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2-Hydroxy-4-Methyl-3-Nitropyridine

    • Product Name 2-Hydroxy-4-Methyl-3-Nitropyridine
    • Alias 2-Hydroxy-4-methyl-3-nitro-pyridine
    • Einecs 629-022-6
    • 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

    521357

    Chemicalname 2-Hydroxy-4-Methyl-3-Nitropyridine
    Molecularformula C6H6N2O3
    Molecularweight 154.12
    Casnumber 34411-67-9
    Appearance Yellow crystalline solid
    Meltingpoint 95-97°C
    Solubility Soluble in organic solvents like DMSO and ethanol
    Smiles CC1=CC(=NC(=C1O)[N+](=O)[O-])
    Inchi InChI=1S/C6H6N2O3/c1-4-2-5(8(10)11)7-6(9)3-4/h2-3,9H,1H3

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

    Packing & Storage
    Packing Sealed amber glass bottle, labeled with “2-Hydroxy-4-Methyl-3-Nitropyridine, 25g.” Features hazard symbols and lot number.
    Shipping 2-Hydroxy-4-Methyl-3-Nitropyridine is shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. It should be packed according to regulations for hazardous chemicals, using appropriate cushioning and labeling. Ensure documentation includes material safety data sheets (MSDS) and comply with national and international transport regulations for shipping chemicals.
    Storage **2-Hydroxy-4-Methyl-3-Nitropyridine** should be stored in a tightly closed container, in a cool, dry, well-ventilated area away from sources of ignition and incompatible substances such as strong oxidizers and acids. Protect from moisture and direct sunlight. Label the container clearly, and ensure storage in accordance with relevant safety protocols and regulations for hazardous chemicals.
    Application of 2-Hydroxy-4-Methyl-3-Nitropyridine

    Applications of 2-Hydroxy-4-Methyl-3-Nitropyridine in Industrial Manufacturing

    2-Hydroxy-4-Methyl-3-Nitropyridine serves as a key intermediate in advanced chemical synthesis, supporting specialized downstream manufacturing sectors with strict formulation, process integration, and regulatory demands. Our in-house production prioritizes traceability and lot consistency to meet global compliance and support your process scale-up needs.

    1. Pharmaceutical Intermediate for Antimicrobial Agents

    Pharmaceutical manufacturers incorporate this compound as a building block in the synthesis of select nitropyridine-derived antimicrobials. Its consistent purity enables efficient coupling or cyclization steps, critical for batch quality and process reproducibility just upstream from final API formation. Careful ratio control in multi-step synthesis directly influences yield and impurity profile downstream, streamlining validation and regulatory submission dossiers.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US Pharmacopeia (USP) General Chapters for Intermediates
    • European Pharmacopoeia (Ph. Eur.) requirements for starting materials
    • 21 CFR Part 211: US FDA cGMP guidelines

    Typical usage ratio

    • 10–25 mol% relative to primary amine precursor; adjusted per target API's synthetic route and reaction stoichiometry

    Downstream process integration

    • Introduced at the initial step of nitropyridine core assembly, followed by hydrogenation or substitution, proceeding through to penultimate or final API synthesis steps

    Final product types

    • Finished antimicrobial drug substance (API)
    • Sterile injectable and oral solid dosage forms

    2. Agrochemical Synthesis: Pesticide Intermediate

    Agrochemical producers select this material for its role in constructing complex pyridine-based pesticide molecules through nitration and methylation pathways. Detailed control of concentration is crucial to manage downstream toxicity profiles and environmental residue. During the core synthesis phase, the compound participates in controlled condensation or ring modification, impacting bioactive structure and formulation compatibility for final product types.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • REACH Regulation (EC) No 1907/2006 registration for intermediates
    • ISO 9001:2015 certified quality management for pesticide raw materials
    • OECD Guidelines for the Testing of Chemicals (Residue determination and environmental fate)

    Typical usage ratio

    • 5–12 wt% relative to total active core mass, optimized per pesticide variant and desired residual stability

    Downstream process integration

    • Added at pyridine ring construction or as a nitration/methylation precursor before chlorination or further functionalization, then isolated prior to formulation blending

    Final product types

    • Technical grade pesticide actives
    • Wettable powders and water-dispersible granules

    3. Dye and Pigment Intermediate for Specialty Coatings

    Specialty coatings plants utilize this compound as a base material for synthesizing nitropyridine-based dyes and pigments, valued for their chemical stability and shade precision. Accurate metering during batch or continuous synthesis impacts chromatic yield and particle uniformity, particularly when the intermediate functions in diazotization or coupling reactions prior to pigment dispersion or resin integration.

    Industry compliance standards

    • EN 71-3:2019 for toy safety and migration of certain elements (relevant to pigment use)
    • ISO 13320:2020 for particle size analysis in pigments
    • ASTM D3723-05 Standard Test Method for Pigment Content
    • Registration under the EU REACH Regulation for pigment intermediates

    Typical usage ratio

    • 1.5–6.0 wt% in pigment precursor feed; adjusted for color intensity, brilliance, and solvent compatibility

    Downstream process integration

    • Charged to batch vessel as the primary aryl source for nitropyridine dye synthesis, then run through coupling and purification before millbase pigment isolation

    Final product types

    • Organic pigment concentrates for coatings
    • Solvent- and water-based industrial colorants

    4. Synthesis of Analytical Reagents for Diagnostic Assays

    In analytical reagent manufacturing, this compound forms a core reactant for producing pyridine derivatives with chromogenic or fluorometric properties deployed in diagnostic test kits. Controlled input quantity determines sensitivity and selectivity in downstream reagent formulations, particularly during the derivatization or bioconjugation phase, and rigorous in-process analysis assures consistent detection limits in certified in vitro diagnostics.

    Industry compliance standards

    • ISO 13485:2016 medical device quality management
    • CLSI (Clinical and Laboratory Standards Institute) EP protocols for reagent validation
    • 21 CFR 820: US FDA Quality System Regulation for diagnostics
    • Directive 98/79/EC (IVDD) on in vitro diagnostic medical devices (EU)

    Typical usage ratio

    • 0.1–2.5 wt% in reagent precursor blend; set for spectral sensitivity and matrix compatibility per test format

    Downstream process integration

    • Added during derivatization stage to introduce functional group(s) for color development in detection reagent, then stabilized and filled into kit components

    Final product types

    • Chromogenic diagnostic kits
    • Pre-measured reagent vials for laboratory immunoassays or biochemical testing panels

    5. Fine Chemical Synthesis for Research and Custom Libraries

    Custom synthesis organizations and research laboratories value this raw material for constructing small-molecule libraries and reference standards, especially when exploring novel nitropyridine analogues for bioorganic chemistry and structure-activity relationship (SAR) studies. Accurate dosing and integration at the scaffold assembly phase supports rapid iteration and purity tracing, facilitating downstream lead optimization.

    Industry compliance standards

    • GLP (Good Laboratory Practice) as per OECD Principles
    • ISO/IEC 17025:2017 for research laboratory competency
    • REACH registration for off-label research chemicals
    • Chemical Safety Assessment (CSA) requirements for experimental use

    Typical usage ratio

    • Variable, 0.2–5.0 mmol scale per substrate batch; adjusted for desired compound diversity and purity benchmarks

    Downstream process integration

    • Used in initial library formation as the source of heterocyclic ring, then transformed via alkylation, acylation, or reduction to yield unique target analogues

    Final product types

    • Research-scale fine chemicals
    • Custom pyridine-based compound libraries
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    Competitive 2-Hydroxy-4-Methyl-3-Nitropyridine prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    2-Hydroxy-4-Methyl-3-Nitropyridine: Insights from Inside Our Factory Floor

    Bringing Authentic Chemical Production to the Forefront

    There’s a lot of noise out there about intermediates and specialty chemicals, but few people get to see what goes into producing a compound like 2-Hydroxy-4-Methyl-3-Nitropyridine. As a manufacturer, we don’t just move barrels around or slap labels on bottles; our team measures, blends, purifies, and analyzes every gram in-house. We work with this molecule day in and day out. Because of that, our view is shaped by real hands-on experience and a sense of responsibility that comes from seeing science brought into action, not just talked about.

    Understanding 2-Hydroxy-4-Methyl-3-Nitropyridine

    First off, we start with precise nomenclature and known characteristics. 2-Hydroxy-4-Methyl-3-Nitropyridine falls within heterocyclic nitrogen-based aromatics, sporting a nitro substituent at the 3-position, a methyl group at the 4-position, and a hydroxy function at the 2-position. This sort of functional diversity on a pyridine core opens up several routes for downstream derivatization, coupling, and transformation. Aromatic nitro compounds like this act as both building blocks and stepping stones for pharmaceutical research, agrochemical synthesis, and even pigment chemistry.

    Behind the glassware, this compound starts life as a challenging intermediate to isolate. Methylation, nitration, and subsequent hydrolysis steps often come with finicky byproduct profiles and require vigilant purification. Our typical product displays a purity of at least 98 percent by HPLC, often exceeding that, with controlled moisture and ash content. We monitor crystallinity, look for residual solvents, and confirm structure by both NMR and mass spec. Batch records stretch back for years so we can trace every kilogram made. That’s why a conversation around this compound means more than just reading a spec sheet—it turns into trust built on quality control and consistency.

    Where Real-World Manufacturing Makes the Difference

    After years of running the reactors, we’ve observed the challenges that set this compound apart. Methyl groups tend to add steric bulk, sometimes slowing certain reactions or making separation steps trickier. The nitro functional group creates both reactivity and sensitivity: temperature ramping too quickly can lead to hot spots or unwanted degradation, especially at scale. In practice, this means production lines must run with close attention to temperature profiles and cooling jackets. The hydroxy group must stay free to ensure reactivity in further downstream coupling, so avoiding contamination and side reactions is vital throughout the batch process.

    Why is this so crucial? Because customers using 2-Hydroxy-4-Methyl-3-Nitropyridine aren’t buying generic powders for generic recipes. They depend on shelf-stable material—no sticky clumps, no drifting impurity profiles. When our lab receives feedback, we can tweak parameters in real time. Maybe a customer catches a slight yellowing after a few months of storage; we pull batches, crank up analytical runs, and optimize drying or adjust solvent quenching steps. Big intermediates distributors rarely get their hands dirty in this way. As a true manufacturer, fixing problems never gets farmed out; we own every drum.

    What Sets Our Compound Apart from Standard Pyridine Intermediates

    Having spent years working on pyridine chemistry, clear contrasts stand out between this molecule and simpler or less substituted analogues. Take unsubstituted pyridine, or even 2-Hydroxypyridine: these lack the extra methyl and nitro groups, meaning they behave entirely differently both in production and application. Yields for mono-functionalized compounds often go higher, but multi-substituted versions like this one call for extra care—every new substituent changes everything from polarity to stability.

    In pharmaceutical R&D, small changes in functional groups lead to big swings in reactivity and product profiles. For example, the nitro group allows for further reduction to an amine, giving rise to valuable active pharmaceutical intermediate (API) fragments. The 4-methyl group brings a modest degree of lipophilicity and sterically influences what can be achieved in cross-coupling or condensation reactions. The hydroxy group delivers additional reactivity for forming esters, ethers, and carbamates. People using the base pyridine—or even 3-Nitropyridine—may not see these same downstream options.

    We’ve fielded direct requests from research groups looking to push boundaries in enzymatic inhibitor libraries or design new herbicidal scaffolds. More than once, they find that the buildable complexity of 2-Hydroxy-4-Methyl-3-Nitropyridine turns up where other, simpler compounds fail for solubility, electronic tuning, or chemical accessibility. In these cases, pure, reliably manufactured lots matter. It comes down to trait consistency and repeatability, batch after batch, trial after trial.

    Applications Shaped by Decades of Collaboration

    You don’t spend years making the same molecule without tracking its journey through the market. Our customers run the gamut: academic labs, integrated pharma plants, boutique agricultural research firms. In most of these settings, 2-Hydroxy-4-Methyl-3-Nitropyridine acts as an intermediate, setting the groundwork for more complex molecular architectures. We see it employed to build key cores of drug discovery programs, often through reduction or condensation.

    Materials researchers tell us they value the compound’s flexibility, especially when it comes to ligand design or construction of small-molecule catalysts. Agrichemical innovators sometimes test its scaffolding properties for herbicide or insecticide development. Because of the way we control particle size during the final crystallization, the compound pours freely, dissolves on cue, and provides researchers a predictable starting point, with no hidden reactivity lagging from manufacturing slipups.

    Our production floor meets the highest standards for contamination control and product isolation. We use glass-lined reactors to minimize trace metal pickup. Agitation speeds and temperature ramp rates go through dozens of pilot runs before scaling up. The crew tracks not just the final output but every variable along the way. If a partner reports downstream separation issues, we work backward through our logs to hunt for culprits—solvent changes, wash conditions, or even tiny plant environment shifts. It’s this relentless focus that separates true manufacturers from middlemen just shipping packages.

    Why Specifications Tell Only Part of the Story

    We publish clear assay data—most batches at or above 98 percent by high-performance liquid chromatography, with water content regularly hitting low single digits. But those numbers, while important, never tell the full story of how a substance lives and breathes on the bench. Take particle size: Most customers need powder that doesn’t cake and re-disperses smoothly, so our production team keeps tabs on both mean and outlier granule sizes. The crystalline habit matters, too; security in storage and handling flows directly from those choices made during cooling and drying.

    No two production runs are truly alike in complexity, but our records keep drift in check. We perform both proton and carbon NMR on each batch, often supplementing with LC-MS for structure confirmation. These results aren’t just numbers on a spreadsheet—they’re the result of morning rounds on the line, late-night troubleshooting, and relentless tweaking of purifier settings. Customers don’t see the sleepless nights or the extra analytical cycles, but they feel the benefit with every consistent vial.

    Challenges, Solutions, and the Learning Curve Only Manufacturers Experience

    Chemical manufacturing is about more than making a product that looks right. It means building a process that’s reproducible, safe, and tuned for exacting end-use conditions. We’ve faced our share of growing pains. Early on, we dealt with sequence bottlenecks that let residual precursors slip through and show up as faint, stubborn impurities. Chasing out these contaminants required aggressive column purification and even tinkering with upstream reagents—sometimes swapping suppliers, sometimes adjusting reagent grades.

    Another hurdle cropped up during nitration. Nitroaromatics create exotherms, and the risk of runaway reactions never drops to zero. We invested in advanced process controls and double-check waste stream handling to keep the shop and surrounding community safe. As the industry’s scrutiny of chemical stewardship grows, our daily checklists now include full traceability and batch quarantine processes, pushing us toward safer, smarter production with less environmental impact.

    Downstream, keeping moisture below target figures forced us to redesign sections of our dryer line. Persistent clumping after crystallization led us to trial every drying approach in the book, from vacuum ovens to fluidized beds. Our operators send reports up the chain at the slightest sign of deviations. This loop of feedback and improvement isn’t just about today’s needs—it serves the research community for years to come, as each small fix ripples outward in the form of higher product standards.

    The Difference Direct Manufacturing Makes for Users

    Often customers only know the finished powder or crystalline solids that reach their bench tops, but the origin story shapes every property. Each decision about solvent recovery, impurity profile, drying conditions, or storage—these all get baked into the product’s usability. In our own warehouse, we can look at dozens of aging samples, watching for color change, solubility drift, or odor. The data doesn’t sit idle. We tune packaging and transport to block humidity, cut down on oxygen ingress, and maximize shelf life so researchers skip the anxiety and dive straight into their experiments.

    Certain chemists need long-term supply security. Scale-up batches stay consistent because all protocols run on repeatable pilot lines before a single commercial drum leaves the gate. Batches destined for regulated industries receive even tighter scrutiny, sometimes involving third-party audits. Training and cross-checks keep fresh eyes on every run, so both experienced and new staff can catch issues early. That global customer feedback loop shapes not just this molecule but how we approach everything on the line—every customer success story and setback matters to us as makers, not just as sellers.

    Limitations and Ongoing Improvements

    Some new users ask us why material from traditional resellers or generic suppliers seems to behave unpredictably compared to ours. It comes down to traceability, consistency, and the hands-on touch. Generic products—especially those made in bulk for commodity markets—often miss the mark on critical variables like residual solvent load, polymorphism, or minor byproduct profile. Once a researcher loses a week troubleshooting solubility or notices batch-to-batch drift, they come knocking with a sample and a question. In almost every case, careful manufacturing—batch documentation, real SPC charts, active engagement between plant and lab—makes the difference.

    No chemical plant reaches perfection on the first try—or the hundredth. Each new run uncovers fresh variables. Sometimes, legal or regulatory shifts push new cleaning protocols or documentation upgrades. We find value in adjusting and evolving, whether by adopting novel analytical tools, hiring experienced chemists, or refining plant design. Customers feel the effect in faster feedback cycles, fewer out-of-spec headaches, and, yes, better bottom-line performance in their R&D or production runs.

    Transparent, Honest Approach to Specialty Chemical Supply

    Our plant runs on more than machines and solvents: real communication, feedback, and practical hurdles guide every order and every bottle. Labs working on custom synthesis, scale-up investigations, or long-term pharmaceutical libraries can contact us to talk specifics. We’re happy to discuss not just how many zeros show up on an assay but how the material performs under the microscope, in the flask, in the warehouse, and during process formulation. Because we see every step, we can answer the deeper questions that come with real science—no evasions, shortcuts, or canned responses.

    Rounding out the story, we keep our ears to the ground for new regulatory or application trends. That means building better stability protocols, staying abreast of environmental accountability regulations, and investing in continuous process improvement. It’s not just about meeting present-day customer demand, but anticipating where the field might head next. Every kilo produced brings opportunity for feedback, learning, and further investment in the quality cycle.

    Conclusion: More Than Just a Product, a Commitment

    2-Hydroxy-4-Methyl-3-Nitropyridine demands more than elemental building and basic purification; it asks for adaptability, technical know-how, and the willingness to learn from both success and setbacks. By producing it in our own facility and owning the workflow from cradle to drum, we ensure that customers get a material shaped by genuine expertise—not corporate brochure-speak or theoretical claims. Our promise stays grounded in lived experience, with continuous improvement as both an obligation and a source of pride. Whether you’re building novel drug candidates, advancing agricultural science, or laying the groundwork for new chemical explorations, direct-from-manufacturer supply gives the solid base every discovery deserves.