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HS Code |
454635 |
| Cas Number | 2646-90-4 |
| Molecular Formula | C5H3Cl2N |
| Molecular Weight | 148.99 g/mol |
| Appearance | White to pale yellow solid |
| Melting Point | 55-58 °C |
| Boiling Point | 220-223 °C |
| Density | 1.39 g/cm3 |
| Solubility In Water | Slightly soluble |
| Purity | Typically ≥ 98% |
| Flash Point | 97 °C |
| Iupac Name | 2,4-dichloropyridine |
| Synonyms | 2,4-DCPy; Pyridine, 2,4-dichloro- |
| Refractive Index | 1.588 (20 °C) |
| Storage Temperature | Store at room temperature |
| Hazard Statements | Harmful if swallowed or inhaled |
As an accredited 2,4-Dichloropyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 2,4-Dichloropyridine is supplied in a 100g amber glass bottle with a secure screw cap and protective outer packaging. |
| Shipping | 2,4-Dichloropyridine is shipped in sealed, chemical-resistant containers designed to prevent leakage and exposure. Packaging complies with relevant transportation regulations for hazardous materials, including appropriate labeling and documentation. It should be stored and transported in a cool, dry, and well-ventilated area, away from incompatible substances and sources of ignition. |
| Storage | 2,4-Dichloropyridine should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from moisture, heat sources, and direct sunlight. It must be kept away from incompatible materials such as strong oxidizers and acids. Appropriate chemical labeling and secure shelving are recommended, and access should be restricted to trained personnel wearing suitable protective equipment. |
Applications of 2,4-Dichloropyridine in Industrial Manufacturing2,4-Dichloropyridine serves as a critical intermediate in several high-value synthesis routes for regulated industries. We supply this material to downstream partners who require precise compliance with industry standards, defined formulation ratios, and reproducible process performance. Explore these main application scenarios in large-scale industrial and specialty manufacturing. 1. Agrochemical Intermediate for Herbicide SynthesisMajor agrochemical producers use 2,4-Dichloropyridine as a building block in the synthesis of key herbicidal active ingredients such as oxyfluorfen and pyridine-based selective herbicides. This compound supports specific chlorination steps in multi-stage processes. Quality consistency and strict compliance underpin formulations for licensed crop protection solutions in several geographies. Producers use our material to meet stringent import, usage, and residue standards for downstream products distributed globally. Industry compliance standards
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2. Pharmaceutical Intermediate for Antiviral API SynthesisOur material finds critical use in cGMP production environments for APIs such as abacavir and other pyridine-derived antivirals. It enables selective halogenation during the formation of functionalized pyridines, which undergo subsequent amination and heterocyclic ring closure. Batch documentation and impurity control remain essential throughout each stage, with consistent sourcing documentation for DMF registration and global regulatory inspection. Industry compliance standards
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3. Dye and Pigment Manufacturing for Electronics and CoatingsHigh-purity 2,4-Dichloropyridine supports advanced organic dye production for use in electronics displays, specialty coatings, and printing industries. Manufacturers utilize its dichloropyridine structure to incorporate electron-withdrawing groups into complex chromophores, affecting hue and performance in OLED displays or heat-resistant pigments. QC and trace-metal limits safeguard product consistency required for high-end markets. Industry compliance standards
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4. Synthesis of Specialty Pyridine Derivatives for Chemical ManufacturingMajor chemical firms use this intermediate to develop advanced pyridine derivatives for application in catalysis, polymerization processes, and other specialty synthesis environments. Controlled reactivity and defined impurity profiles allow end users to maintain both reaction selectivity and downstream product purity. Careful raw material documentation and process-specific QC support integration in proprietary, registered chemical processes. Industry compliance standards
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Working every day in chemical production, certain compounds draw a lingering respect for their reliability and unassuming versatility. 2,4-Dichloropyridine is one of those. Over the years, I’ve seen this molecule come off the line in tons, its pale crystals offering a marked aroma that signals purity, precision, and the start of something useful for countless customers. Here at our facility, every batch reflects hands-on care, and the difference shows not just in its appearance but in its hard-working consistency.
Manufacturing 2,4-Dichloropyridine means more than blending chemicals. Production demands a strict sequence of control steps, starting with carefully chosen pyridine derivatives. Chlorination proceeds under expertly managed temperatures, because uncontrolled heat not only ruins selectivity but also creates wastes, which complicate downstream purification. Each portion is sampled and tested right there in the plant to prevent costly surprises. Final product passes through specialized filtration and drying systems that remove trace residues, preserving the fine crystal form.
Purity checks aren’t an afterthought. They define every run. GC, HPLC, and NMR testing standards have gotten tougher over the years. In our line, we regularly see purities above 99%. That isn’t marketing—it's what we require before a kilo leaves our warehouse. For those in custom synthesis or pharmaceutical intermediates, these numbers matter every time you scale up.
Many customers ask what sets our 2,4-Dichloropyridine apart from others. Beyond a certificate’s numbers, the feel of the crystals and the lack of off-odor always spark interest. Sophisticated users recognize purity by smell and appearance. Sluggish reactions, unexpected color changes, and filtration headaches usually trace back to overlooked impurities. Each gram produced here comes from processes we have refined step-by-step. We keep water content to a minimum, knowing that extra moisture can compromise storage stability, especially for users who need consistent dosing or reproducibility in research-scale synthesis.
We also understand logistics matter. Bulk users prefer packaging that suits their workflow. Our process team has experimented with different containers to maintain the product's integrity. Moisture uptake and static charge threaten quality, so packaging gets reevaluated with each season’s humidity swing. Learning directly from customer feedback, we moved away from conventional bags to lined fiber drums for export orders, shielding the product from transportation whims.
2,4-Dichloropyridine doesn’t sell itself on flash; rather, it wins trust through reliability. Agrochemical formulators rely on its stability when synthesizing complex molecules. One misstep in the intermediate phase, one impurity at the starting gate, and half a year’s development effort gets lost. On our lines, we see shipments head to active pharmaceutical ingredient makers, where they transform into central nervous system drugs, fungicides, or anti-cancer agents. University research groups call out for consistency too, especially when projects hinge on replicable data.
Some see this molecule as a stepping stone, but I’ve known veteran chemists who insist on 2,4-Dichloropyridine for exploring new heterocyclic chemistry. In our own pilot projects, it has helped build libraries of pyridine-based compounds for catalysis or material science trials. Each modification—from introducing electron-withdrawing groups to handling cross-couplings—demands starting material that’s chemically predictable. We manufacture with those post-synthesis transformations in mind.
Every customer brings a new twist to specification requirements. Instead of relying on catch-all specifications, we spend hours understanding why one process technician wants slightly lower chloride content, or why another lab insists on trace metal screening well below industry average. For higher grade applications, we listen closely to solvent residue needs. Some users require explicit low levels of DMF, methanol, or toluene, depending on their regulatory or downstream process.
Customized specification requests translate into longer lead times and more rounds of QA. However, the gratitude from experienced chemists—who have struggled with unpredictable intermediates—validates this extra work. Technically, our base specification stays practical: appearance as pale crystalline solid, assay at minimum 99%, melting point within a narrow range for lot traceability, moisture content below 0.5%, and targeted residual solvent profiles. We verify chloride content, iron, and heavy metals for customers running critical pharmaceutical synthesis. Many have told us that these detailed specs saved them from failed batches.
Our plant team keeps these specifications transparent, not hidden behind sales claims. Visitors from partner companies often tour our labs, curious about sampling, mixing, and packaging, and leave confident in our processes. We believe openness builds trust that no paperwork can replace, especially when the stakes involve multi-million-dollar projects.
Making 2,4-Dichloropyridine in quantity exposes every weakness. Small flask syntheses serve as proof-of-concept, but they hide issues like exothermic control, mixing efficiency, and separation scale. Scaling up demands teamwork: engineers, safety personnel, and analytical chemists each play a part. We learned early that efficient heat exchangers and precise dosing make or break batch consistency, and holding times determine how well traces get purged.
Failures in the early days taught us hard lessons. Product with just a bit too much pyridine impurity fouled downstream filters. Subtle excess of chlorine in the raw material led to dangerous chlorinated byproducts. Each problem drove us to adjust not just the “recipe” but the habits of everyone involved. Our best batches rarely come from textbook methods—they result from patient, steady adjustments. Over time, truly reliable production comes from understanding these routines inside and out.
Comparing 2,4-Dichloropyridine to other chlorinated pyridines or isomeric compounds sheds light on why it stands out for certain syntheses. The 2 and 4 positions on the ring direct reactivity, making it less reactive than the 3,5-derivative but more selective for nucleophilic substitution. Organic chemists, working on large or small scale, know that poor selectivity leads to impure targets or expensive purifications. By offering this material with rigorously controlled isomer content, we support formations of intermediates that can't tolerate cross-reactions.
We frequently distinguish 2,4- from 2,6-Dichloropyridine at our customers’ request. The difference looks minor on paper; in the plant or in the lab, the impact is major. 2,6 is more prone to hydrolysis and less predictable for certain couplings. Meanwhile, our 2,4-Dichloropyridine persists through tough conditions, fits more smoothly into alkylation schemes, and introduces fewer chromatographic headaches.
Those working with 3,4- or mono-chlorinated pyridines often report batch variability or limited application range, usually because these compounds don’t offer the same substitution pattern. Feedback tells us again and again that predictable reactivity greatly outweighs any marginal price difference. We watch market trends, yet our core customers return for reliability, not for the illusion of novelty.
Years of handling chlorinated pyridine derivatives builds a healthy appreciation for risk management. Our staff receives regular hazard training beyond minimum requirements. Knowing the volatility of pyridine by sensory memory, seasoned workers are quick to notice anything off. We enforce proper PPE, stringent ventilation, and spill cleanup procedures, even if it takes extra minutes at shift change.
Each kilogram is produced alongside full effluent capture and treatment, and process water passes through a closed-loop system before re-entry to public lines. Environmental rules constantly evolve, but we plan long-term capital improvements to stay well ahead of local and national requirements. Our byproducts and spent solvents go through external recovery or destruction processes, keeping the site both compliant and responsible.
Customers often ask about safe storage and handling. We advise using inert, sealed containers kept away from light and heat, not just out of regulatory habit but from years of seeing what happens when shortcuts get taken. On export, we make sure all paperwork matches shipping standards adopted by authorities worldwide, including accurate UN classification.
Our process engineers work directly with large-scale users, sometimes adjusting reaction parameters for specific bulk orders. In one memorable case, a major client in specialty pharmaceuticals hit yield issues due to residual water content. By modifying our drying stage and running extra Karl Fischer titrations, we helped boost their conversion rate by double digits. Direct dialogue with the end user, rather than filtered marketing promises, solves practical problems.
Academic partners bring their own challenges. One university group needed highly specific trace analysis due to catalyst sensitivity—levels beyond standard commercial grades. We collaborated with them, running several pilot lots under their protocols, to deliver product that held up to the demands of their work. Seeing resulting publications cite our raw material as critical to their findings makes those extra steps worthwhile.
Market volatility reaches everyone, but stability in manufacturing pays off over years, not months. We manage raw material contracts ahead, insulating our output from sudden shortages that disrupt traders and short-term players. We also invest in maintenance and periodic upgrades, even during slow quarters, to maintain steady production rates.
Customers often return not just for quality, but for predictability in shipments, responsiveness on documentation, and honest problem-solving when challenges arise. Our logistics team tracks deliveries in real-time, proactively alerting buyers if weather or customs hinders a container. Through direct supply relationships, we avoid the quality drift that's common with relabeled or resold materials. This matters particularly for repeat users in regulated markets, who need every lot to match exactly what validation batches used.
Unlike catalogue sellers, our staff spends every shift surrounded by the actual product, measuring, blending, and packaging the material with their own hands. The result is a tangible bond with the compound and those who rely on it further down the line. Each label on a drum leaves the plant only after passing multiple sets of eyes and instruments—our signatures mean something in-house and out.
The world of chemical manufacturing has seen shortcuts and hype, but there is no substitute for time in the plant and learning from what works—on the floor, not just in the office. By standing behind each kilogram, our team shapes a relationship of trust with customers who depend on true consistency. Whether heading for a stirred 2,000-liter reactor or a 250-milliliter flask, that product carries our collective experience, ready to help turn ambitious projects into finished goods.
Innovation doesn’t always mean wild new ideas. In our case, it shows up as tiny improvements: a tweak in recrystallization, a more robust analytical method, or feedback-driven changes in packaging. We keep an open channel with partners who use 2,4-Dichloropyridine to drive their own innovation, matching their needs with adjustments in our process.
Regulations, application areas, and purity benchmarks keep changing. We invest in in-house research to push limits, reduce environmental impact, and streamline our quality systems. At the same time, we insist on accuracy over fast talk or overpromising. Customers rely on us because they know they can call and get a person who knows their order and the line it came from.
From development to delivery, our approach to 2,4-Dichloropyridine stays grounded in the day-to-day realities of chemical manufacturing. It’s more than a chemical—it’s a responsibility carried by those who understand how much quality matters at every scale. As the industry grows and diversifies, we stay ready, adapting with practiced skills and a commitment to truth in every drum we ship.