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4-Chloro-2-Methoxy-Pyridine

    • Product Name 4-Chloro-2-Methoxy-Pyridine
    • Alias 4-Chloro-2-methoxypyridine
    • Einecs 629-479-6
    • 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

    400717

    Cas Number 1692-26-2
    Molecular Formula C6H6ClNO
    Molecular Weight 143.57 g/mol
    Iupac Name 4-chloro-2-methoxypyridine
    Appearance Colorless to light yellow liquid
    Boiling Point 202-204 °C
    Density 1.211 g/cm3
    Solubility In Water Slightly soluble
    Flash Point 85 °C
    Synonyms 2-Methoxy-4-chloropyridine
    Refractive Index 1.536

    As an accredited 4-Chloro-2-Methoxy-Pyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 100 grams of 4-Chloro-2-Methoxy-Pyridine, labeled with hazard symbols, batch number, and safety instructions.
    Shipping 4-Chloro-2-Methoxy-Pyridine is shipped in tightly sealed containers, protected from moisture and light. Packages comply with local and international chemical transportation regulations. Proper labeling, documentation, and handling procedures are followed to ensure safety during transit. Shipping is typically via ground or air freight, depending on hazard classification and customer requirements.
    Storage 4-Chloro-2-Methoxy-Pyridine should be stored in a tightly closed container in a cool, dry, well-ventilated area, away from sources of ignition, heat, and incompatible materials such as strong oxidizers. Store at ambient temperature, protected from moisture and direct sunlight. Properly label the container and ensure it is stored in accordance with relevant safety and regulatory guidelines for hazardous chemicals.
    Application of 4-Chloro-2-Methoxy-Pyridine

    Applications of 4-Chloro-2-Methoxy-Pyridine in Industrial Manufacturing

    As a manufacturer with established production and quality control expertise, we provide 4-Chloro-2-Methoxy-Pyridine for specialized applications in advanced chemical synthesis. The following sections detail focused industrial scenarios where this intermediate plays a critical role in formulating high-value downstream products according to international regulatory requirements.

    1. Pharmaceutical Intermediates for Anti-Infective Drug Synthesis

    4-Chloro-2-Methoxy-Pyridine serves as a key building block in the multi-step synthesis of pharmaceutical intermediates used for anti-infective agents, particularly quinolone and pyridine-derivative APIs. Its unique substitution profile enables selective functional group transformations essential for constructing active pharmaceutical compounds with precise pharmacological properties. Manufacturers integrate this intermediate during the core heterocycle assembly and subsequent modification stages, maintaining batch traceability and meeting stringent impurity thresholds throughout the synthetic route.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP–NF (United States Pharmacopeia and National Formulary) requirements for intermediates
    • EDQM CEP certification for pharmaceutical ingredient traceability
    • 21 CFR Part 211: US FDA current Good Manufacturing Practice (cGMP) for finished pharmaceuticals

    Typical usage ratio

    • 0.7–1.2 molar equivalents per step, adjusted by stage yield and target API complexity; scale-up batches range from 10–100 kg input per campaign

    Downstream process integration

    • Charged into heterocycle condensation (Suzuki or Buchwald coupling) as the starting scaffold
    • Used in subsequent nucleophilic substitution or ring modification to introduce target side chains
    • Purification of intermediates by recrystallization or chromatography before final active compound formation

    Final product types

    • Quinolone antibiotics
    • Pyridine-based anti-microbial agents
    • Intermediate-grade bulk API for export and custom synthesis

    2. Agrochemical Synthesis: Herbicide Active Material Production

    Downstream agrochemical manufacturers use our chlorinated methoxypyridine in formulating active materials for selective herbicides. Its electron-donating methoxy and electron-withdrawing chloro groups allow site-selective functionalization, supporting the synthesis of target-specific pyridinecarboxylic acid derivatives. Formulators incorporate the compound into multi-stage processes, starting from nucleophilic aromatic substitution and progressing to carboxylation, achieving consistent agrochemical grade standards.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • ISO 9001:2015 certified production management
    • OECD Guidelines for Testing of Chemicals
    • REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) for import/export within Europe

    Typical usage ratio

    • 1.0–1.4 molar ratio in initial synthesis step; adjusted to maintain balance with co-reactive carboxylating agents; typical batch input of 50–500 kg based on end-user scale

    Downstream process integration

    • Enters at the aromatic substitution stage for introduction of auxiliary functional groups
    • Participates in carboxylation and esterification to finalize the herbicidal scaffold
    • Followed by crystallization and milling for formulation into active ingredient concentrates

    Final product types

    • Pyridine-carboxylic acid based herbicides
    • Granular herbicide pre-mixes
    • Technical herbicide concentrates for later formulation

    3. Intermediate in Electronic Chemical Synthesis (OLED and Display Materials)

    The compound’s conjugated pyridine structure supports downstream synthesis of specialized intermediates for organic electronics, notably light-emitting materials and charge transport agents in OLEDs. Producers in the electronic materials field utilize it during early-stage synthesis to introduce unique functional moieties, optimizing electron mobility and emission wavelength characteristics of final thin film devices. Strict material quality is maintained by integrating the intermediate in controlled reactions under cleanroom protocols.

    Industry compliance standards

    • IPC-4101B – Specification for Base Materials for Rigid and Multilayer Printed Boards
    • IEC 62321 – Determination of certain substances in electrical and electronic products (RoHS)
    • Customers' proprietary QC protocols for trace ion and contaminant specification (sub-ppm level)
    • ISO 14644 Cleanroom Standards (for batch synthesis environment)

    Typical usage ratio

    • 0.8–1.3 molar equivalents per synthesis loop, adjusted by desired functional end-groups; typical batch input for specialty intermediates ranges from 5–60 kg

    Downstream process integration

    • Introduced during the key condensation or coupling reaction to introduce the methoxypyridine building block
    • Mainly used in condensation with aryl halides or boronic acids for functionalization
    • Followed by purification for deposition or co-polymerization in film fabrication

    Final product types

    • OLED emitter materials (blue and green emitters)
    • Charge transport materials for display pixels
    • Specialty intermediates for advanced organic semi-conductors

    4. Fine Chemical Manufacturing: Synthesis of Specialty Pyridine Derivatives

    Producers of fine chemicals and advanced intermediates rely on this compound in constructing highly functionalized pyridine derivatives for downstream applications in catalysis and performance additives. Leveraging the reactivity of the 4-chloro and 2-methoxy substitution, chemists synthesize tailored molecules used in custom research, coatings additives, and analytical reference standards, meeting precise product purity and batch consistency.

    Industry compliance standards

    • ISO 9001:2015 for quality management of fine chemicals
    • REACH Annex VII–VIII for registration and safe handling
    • Chemical Facility Anti-Terrorism Standards (CFATS) for regulated sites
    • GHS/CLP labeling compliance for global export

    Typical usage ratio

    • Varies from 0.5–1.1 molar equivalents, tailored by target derivative and reactivity of coupling partners; batch processing input ranges from pilot 2 kg to full-scale 100 kg

    Downstream process integration

    • Used at initial stage for selective nucleophilic substitution, coupling, or etherification
    • Subjected to further functional group manipulation (e.g., halogenation, oxidation) for specialty product tuning
    • Final step purification via distillation or column chromatography for maximum purity

    Final product types

    • Pyridine-based process catalysts
    • Pyridine surface-modifying additives
    • Reference standards and intermediates for lab-scale synthesis
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    Certification & Compliance
    More Introduction

    4-Chloro-2-Methoxy-Pyridine: Delivering Consistency for Chemistry’s Next Step

    Our Commitment to Precision: The Journey of 4-Chloro-2-Methoxy-Pyridine

    We manufacture 4-Chloro-2-Methoxy-Pyridine with care in every batch. Our team refines every detail, from sourcing to packaging, because this compound connects directly to innovative medicines and advanced material synthesis. To chemists and formulators who count on integrity, product consistency matters much more than marketing phrases. Chemical purity, byproducts, and even how a product dissolves can make or break years of downstream work. We invest in large-scale reactors and quality systems not just because regulators require it but because the users of this molecule pay for genuine reliability.

    Where 4-Chloro-2-Methoxy-Pyridine Fits—Purpose, Promise, and Potential

    Years of batch-to-batch preparation and close tolerance control have shown us that 4-Chloro-2-Methoxy-Pyridine isn’t just another pyridine derivative. The compound finds purpose at the start of countless pharmaceutical and agrochemical syntheses. Application teams in process chemistry use it to introduce the methoxy and chloro substitutions, which often trigger specific biological effects impossible to achieve with simpler pyridines.

    We see the compound’s reach in heterocyclic construction. Where others stop, this molecule’s electronic features, moderate steric impact, and manageable reactivity encourage further transformation—nucleophilic, electrophilic, or even dearomatization reactions. Rather than blending generically with other substituted pyridines, 4-Chloro-2-Methoxy-Pyridine offers a unique balance between reactivity and selectivity. There is a reason seasoned chemists return to this structure: it invites elegant steps, not synthetic dead-ends.

    Specification Born from Experience, not Only Numbers

    An experienced chemist working in the lab or plant doesn’t just look at the certificate of analysis. Actual color, odor, melting point, volatility during vacuum transfer—these details come from real use, not just spectrophotometric reports. Our specification for 4-Chloro-2-Methoxy-Pyridine reflects what we hear from bench chemists and industrial process engineers. Features like controlled chlorination degree, higher than 98% purity (by HPLC and GC), strict moisture content standards, and low heavy metal presence result from active feedback, not guesswork.

    Over the years, we’ve had customers spot minor shifts in their process yields when other makers’ material slips with trace byproducts or unflagged variation. Each time, we checked our procedures—paying attention to sources of raw 2-methoxypyridine, optimizing chloride introduction, even examining glassware impacts during scale-up. We built clearer documentation and improved inert gas blanketing protocols to chase those “hidden” sources of trace side-products. By respecting what small impurities do to advanced synthesis, our product has become trusted for both exploratory R&D and routine production.

    Seeing Usage in Action: Real-World Roles in Chemical Processes

    In our view, the best measure of a chemical’s value comes from its work in real chemistry. The way customers used this product in Suzuki or Sonogashira coupling reactions, for example, directly shaped our process—so we could better eliminate halide contamination and manage the precise batchwise presence of trace ether. In pharmaceutical R&D, 4-Chloro-2-Methoxy-Pyridine carves out a niche. Its electronic characteristics enable selective activation or protection in nitrogen heterocycle systems. Researchers count on it as a robust building block for kinase inhibitors, anti-infectives, and a host of crop-protection molecules far more complex than the starting materials.

    A generation ago, this compound appeared mostly in small-scale experimental work. Now, it shows up in kilo quantities, feeding into continuous flow reactors and kilogram-scale hydrogenations. Chemists who must make regulatory filings care about batch records, traceability, and material reproducibility at a deeper level than simple “off-the-shelf” options. From the beginning, we designed our 4-Chloro-2-Methoxy-Pyridine lines to serve this need, never cutting corners or shifting specifications to suit quick market pressures. Our reactors draw on closed-system handling and tightly controlled thermal ramping, streamlining downstream separation for cleaner output. We don't advertise “one product, fits all.” Instead, we calibrate parameters so customers see no shift between pilot batch and commercial shipment.

    Nuances That Matter: Why This Grade Stands Apart

    Some makers will claim every source or method for pyridine derivatives offers equivalent results. Over decades, we’ve learned that’s not the case—one misstep in process, and suddenly, an end-user faces integration bottlenecks or waste streams they can’t tolerate. We’ve seen what happens when uncontrolled side-products creep into a synthesis, including the way they complicate downstream purification. That knowledge led us to invest in analytical redundancy—multiple orthogonal purity assays for each lot, so extra chloride, unreacted methoxy, or trace dimers are caught before shipping.

    We also heard from synthesists about how water content, storage method, and minor impurity profiles change their protocols. For moisture-sensitive steps, a fraction of a percent deviation can foul a reaction path or slow a catalytic process. We keep water tighter than older industry benchmarks and package material under inert atmosphere. Long before “green chemistry” became a buzzword, we designed our processes for lower waste and easy solvent recycle. Batch records and origin documentation follow every shipment to preserve compliance for regulated users.

    Compared to unsubstituted pyridines or 2-methoxy analogs without the chloride, this molecule opens up more flexibility. In cross-coupling and substitution chemistry, the rare combination of chloro and methoxy substituents enables both leaving group potential and regioselective activation. As our own team’s experience grew, so did our appreciation for the subtler chemistry: 4-chloro confers additional site control, while 2-methoxy fine-tunes reactivity, delivering both stability for long-term storage and adaptability during demanding transformation campaigns.

    Challenges and Solutions from the Manufacturer’s Perspective

    Running a plant that produces 4-Chloro-2-Methoxy-Pyridine requires constant attention. Supply chain issues, regulatory changes, and the ever-present need for quality mean shortcuts invite headaches and unhappy customers. From the start, we targeted suppliers who understand the expected purity, and we built up onsite QC infrastructure instead of relying on basic inspections. With global volatility, transportation and packaging improvements have kept us responsive—even as legal requirements changed. For case after case, our team met with users’ chemists to troubleshoot variability or discuss alternative storage options, especially for long-lead-time programs.

    Impurities cause the most pain. Trace byproducts might escape detection by basic methods but alter a sensitive pharmaceutical step. By adding LC-MS and multiple chromatographic checks, we headed off subtle degradants and nonvolatile residues. Process improvements focus on both product purity and decreasing energy use, limiting both carbon output and hazardous byproduct load). Drawing from customer feedback, we reformulated our cleaning and workup protocols, eliminating residue that once caused color changes or undetectable reactivity losses. Instead of waiting for issues, we actively look for ways material can falter, then act early. No short-term mindset, no shifting hazards to the user.

    Partnership, Not Just Supply—The Value of Direct Manufacture

    People trust direct manufacturers for a reason. We see chemical supply as a partnership—customers bring us their pain points, not just their purchase orders. Our technical support teams talk directly with chemists handling scaling, process improvements, or analytical troubleshooting. We know that for regulated pharmaceutical work, a close relationship with the actual producer saves time and holds real value. Whether the issue is shelf-life, stability under light or moisture, or compatibilities with specific equipment, our engineers and QC staff lean in. We get called on to review research-stage needs just as often as commercial resupply issues, and feedback runs both ways.

    For example, when one client shifted to a new hydrogenation step, their results deviated over several runs. After weeks of repeat lab work, our technical team mapped the impurity profile and modified trace-metal removal protocols—delivering the consistency they counted on, from R&D pilot to final scale-up. Another customer updated us about regulatory concerns requiring extra documentation on raw material traceability, so we responded by expanding our archival batch record systems and providing reference spectra on request.

    Development, Compliance, and Safety Without Compromise

    Any producer watching the industry knows regulations aren’t one-size-fits-all. The market for 4-Chloro-2-Methoxy-Pyridine now extends to geographies with unique documentation and compliance hurdles, especially as new pharma and crop projects emerge in Asia, Europe, and the Americas. We focus on meeting these, rather than pushing material that only matches the broadest market. Traceability, batch records, and independent third-party quality confirmations help our customers sail smoothly through audits.

    From our experience, handling and storage dictate the fate of a synthesis almost as much as the product quality itself. That’s why every canister and drum gets filled under inert gas and sealed tightly against moisture and air. Our facilities use closed transfer systems for both charging and dispensing, sparing users from contamination risk and exposure hazards. Shipping documentation covers full analytical details, traceability, and custom labeling when needed for specialized workflows.

    We know safety extends beyond the manufacturing gate. Teams receive regular safety briefings and equipment calibration updates, and new process changes get rolled out only after hands-on review. For customers with unique process environments—ranging from low-temperature chemistry to continuous flow—our technical group stands ready to advise on compatibility and adapt formulations as needed.

    Listening, Improving, and Innovating Together

    No chemical product stands still—and neither do our users. We don’t just rest on legacy formulations. Minute changes in customer priorities, regulatory frameworks, or industrial technology push us to adjust manufacturing, quality management, and analytical methods. In the last year alone, our team revisited packing media, trialed alternate sealing films, and swapped certain drum liners after an end-user flagged a trace contaminant during long-term storage testing. Responsive change, not inertia, drives us.

    Because 4-Chloro-2-Methoxy-Pyridine now plays a part in more complex syntheses, especially for oncology or breakthrough anti-infective molecules, reliable availability and deep technical support matter as much as the label specification. Our staff directly briefs customers on both product chemistry and compliance topics—never passing responsibility down the line. Every improvement, big or small, stems from conversations about what users need, and what frustrates their progress. Large or small, we give feedback and specialized solutions the same focus, as lasting partnerships come from openness and technical clarity.

    Choices in the Marketplace: What Sets Us Apart

    Buyers today face a crowded field of producers and traders. Many see “commodity” suppliers offering what seems like a cheaper product, but from customer stories, hidden batch-to-batch variation, uncertain post-shipment support, and hard-to-resolve quality issues lead to higher costs over the project life. Our direct manufacturing focus never splits attention between marketing and actual chemistry. Every resource goes into better control, faster support, and direct access to real expertise.

    One key difference? Our teams run stability, stress, and real-world application testing alongside the standard assays. The person managing process scale-up in a factory, or planning a new API intermediate route, can call on our full records and lean on practical problem-solving experience. Customers get continuity across shipments; they do not struggle with mid-project recalibration or trace-level contaminant troubleshooting. We see these as the basics, not value-added extras.

    Strict quality keeps our 4-Chloro-2-Methoxy-Pyridine in demand for long-term synthesis programs and new drug discovery. Customers tell us they prefer working with a chemical producer ready to adapt production, troubleshoot on short notice, and build scientific trust beyond the product portfolio. Bookkeeping and regulatory support matters, but what matters more is confidence that the next batch keeps the process going.

    The Manufacturer’s Perspective on Moving Forward

    Manufacturing 4-Chloro-2-Methoxy-Pyridine today involves more than producing a substance with a catalog number. The pressure to keep every variable under real control—from solvents to energy, from trace metals to packaging—demands ongoing investment. By integrating deeper analytical feedback, tightening raw material chains, and opening workflow conversations with customers, we support the guaranteed progress of both the research lab and the production plant.

    As the link between fine chemical supply and new medicine or crop agent synthesis becomes more critical, our job is to keep risks low, performance high, and communication open. Easy answers rarely come in this field, and only manufacturers with a deep view of chemistry and its challenges thrive in the long haul. We welcome change that brings safer, more efficient, and more reliable chemistry—driven by both what users want and what the science demands.

    We keep production rooted in practical know-how, listening as much as delivering—because every kilogram makes a difference in the real world.