|
HS Code |
587828 |
| Chemical Name | 2,3,5,6-Tetrachloropyridine |
| Molecular Formula | C5Cl4N |
| Molar Mass | 215.79 g/mol |
| Appearance | White to pale yellow crystalline solid |
| Melting Point | 143-146 °C |
| Boiling Point | 273 °C (estimated) |
| Density | 1.77 g/cm³ |
| Cas Number | 2402-77-9 |
| Solubility In Water | Low |
| Smiles | C1=C(C(=C(C(=N1)Cl)Cl)Cl)Cl |
As an accredited 2,3,5,6-tetrachlopyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 100 mL, tightly sealed, labeled with hazard warnings and chemical information, packed in a cushioned protective carton. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Typically transports 12–14 metric tons of 2,3,5,6-tetrachloropyridine, securely packed in sealed, approved drums or IBCs. |
| Shipping | 2,3,5,6-Tetrachloropyridine should be shipped in tightly sealed, chemical-resistant containers, clearly labeled with appropriate hazard warnings. It must be transported according to regulations for hazardous materials, kept away from heat and moisture, and accompanied by a Safety Data Sheet (SDS). Ensure compliance with local, national, and international shipping guidelines. |
| Storage | 2,3,5,6-Tetrachloropyridine should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers, acids, and bases. Protect from moisture and direct sunlight. Ensure appropriate labeling and restrict access to trained personnel. Use secondary containment to prevent environmental release in case of spills or leaks. |
| Shelf Life | 2,3,5,6-Tetrachloropyridine is stable under recommended storage conditions; store in a cool, dry, and well-sealed container. |
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Purity 99%: 2,3,5,6-tetrachlopyridine with 99% purity is used in pharmaceutical intermediate synthesis, where it ensures high product yield and process reliability. Melting point 87°C: 2,3,5,6-tetrachlopyridine with a melting point of 87°C is used in chemical reagent formulations, where it provides consistent melting characteristics for precise thermal control. Stability temperature 150°C: 2,3,5,6-tetrachlopyridine with stability up to 150°C is used in high-temperature catalytic processes, where it maintains chemical integrity under reaction conditions. Molecular weight 215.9 g/mol: 2,3,5,6-tetrachlopyridine of molecular weight 215.9 g/mol is used in agrochemical synthesis, where it facilitates accurate stoichiometric calculations for reaction balance. Low moisture content <0.2%: 2,3,5,6-tetrachlopyridine with moisture content below 0.2% is used in electronic material manufacturing, where it prevents hydrolysis and ensures product purity. Particle size <20 μm: 2,3,5,6-tetrachlopyridine with particle size below 20 μm is used in fine chemical blending, where it enables uniform dispersion and reactivity in composite materials. Viscosity grade 12 mPa·s: 2,3,5,6-tetrachlopyridine of viscosity grade 12 mPa·s is used in liquid formulation processes, where it enhances mixing efficiency and solution stability. |
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In the world of pyridine derivatives, the name 2,3,5,6-tetrachloropyridine pops up for good reason. As someone who has spent years following the chemical sector, I notice the difference it makes where purity and reliability matter. This compound carries four chlorine atoms bonded to a pyridine ring, which gives it unique reactivity. Its structure, C5Cl4N, might appear simple, but it’s built to serve industries that can’t compromise on standards.
You come across 2,3,5,6-tetrachloropyridine mostly in specialty synthesis labs and production lines for advanced materials. The chlorines on each side of the ring don’t just add complexity—they unlock reactions other, less substituted pyridines can’t manage. This means manufacturers who chase exceptional consistency lean on it to anchor synthesis paths or build blocks for agrochemicals and dye intermediates.
Talking about models might sound technical, but in practice, it shapes the outcomes in plant and lab processes. With 2,3,5,6-tetrachloropyridine, specifications such as chemical assay, melting point, and moisture content shape how well batches turn out under demanding conditions. High-purity (usually greater than 98%) grades keep unwanted reactions at bay. This isn’t just about ticking a box for quality. Those who’ve seen the fallout from impurities in expensive syntheses know contaminants amplify side reactions, blow up costs, and even grind product development to a halt.
Physical consistency also makes a difference—fine white to pale yellow crystals let users handle the material with less risk of clumping or uneven dosing. Throughout storage, stability factors like low moisture help keep each shipment reliable. These aren’t minor details. When a raw material turns unstable or arrives impure, downstream bottlenecks stack up, and timelines slip, which is the last thing any lab or factory manager wants.
You see 2,3,5,6-tetrachloropyridine show up in specialized corners of agriculture and chemical manufacturing. It often shows up as a key intermediate when companies target performance in pesticides or seed treatments. Take the synthesis of insecticides or herbicides—this pyridine derivative shuttles chlorine into molecular frameworks more efficiently than alternatives, cutting down overall processing time. Its role goes beyond agriculture, branching into pharmaceuticals as a step in multi-stage organic syntheses.
From my experience, companies value reliability in supply chains just as much as technical performance. Producers who stick with 2,3,5,6-tetrachloropyridine count on regularity in crystal morphology, solubility in target solvents, and minimal residual by-products. These aren't just boxes to check—they save chemists from unhappy surprises during complex reactions, especially those needing high selectivity or requiring purification at scale.
Experience in lab environments drives home how much small molecular tweaks change outcomes. Compare 2,3,5,6-tetrachloropyridine with other pyridines scattered with fewer or differently placed chlorine atoms. More heavily chlorinated compounds resist decomposition under typical reaction conditions. Pyridines with only two or three chlorines might work for simpler syntheses but often lack the reactivity needed for intricate pesticide or pharmaceutical applications.
Let’s look at alternatives like 2,6-dichloropyridine or derivatives with substitution at positions 3 and 4. Labs using those see different reaction rates, lower yields, or need extra steps to compensate for missing reactivity. Sometimes those extra steps mean more waste, extra solvent, and ultimately higher costs. In contrast, the tetra-chlorinated version allows for direct transformations that sidestep the heavy cleanup or additional catalysts. As a result, project managers and procurement teams often show a preference for this more versatile and potent intermediate.
In this age, given tighter global scrutiny over chemicals and their effects on the environment, selection of raw materials like 2,3,5,6-tetrachloropyridine is tied up in sustainability conversations. High-purity grades help minimize the formation of hazardous by-products, which resonates with efforts to meet regulatory and safety goals. Laboratories and manufacturers reducing process waste appreciate how the compound's structure limits off-target reactions, making end-of-line purification less of a headache.
Some regulatory bodies flag halogenated organics for careful handling and disposal. The responsible producer or chemical user works within frameworks that safeguard worker health and the environment. I have seen factories develop closed-loop containment systems and air scrubbing technologies, not just for compliance but to build reputations for corporate responsibility. With materials like this, it’s not just about what goes right during synthesis—it’s about closing the loop so nothing dangerous escapes unchecked.
Demand for 2,3,5,6-tetrachloropyridine sees swings that reflect broader shifts in crop protection, material science, and even regulatory landscapes. Supply chain planning asks companies to source stable supplies from reliable partners. Shortages or logistical delays highlight the value of consistent grade and lead times. Having seen the difficulties manufacturers face when shipments stall, I know how important it is to form long-term partnerships with vetted suppliers.
The best suppliers back their product quality with transparent assay results, clear batch records, and open communication. From plant managers to logistics coordinators, peace of mind grows when they know shipments will show up as promised, batch after batch. Inconsistent deliveries and surprise impurities don’t just spoil production—they erode trust in the entire procurement chain.
Stepping into the research side, you note how creativity meets chemical reality when using unique pyridine derivatives. Chemists eager to push reaction frontiers value how this molecule enables coupling reactions and complex functionalizations—not just in agrochemicals, but in active ingredient discovery for everything from dyes to advanced polymers.
Research teams lean into the specialty area of halogenated pyridines for transforming precursor molecules in fewer steps, saving time and reducing costs. Experiences from collaborative R&D projects show repeatedly how this shortcutting means less solvent use and lower emissions. In a world where “green chemistry” means not just eco-friendly buzz but real bottom-line impact, the importance of advanced intermediates like 2,3,5,6-tetrachloropyridine comes through.
Real-world industrial use never goes exactly by the textbook. Some users mention storage and handling concerns—the compound’s dust can irritate if mishandled, and moisture exposure can create risks for both quality and safety. Solutions here often revolve around airtight packaging and well-calibrated workplace ventilation. This isn’t just regulatory advice—there are stories of lost batches and unplanned shutdowns that drive home the value of managing simple risks up front.
On the supply side, international shipping and customs occasionally trip up shipments of halogenated chemicals due to heightened scrutiny. Direct engagement with freight specialists and pre-clearance of regulatory paperwork fixes most of these snags. Buyers who develop close working ties with customs brokers find fewer surprises and keep their operations running smoothly.
Those labs and factories making the most of 2,3,5,6-tetrachloropyridine keep data at their fingertips. Each batch comes with certificates of analysis, and teams cross-check melting points, purity, and related chemical identifiers at intake. More sophisticated operations go further, running their own HPLC and NMR to double-check batches before production. In my experience, this additional scrutiny up front pays for itself by catching any inconsistencies before they cause real trouble downstream.
Modern production lines also rely on digital workflow tracking, linking every raw material used back to the supplier, lot number, and date of delivery. Not only does this streamline troubleshooting, it builds resilience into the company’s quality assurance system. With more regulatory and customer audits than ever before, this digital backbone keeps compliance sharp and demonstrates a real-world commitment to safety and transparency.
Looking forward, the continued demand for higher-performance materials, targeted crop protection agents, and more sophisticated pharmaceuticals hints at a stable or growing need for well-characterized intermediates like 2,3,5,6-tetrachloropyridine. As companies shift toward more efficient catalytic processes, the need to start from upstream intermediates with high reactivity—rather than pushing each synthesis through long, wasteful sequences—will only rise.
There’s also growing attention on recycling and reclaiming halogenated raw materials. Forward-thinking chemical producers look for partners who help close the loop by reclaiming unused or off-spec product, minimizing landfill and incinerator loads. Some labs working on next-generation recycling technologies incorporate this compound into test suites, aiming to find breakpoints where reusability and environmental safety overlap.
Storage guidelines and workplace safety matter where volumes of 2,3,5,6-tetrachloropyridine accumulate. Experience teaches that investing in dedicated, labeled storage with good ventilation stops small mishaps from turning into emergencies. Employee education and clear access to safety data sheets keep incidents low and morale high.
During transport, chemical logistics teams pack the compound in robust, sealed containers that resist leaks and accidental contact. Trained personnel oversee transfer points, and credible logistics partners track the material every step from warehouse to loading dock. Customers who invest in hazard communication programs not only meet obligations under regulatory rules—they show up as reliable partners for staff, inspectors, and neighbors alike.
Over the last decade, global emphasis on sustainable production has reshaped the priority list for sector leaders. Academics, industrial chemists, and materials scientists increasingly look for new ways to harness 2,3,5,6-tetrachloropyridine without generating long-lived pollutants. The growth of “benign-by-design” chemistry means more discussions about picking the right intermediates early in the R&D process.
Given the complexity of modern chemical production, it's clear to me that demand will reward those who pair technical knowledge with responsible sourcing and process transparency. Manufacturers who adopt continuous monitoring, partner with reputable suppliers, and keep their process data open gain not just market share, but respect among peers and regulators as well.
Some of the best improvements emerge when end users share feedback up the supply chain. Chemists in the lab and operators on the floor report back on handling quirks, unexpected side reactions, or questions about storage. The smartest suppliers treat this feedback as a resource that improves not only their product, but the reliability and safety of industry as a whole.
This two-way street builds a broader foundation of trust in the value and reliability of 2,3,5,6-tetrachloropyridine. It’s a story that’s grown as more global producers compete by raising the bar for documentation, openness, and speed of communication. In that way, this compound stands out not just for its unique chemistry but also for the way it ties together technical excellence and practical responsibility.
After years of watching the ups and downs of the specialty chemicals market, my takeaway is simple: products like 2,3,5,6-tetrachloropyridine keep earning their spot because they perform reliably while fitting into today’s responsible production landscape. From advanced agrochemical synthesis to pharmaceutical lead discovery, it enables work that moves industries forward.
The evolution of regulatory standards, demand for greener workflows, and the need for ever-greater consistency all shape the future of such powerful building blocks. An investment in transparency and partnership up and down the chemical supply chain will keep this compound relevant and valuable for years to come.
