink bases
    • Specialty paper pigment dispersions
    • Stable color-fast pigment powders

    4. Specialty Electronic Material Synthesis

    Manufacturers of organic electronic materials employ 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone in the design of nitrogen-containing small molecules for organic semiconductors. Its functionalized ring assists in electrode interlayer material synthesis, enhancing device stability in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Input concentrations must meet stringent purity and moisture specifications to avoid downstream device defects.

    Industry compliance standards

    • IPC-1752A for materials declaration in electronic components
    • RoHS Directive 2011/65/EU restrictions
    • JEITA EM-3509 for organic electronics specifications
    • ANSI/IPC-A-610 for electronic assembly quality

    Typical usage ratio

    • 0.3–1.2% relative to polymer or small molecule semiconductor mass, based on device layer requirements

    Downstream process integration

    • Dosed into solvent-phase synthesis of precursor layers
    • Purified by column chromatography to eliminate trace ionic impurities
    • Vacuum-dried before final deposition onto substrate films

    Final product types

    • Organic semiconductor precursors
    • Interface materials for OLED/OPV stacks
    • Conductive molecular additives in device fabrication
    • Specialized thin-film coating additives

    5. Research Reagent Blocks for Fine Chemical Synthesis

    Fine chemical and contract research organizations value 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone as a building block for custom molecule development. Its reactivity profile supports rapid assembly of libraries for medicinal chemistry, crop science, and material innovation. End-use scenarios often require analytical documentation and traceable production lots, especially under ISO-certified laboratory environments.

    Industry compliance standards

    • ISO 9001:2015 certified production and QC
    • OECD Guidelines for the Testing of Chemicals (GLP for reference materials)
    • GHS/CLP Regulation (EC) No 1272/2008 for labeling and SDS publication
    • Traceability per ISO 17025 for analytical laboratories

    Typical usage ratio

    • Variable, typically 0.1–3 mol% per synthetic protocol, driven by experimental scale and target molecule architecture

    Downstream process integration

    • Loaded as a functional block in solution or solid-phase synthesis
    • Employed during lead-optimization or substitution scanning
    • Captured and purified by preparative chromatography

    Final product types

    • Reference standards for pharmaceutical research
    • Custom fine chemical intermediates
    • Analytical laboratory reagents
    • Discovery-phase compounds for patent screening
    Free Quote

    Competitive 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone 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.

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    Certification & Compliance
    More Introduction

    4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone: Our Perspective as a Direct Manufacturer

    A Behind-the-Scenes View

    Every day in our main production facility, the team pours energy into making 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone. This specialty pyridone compound rarely attracts big media attention, though in chemical manufacturing circles, it fills a crucial need. For us, creating this product is not about chasing headline news. Instead, it’s about precision, steady control, and deep respect for the details that govern each batch. Our crew has developed a familiar rhythm working with these molecules. Over years of hands-on learning and careful review of industry literature, we’ve refined conditions to secure a stable, reliable output that meets customer needs in pharmaceuticals, pigments, and advanced intermediates.

    Understanding the Product on the Shop Floor

    Our version of 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone follows a clean and consistent process. We use only high-purity raw materials, checked by both incoming QC and spot tests during synthesis. Batch yields stay steady across seasons, which matters to our repeat buyers who depend on us to avoid lapses in quality. The compound handles well: light yellow to deep gold powder, free-flowing, easy to transfer between containers. Workers on the line watch out for moisture during packaging to keep clumping at bay. In our experience, slight color shifts can flag upstream variance, letting us catch issues before orders leave the plant. These visual cues, picked up over time, help us spot product you can trust.

    Specifications Rooted in Use, Not Just Paper

    We keep product on target for key physical properties and assay. Purity levels run above 98 percent by HPLC and most often both NMR and elemental analysis back this up. Over the years, some buyers have asked for custom particle size or color sortation. We learned the hard way that shaving micron sizes too fine makes handling a chore, so we stick to granularity that flows well in industrial mixers and reactors. Melting point consistently falls within the 189-193 degree range. Water content, checked by Karl Fischer titration for every major batch, lands below 0.3 percent. Our senior chemists and QC staff all know the telltale signs that signal when something veers off these norms. This attention translates to lower risk for those downstream—no mysterious degradation, no batch-by-batch guessing games.

    Applications: Lessons Learned Over Time

    Most of the 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone we ship moves into the pharmaceutical intermediate chain. Some gets converted to building blocks for antiviral and antibacterial agents. We receive frequent requests for stability data in variable humidity, owing to the sensitive nature of subsequent synthesis steps. From conversations with clients both at home and abroad, we know that clean spectra and long shelf life matter more than racing for a record turnaround time. One manufacturer shared that switching from a lesser grade sourced by a distributor lowered their waste by a measurable margin. Their reactor fouling decreased, helping operators avoid downtime. For pigment and specialty dye makers, uniform color and consistent melt point mean fewer headaches in production. In every case, the users value what holds up line after line—a reflection of the extra care we put at each step inside our walls.

    Direct Experience Shapes our Model

    We don’t see this compound as a generic commodity. Access to tighter raw material controls and our own purification columns gives us room to adapt process tweaks as market needs shift. Sometimes, requests come through for higher-clarity filtrates or lower residual solvents (acetonitrile, methanol) based on a buyer’s downstream requirements. We answer those by adjusting wash steps and oven cycles, followed by running shorter-lot validation under real-world storage. In the early days, cross-checking supplier certificates led to surprises; so now, no lot leaves our floor unless spot re-tests reconfirm numbers to within our upper and lower limits.

    Comparisons with Other Products from a Maker’s View

    It’s tempting to lump 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone alongside generic pyridone derivatives. This perspective misses subtle but crucial differences. For one, the nitro group at the third position grants this molecule specific reactivity prized in select pharmaceutical syntheses. Our modification at the sixth methyl position—not always found in similar structures—makes crystallization more forgiving, so finished product does not cake or set hard when stored for extended periods. Chemists who try substituting near-neighbor compounds often report yield loss, stalling, or unwanted side reactions. Our experience in scaling from grams to multi-kilo runs showed that small tweaks in ring substitution can ripple throughout the process, affecting both safety (by lowering dusting) and recovery rates during conversion. In contrast to pyridones with higher water solubility, ours develops a dry, solid finished state, keeping storage risks lower and meaning you can measure out without needing complex drying or blending stages before use. Those small distinctions only become clear after repeatedly handling and inspecting product lots, year after year.

    Sourcing: The Value of Traceability

    We find that taking full responsibility for both sourcing and manufacturing controls risk and shortens the feedback loop with end-users. Months of real-world testing and regular plant visits to see the process in person make a hard difference compared to remote traders and bulk re-sellers. Should a buyer report even minor issues—a faint false color, a slightly off-melt, a packaging tear—our manufacturing team springs into action, tracing records from the reactor logbooks to the final pack-out. Our operators have caught issues that never would have appeared in a paper-only audit, such as tiny but persistent static buildup that, unchecked, could lead to off-batch segregation. Our batch-labeling system keeps all product traceable, sharply reducing the risk of mix-ups. Buyers have direct contact with the actual chemists and line managers; this regular dialogue often leads to process tweaks that benefit everyone.

    Reducing Error by Relying on Manufacturer Knowledge

    Some years back, a client with a new process reported sticky, clumping product collected after shipping through a humid port. We looked through our own loading logs, re-checked our dunnage, and found that switching to slightly thicker liner bags cut the issue. These fixes came not from reading journals, but from touching and handling thousands of kilos ourselves. For those sourcing strictly through third-party channels, such tweaks can take months to filter back—or never actually surface. Our shipping supervisor points out that direct feedback avoids the blame game, letting us own each batch from start to finish.

    Transparency in Manufacturing Practices

    Over time, we’ve seen the importance of laying our production and quality methods bare for review. Curious buyers have come through our facility, walked our shop floors, and audited not only our batch records but also our environmental controls. Sharing the actual process, including cleaning regimens, temperature logs, and maintenance cycles on reaction vessels, reassures customers who worry about contaminants and cross-over from other chemistry. We test not only finished product but also in-process material against both our own internal specs and what major international buyers ask to see. During one audit, it was clear the extra controls prevented unwanted halogen traces, which a lower grade product from competitors occasionally showed. The difference comes from running extra purges and not cutting corners to chase volume.

    Safety and Handling: Operator Lessons Learned

    Every worker who handles 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone on our site learns the right PPE from day one. We maintain well-defined transfer and spill protocols—not just as written rules but as ingrained routines, learned from the real-world near-misses that shape a safer workplace. The compound itself does not give acute irritation in the way stronger oxidizers or acid chlorides do, but we take caution in keeping dust levels low during charging and sieving. Standard air handling and vacuum-assisted transfer lines control airborne particles, which keeps loss low and protects operators. Our dry rooms are checked for fit and seal integrity every shift. Lab techs who have transferred to handling our product often note that compared to bulkier, more hygroscopic intermediates, it proves easier to load and measure, reducing both wasted material and cleanup.

    Customer Requests: Customization, Limits, and Honest Talk

    Over the years, we’ve fielded unique requests—finer grind sizes, alternate solvents, packed-to-order in smaller drums. We always test new packaging and shipping methods on pilot lots, making clear to our buyers what actually works. Not every customer request gets a “yes,” especially if it puts product stability at risk or stretches beyond our primary process parameters. Our long-term relationships grow from truth-telling, not over-promising. If we can enhance a spec without sacrificing purity or shelf life, our engineers and operators collaborate to lock in the right change. Otherwise, we recommend what keeps product within the field data we’ve gathered over years, even if that means turning away unjustified one-off runs.

    Environmental and Regulatory Responsibility

    Running our own synthesis line exposes us daily to the importance of waste management and environmental controls. Small improvements add up—nuanced changes, like shifting from heavy-metal-based reagents to cleaner, recyclable catalysts, made a measurable shrink in effluent toxicity. Our line crews handle all waste solvent streams according to local regulations. Regular outside audits keep us honest; during these, we share not only what works but also what improvements we hope to roll out next. Some years back we made the call to increase recycling of mother liquor streams, learning by trial and error to reclaim valuable material and cut waste. Our partners and customers get to see the impact: reduced carbon footprint and tighter control on discharge, not simply a recycled selling point for brochures.

    Why Real Experience Matters

    Our hands-on understanding of 4-Hydroxy-6-Methyl-3-Nitro-2-Pyridone gives clients a working partner, not a faceless factory or a remote sourcing agent. The habits, know-how, and daily rhythms on our floor shape a product recognized for consistency, shelf stability, and positive operator experience. Each lesson—each tweak or customer call—translates into smarter runs, cleaner shipments, and material that fits real-world needs. Manufacturers, processors, and researchers who rely on pure, consistent intermediates tell us that direct lines to actual makers matter more than the most elaborate sales pitch. Because to us, chemistry is not just theory; it’s practice, accountability, pride, and the willingness to keep learning with each new lot we make.

    Challenges and Solutions Moving Forward

    Manufacturing this molecule in high quality will always bring new challenges. Raw material markets keep shifting, and energy costs don’t stay steady for long. Our response stays rooted in direct observation and targeted investment. Upgrading our drying and milling equipment, adding inline sensors, training new operators—these don’t just keep our certificates in good order; they shield our product from avoidable defects. We make a point to meet suppliers, learn their practices, and drop any that can’t guarantee true traceability. With buyers asking for more data up front and increasing transparency, we’ve expanded sample retention and record keeping, tracking every process tweak and each batch output like we’d track our own tool inventory.

    Having real experience with the raw materials and the finished product itself can’t replace theory, but it does give a kind of practical wisdom. By spending time on the line, seeing problems as they happen, we have built methods to solve them quickly and minimize disruption for our customers. Whatever market forces shift next, we’re set to keep delivering material that meets actual needs—backed by people who know their own craft inside and out.