2-Chloropyridine

    • Product Name: 2-Chloropyridine
    • Alias: alpha-Chloropyridine
    • Einecs: 202-708-7
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    909498

    Chemical Name 2-Chloropyridine
    Synonyms α-Chloropyridine
    Molecular Formula C5H4ClN
    Molar Mass 113.55 g/mol
    Cas Number 109-09-1
    Appearance Colorless to pale yellow liquid
    Boiling Point 192-194 °C
    Melting Point -42 °C
    Density 1.204 g/cm³
    Solubility In Water Moderate
    Flash Point 78 °C (closed cup)
    Refractive Index 1.559
    Pubchem Cid 7844

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

    Packing & Storage
    Packing 2-Chloropyridine is supplied in a 500 mL amber glass bottle with a secure screw cap and detailed hazard labeling.
    Shipping 2-Chloropyridine is shipped in tightly sealed containers, compliant with hazardous material regulations. It should be transported in a cool, well-ventilated area, away from ignition sources, acids, and oxidizers. Proper labeling and documentation are required to ensure safety during transit. Handle with protective equipment to prevent exposure or accidental release.
    Storage 2-Chloropyridine should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and incompatible materials such as strong oxidizing agents. Protect the chemical from moisture and direct sunlight. Ensure that the storage area is clearly labeled and access is restricted to trained personnel. Follow all relevant safety and regulatory guidelines.
    Application of 2-Chloropyridine

    Applications of 2-Chloropyridine in Industrial Manufacturing

    As a direct manufacturer with advanced batch capabilities, we supply 2-Chloropyridine for tightly-regulated chemical processes serving specialized industrial sectors. Below, we detail core downstream applications based on real-world process integration, industry compliance, dosing requirements, and final product profiles.

    1. Pharmaceutical Intermediates Production

    Major pharmaceutical companies use 2-Chloropyridine as a key building block for various active pharmaceutical ingredients, notably anti-tuberculosis and antihistaminic agents. Due to controlled substance status in several jurisdictions, compliance documentation and traceability apply from raw material storage to finished API synthesis. The material’s halogenated pyridine structure facilitates selective substitution and ring transformation in high-value reactions, frequently through nucleophilic aromatic substitution or as a precursor in cross-coupling protocols. Formulation chemists monitor residual halides closely according to regulatory limits before advancing to purification.

    Industry compliance standards

    • EU GMP (ICH Q7) for API manufacturing
    • US FDA 21 CFR Part 211
    • ChP, USP, and EP pharmacopoeias for intermediate traceability
    • REACH Annex VII (import & handling)

    Typical usage ratio

    • 0.8–2.5 molar equivalents relative to secondary amines; adjusted based on target API synthesis step, with typical process batch sizes from 50 g to 500 kg

    Downstream process integration

    • Stepwise ring functionalization or nucleophilic substitution for the formation of pyridyl substituted scaffolds in GMP pharma synthesis

    Final product types

    • Isoniazid (anti-tuberculosis drug intermediate)
    • Pyrilamine and other antihistaminics
    • Anxiolytic and anti-infective agents based on pyridine core
    • Custom research molecules for preclinical studies

    2. Agrochemical Synthesis

    Downstream agrochemical manufacturers employ 2-Chloropyridine for the synthesis of certain herbicides and fungicides, such as pyridine-based crop protection agents. The manufacturing process frequently requires multi-step transformations, where our material enters as a functionalized halogenated pyridine starting unit, progressing to ether, ester, or amide derivatives. Precision over residual halide and pyridine is paramount, given end-use on food crops and strict residue analysis under agricultural regulations.

    Industry compliance standards

    • FAO/WHO pesticide specification standards
    • US EPA 40 CFR Part 180 (Tolerances for Residues of Pesticide Chemicals in Food)
    • Globally Harmonized System (GHS) requirements for labeling & transport
    • China GB 2763 (National food safety standard for maximum residue limits)

    Typical usage ratio

    • 1.0–1.4 equivalents, depending on target molecular structure and downstream substitution (batch sizes from 100 kg to 2 tons per run)

    Downstream process integration

    • Initial chlorinated pyridine scaffold introduction, followed by coupling or further functional group modification in controlled synthesis lines

    Final product types

    • Herbicides such as clopyralid intermediate
    • Pyridine fungicides for broad-acre crop protection
    • Insecticidal intermediates containing pyridine backbone
    • Seed treatment actives and soil protection agents

    3. Dye and Pigment Manufacturing

    Specialty dye producers integrate 2-Chloropyridine into pyridine-based chromophores applied in high-stability colorants and technical pigments. The material supports colorant chemistries that require strong electron-donating or electron-withdrawing characteristics, leveraging its chlorinated ring for targeted modifications. Precise input control enables downstream consistency in pigment shade and purity, vital for advanced textile dyes or specialty inks production.

    Industry compliance standards

    • Oeko-Tex Standard 100 for dye chemical safety
    • EU REACH registration for pigment intermediates
    • ISO 9001:2015 for batch manufacturing traceability
    • EN 71-3 for dyes used in toys and childcare articles

    Typical usage ratio

    • 0.6–1.2 molar equivalents, depending on coupling partner and target pigment—continuous adjustments according to the specified chromophore family

    Downstream process integration

    • Key intermediate for nucleophilic aromatic substitutions or coupling reactions during chromophore assembly and pigment backbone formation

    Final product types

    • Technical textile dyes with high lightfastness
    • Printing inks for industrial packaging
    • Special pigment dispersions for plastics
    • Electronic and photonic color filter materials

    4. Corrosion Inhibitor Manufacturing

    Industrial additive plants utilize 2-Chloropyridine as a precursor in the synthesis of customized corrosion inhibitors for oilfield, coolant, and lubricant markets. These molecules function by adsorbing onto metal surfaces, often after further amination or substitution of the chlorinated ring. Process chemists value feedstock purity and optimized charge ratios, since downstream impurity carry-through could compromise inhibitor film formation and stability in end-use environments.

    Industry compliance standards

    • ASTM D665 (Standard Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil)
    • ISO 12924 for lubricating oil additives
    • REACH SVHC for oilfield chemical registration
    • API 682 for mechanical seal oil systems

    Typical usage ratio

    • 0.9–1.3 equivalents compared to nucleophile; dosage tailored to downstream inhibitor molecular design (batch scale 100 kg to 1,000 kg increases)

    Downstream process integration

    • Amine substitution or quaternization in reactor vessels, followed by downstream blending into liquid or solid additive packages

    Final product types

    • Copper and steel corrosion inhibitors for engine coolants
    • Oilfield pipeline protection chemicals
    • Anti-corrosive lubricant additive components
    • Water treatment plant corrosion control agents

    5. Fine Chemicals for Catalysts and Ligands

    Chemical process engineers specify 2-Chloropyridine in the synthesis of functionalized ligand frameworks and catalyst precursors, owing to its tunable reactivity and compatibility with transition metal complexation. This raw material enters multi-step routes where halide displacement sets the stage for introduction of donor groups or chelators. Consistent input quality underpins reproducibility in catalyst activity and downstream selectivity metrics, impacting the efficiency of petrochemical, polymerization, and pharmaceutical manufacturing catalysts.

    Industry compliance standards

    • ISO 17025 calibration and process monitoring for high-purity chemicals
    • REACH Annex IX notification for specialty ligand production
    • IMDG Code (international marine transport of hazardous chemicals)
    • Chemical Facility Anti-Terrorism Standards (CFATS) for bulk chemical synthesis

    Typical usage ratio

    • 0.8–1.5 equivalents based on target ligand/catalyst backbone; refinements depend on chelating group introduction and formation of multidentate structures

    Downstream process integration

    • Stepwise incorporation via nucleophilic aromatic substitution, with further functionalization for bidentate or tridentate ligand synthesis

    Final product types

    • Homogeneous and heterogeneous catalyst ligands
    • Organometallic intermediate compounds
    • Catalyst pre-cursor resins for polymerization
    • Catalyst systems for bulk petrochemical reactions

    6. Veterinary Active Ingredient Production

    Veterinary drug manufacturers adopt 2-Chloropyridine as a critical step intermediate during synthesis of certain anti-parasitic APIs used in animal health. Process technical teams tightly control impurity profiles and byproduct carry-over per veterinary pharmacopoeia standards, ensuring feed and food chain safety. Downstream, the chlorinated pyridine skeleton establishes core pharmacological activity, often proceeding to methylation or amination in closed process lines for animal drug premixes or injectable formulations.

    Industry compliance standards

    • VICH GL (Veterinary International Cooperation on Harmonization) guidelines
    • EU Regulation (EC) No 470/2009 on veterinary medicinal products
    • US FDA Green Book (Approved Animal Drug Products)
    • ISO 22716 (GMP in animal drug manufacturing)

    Typical usage ratio

    • 0.9–1.6 equivalents, optimized via process trials based on precise animal dose requirements and final API structure

    Downstream process integration

    • Precursor introduction for primary pharmacophore formation, followed by isolation and crystallization prior to formulated drug batch compounding

    Final product types

    • Anthelmintic and anti-parasitic veterinary drug actives
    • Livestock injectable formulations pre-mix APIs
    • Companion animal parasiticide APIs
    • Feed additive drug intermediates

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    Certification & Compliance
    More Introduction

    2-Chloropyridine: Reliable Performance Starts with Trustworthy Manufacturing

    What 2-Chloropyridine Brings to Industry

    Manufacturing 2-chloropyridine requires steady hands, refined processes, and a close eye on consistency. We have been producing this compound for years, and each batch tells its own story—one of careful synthesis and precise control. 2-chloropyridine serves as a base for countless chemical applications, but stories about its use often disconnect from the real pressure pumps, reaction vessels, and real-world troubleshooting behind the scenes. Our focus stays grounded in real results. This product has become a staple for agrochemical intermediates and pharmaceutical synthesis, but that journey starts with practical manufacturing, day after day.

    Model Consistency and Specifications That Matter

    Our standard production runs of 2-chloropyridine anchor to rigorous specs, because even minor deviation leads to significant headaches—and costly process interruptions—for the downstream user. Purity often lands above 99%, thanks to disciplined distillation and continuous monitoring. As a liquid at room temperature, its manageable volatility and stability enable safe storage and transfer in typical plant environments, something that’s non-negotiable when handling halogenated aromatic compounds.

    From our experience, customers value transparency more than a wall of numbers. Yes, we work to keep water and trace impurities below measurable thresholds, supporting seamless integration into multi-step syntheses. We use analytical equipment like gas chromatography throughout production, not just on the final lot. That builds real confidence. The key isn’t just meeting internal numbers, but listening closely to partners—because a small impurity in 2-chloropyridine can sabotage a downstream catalyst or cause unpredictable by-products, costing days or even weeks.

    Manufacturing Lessons: What Sets 2-Chloropyridine Apart

    Having operated reactors regularly for the halogenation of pyridine, certain realities become clear. Compared to other substituted pyridines, 2-chloropyridine strikes a balance between reactivity and robustness. Looking at 3- or 4-chlorinated pyridines, you notice significant differences in controlling substitution patterns, not just in theory, but in plant performance. 2-chloropyridine consistently achieves selective chlorination under optimized conditions without excessive tar formation or side reactions, when correct process controls are in place.

    Process safety, environmental compliance, and waste minimization remain at the forefront. Our teams have dealt with the nuanced risks of chlorination reactions—mitigating the formation of polychlorinated by-products, handling HCl evolution, and minimizing energy input. We’ve refined closed-system transfers and tailored scrubbing units for off-gas treatment, and those investments show clearly in audit trails and operator feedback. Compared to other halogenated intermediates, 2-chloropyridine offers stability with manageable hazard profiles, although no halogenated aromatic should ever be taken lightly. The substance demands respect in every operation, from synthesis through packaging and shipment.

    Usage Driven by Real-World Process Needs

    Chemists choose 2-chloropyridine as a starting material for making pharmaceutical building blocks, crop protection agents, and advanced materials. It enables nucleophilic substitution, cross-coupling, and other key transformations. In our own pilot plant trials with clients in pharmaceutical synthesis, 2-chloropyridine has repeatedly shortened process timelines compared to alternatives like 2-bromopyridine, which often brings higher costs and supply chain volatility. Engineers and chemists often ask for 2-chloropyridine specifically because of its proven track record in scale-up fermentations and catalytic couplings.

    Many of our customers substitute other halogenated pyridines only when technical requirements force their hand—rarely for cost or handling improvements. For those designing a multi-step route to an active pharmaceutical ingredient, the accessibility of 2-chloropyridine’s chlorine leaves and the retention of the pyridine core translate into fewer purification steps and lower solvent consumption. We’ve seen manufacturing partners use our material in Suzuki-Miyaura couplings, taking advantage of its moderate leaving group ability for carbon-carbon bond formation. 2-chloropyridine often gives better yields and fewer side products in those settings than its methyl or nitro analogues.

    Differences from Other Pyridine Derivatives in Practice

    Within substituted pyridines, the 2-chloro version distinguishes itself by both reactivity and deliverable quality. Other pyridines might outperform in niche reactions, but in the hands of a process chemist, 2-chloropyridine stands apart for practical reasons. The position of the chlorine atom on the ring allows more selective downstream transformations. While 3-chloropyridine sometimes serves a similar role, our partners have cited extra purification steps and greater volatility during distillation, which translates into lost solvent and stricter engineering controls.

    Switching between pyridine derivatives during synthesis introduces more than just a catalog number change. Handling requirements shift too. For example, 2-bromopyridine’s greater density and reactivity increase demands on equipment lining and ventilation. In the years we’ve run both products on commercial scale, our operators have noted less corrosion and less PPE fatigue with 2-chloropyridine. Such operational details matter for worker safety and long-term plant reliability.

    Product Purity and User Experience

    We’ve watched batch records and analytical data from various industries using 2-chloropyridine, and the recurring theme is always reproducibility. Process development teams return to us because analytical impurity control remains consistent across shifts and seasons. We’ve heard the same feedback from custom manufacturers running 24/7—the confidence that no unexpected peaks show up when checking with HPLC or NMR.

    This product flows easily at ambient temperature, enabling economical drum or bulk transfers without the need for complex heating. Storage tanks constructed from compatible materials show clean service records, often outlasting tanks used for higher-molecular-weight halogenated materials, which can gum up lines or degrade elastomer gaskets.

    Compared to other halopyridines, the practical experience of unloading, sampling, and reacting our 2-chloropyridine usually demands less operator attention and manual intervention, with lower occupational exposure readings. These logistical efficiencies allow users to reduce downtime and maintenance, extending beyond the plant to departmental budgets and manpower allocation.

    Environmental and Safety Considerations

    As every responsible manufacturer knows, nothing trumps safe facility operations and sustainable stewardship. 2-chloropyridine production generates both chlorinated organics and hydrochloric acid as process by-products. Through close-loop capture, neutralization, and atmospheric scrubbing, our facilities meet tight emission standards and substantially limit environmental footprint. We train all personnel rigorously for the hazards of halogenated aromatics, and regular site audits keep procedures sharp.

    Wastewater from 2-chloropyridine synthesis gets routed through advanced oxidation steps before leaving our plants. We learned from early piloting projects that secondary containment and system redundancies minimize downtime during unplanned shutdowns. Continual upgrades to our batch record keeping and alarm systems further reduce risk during start-up and transfer operations. For customers, this means cleaner supply, but also peace of mind regarding regulatory and community scrutiny.

    Transport safety follows a clear chain-of-custody protocol, with vigilant inspection on all outgoing shipments. Our drivers and handlers get focused training to address the specific hazards of chlorinated aromatics, not just generic ‘dangerous goods’. That attention to detail has kept incident rates low and customer faith high, even as volumes scale up.

    Application Examples: Agricultural, Pharmaceutical, and Beyond

    In pesticide manufacturing, 2-chloropyridine lays the structural groundwork for organophosphate derivatives, some of which have become mainstays worldwide due to their broad-spectrum efficacy. We’ve supplied custom grades for formulators tackling resistant insect populations, collaborating on pilot runs until process stability and cost targets both hit the mark.

    Pharmaceutical clients often look for tight impurity profiles and high assay for regulatory filings. Here, our direct involvement in reaction troubleshooting—such as tuning chlorination temperatures, optimizing catalyst loads, and balancing solvent use—builds real partnerships. By supporting process validation work, we’ve helped teams shave weeks off development cycles for target molecules that use 2-chloropyridine as a core intermediate.

    Polymers and specialty chemicals also draw from our 2-chloropyridine. In fluorination projects, the material’s reactivity supports efficient halogen exchange, producing advanced building blocks for electronics and functional coatings. Scale-up data from these projects has guided our ongoing investment in batch reactor control and solvent recovery systems, keeping overall production more sustainable.

    Market Realities and Reliable Supply

    A dependable supply chain means more than on-time shipping. It’s about building reserves to buffer outages, sharing real-time updates during logistics slowdowns, and keeping a steady hand on quality assurance, especially when market prices fluctuate. We watch the global pyridine market closely, adjusting procurement and storage strategies as upstream prices for basic feedstocks like pyridine rise or fall. Years of direct experience in this space have forged strong vendor relationships, so customers get smooth delivery even during raw material shortages.

    We avoid cutting corners on process validation and inventory checks, even when competitors race to the bottom on pricing. Downtime from an off-spec delivery far outweighs any short-term savings. As our volume commitments have grown with multinational partners, batch traceability, secure documentation, and regular requalification reviews form the backbone of the operation.

    Customers trust us to provide what their forecasts demand—even when markets shift quickly after regulatory changes or harvest swings in agriculture. We include these customers in early warning communications, not leaving them blindsided by global disruptions.

    Continuous Improvement Driven by Direct Experience

    As a real manufacturer, not just a brand or trader, our team takes pride in traveling the full distance from raw material sourcing to product in your tank or drum. We keep older reactors upgraded, invest in more accurate inline analytics, and train new operators until they have confidence in both routine and emergency situations. Fatigue, unexpected shutdowns, and raw material hiccups are part of manufacturing’s reality, but strong culture and process discipline turn those challenges into fewer customer disruptions.

    Many improvements in our 2-chloropyridine line have come from listening closely to our partners. For example, feedback about residual solvent traces drove us to rework solvent recovery cycles and invest in scrubbers. That same responsiveness shapes how we schedule maintenance, manage surge demand, and forecast seasonal capacity needs.

    Responsible Production Means Listening and Responding

    Environmental and workplace safety regulations keep evolving. Sitting on legacy processes doesn’t cut it. Our management systems include real-time data gathering, audits, and transparent incident reporting. These practices make sure any deviations get caught and rectified before they impact users’ material streams or compliance status.

    As the global chemical supply chain faces more scrutiny and environmental pressure, we are investing in cleaner energy sources, solvent recycling, and emissions control. Our research and technical teams collaborate daily to analyze new chlorination methods—exploring greener approaches and identifying steps for more circular waste streams. Those improvements aren’t stories for annual reports—they make a tangible difference to the 2-chloropyridine arriving at your plant and the footprint it leaves behind.

    What Clients Say Seals the Deal

    We keep hearing that buyers want more than high assay and a COA—they want confidence, direct communication, and a partner who keeps their interests in sharp focus. With 2-chloropyridine, this means staying accessible not just during order placement, but through each step of shipment, and supporting technical teams post-delivery. Having talked through unexpected analytical blips, managed rush orders, and worked side-by-side through audit findings, we know trust builds batch by batch.

    Whether the end-use involves bringing a new active ingredient to market or supporting established product lines, every user stakes their own reputation on each drum and shipment. We don’t take that lightly. It’s not about slogans or abstract promises—it’s about safe, reliable chemistry, made possible by skilled hands, transparent dialogue, and a commitment to long-term results.

    Looking Forward: Responsible Chemistry, Real Impact

    The journey of 2-chloropyridine from our plant to your process sums up what responsible chemical manufacturing means. Every shipment reflects not just industry standards, but the day-to-day choices, expertise, and follow-through of people who care as much about your plant’s results as their own. With continued investment in process safety, sustainability, and technical partnership, we look forward to supporting your next challenge and every stage of production after that.

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