|
HS Code |
915707 |
| Cas Number | 69045-84-7 |
| Molecular Formula | C6H5Cl2N |
| Molecular Weight | 162.02 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Purity | Typically ≥98% |
| Boiling Point | 213-215 °C |
| Density | 1.322 g/cm³ at 25°C |
| Solubility | Slightly soluble in water, soluble in organic solvents |
| Refractive Index | 1.543 (approximate) |
| Flash Point | 95 °C |
| Synonyms | 2,5-Dichloro-3-picoline |
As an accredited 2,5-Dichloro-3-methylpyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The chemical, 2,5-Dichloro-3-methylpyridine, is packaged in a 100g amber glass bottle with a secure, tamper-evident cap. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): 14 metric tons packed in 250 kg net HDPE drums, securely stacked and palletized for safe transport. |
| Shipping | 2,5-Dichloro-3-methylpyridine is shipped in tightly sealed containers, compliant with hazardous chemical transport regulations. It should be labeled as a harmful and potentially irritant substance. Shipping requires cool, dry conditions, and protection from moisture and sunlight. Packaging must prevent leaks, with handling precautions for safety during transport and storage. |
| Storage | 2,5-Dichloro-3-methylpyridine should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Protect from direct sunlight and sources of ignition. Keep container away from moisture and store at room temperature. Ensure proper labeling and use appropriate secondary containment to prevent leaks or spills. |
| Shelf Life | 2,5-Dichloro-3-methylpyridine is stable under recommended storage conditions; typically, its shelf life exceeds 2 years in tightly sealed containers. |
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Purity 98%: 2,5-Dichloro-3-methylpyridine with a purity of 98% is used in pharmaceutical intermediate synthesis, where it ensures high-yield production of target compounds. Melting Point 65°C: 2,5-Dichloro-3-methylpyridine with a melting point of 65°C is used in fine chemical manufacturing, where it enables controlled melting and uniform mixing in reactions. Molecular Weight 164.01 g/mol: 2,5-Dichloro-3-methylpyridine at a molecular weight of 164.01 g/mol is used in agrochemical development, where it allows precise formulation and dosing. Particle Size <50 μm: 2,5-Dichloro-3-methylpyridine with particle size less than 50 μm is used in catalyst preparation, where it provides enhanced surface area and reactivity. Stability Temperature 120°C: 2,5-Dichloro-3-methylpyridine stable up to 120°C is used in high-temperature synthesis processes, where it maintains chemical integrity and performance. Water Content <0.5%: 2,5-Dichloro-3-methylpyridine with water content less than 0.5% is used in moisture-sensitive organic reactions, where it prevents hydrolysis and unwanted side reactions. Insoluble Residue <0.1%: 2,5-Dichloro-3-methylpyridine with insoluble residue below 0.1% is used in electronic material fabrication, where it ensures purity and defect-free products. Refractive Index 1.578: 2,5-Dichloro-3-methylpyridine with a refractive index of 1.578 is used in optical material synthesis, where it allows for precise control of product optical properties. Density 1.30 g/cm³: 2,5-Dichloro-3-methylpyridine at a density of 1.30 g/cm³ is used in formulation of specialty polymers, where it delivers uniform distribution and blending. Assay by GC 99%: 2,5-Dichloro-3-methylpyridine with GC assay of 99% is used in analytical chemistry research, where it achieves reliable and consistent experimental outcomes. |
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In the world of specialty chemicals, 2,5-Dichloro-3-methylpyridine has steadily become a name recognized by chemists and manufacturers who demand precision in their tools. The molecule carries a pyridine ring dotted with two chlorine atoms at the 2 and 5 positions and a methyl group holding its place at the 3 position. This subtle yet impactful arrangement draws attention from those who understand the value of atom placement, where minor adjustments can spark major differences in function and compatibility. A little structural twist creates distinct capabilities compared to close cousins in the chloropyridine family.
Purity plays a huge part in the performance of any chemical, and this compound usually arrives exceeding the 98% mark when sourced from reputable suppliers. That kind of specification does more than satisfy requirements on a certificate — it gives real assurances out on the plant floor or in the lab. Boiling point generally clocks in above 200°C, which means it holds up well under processes involving heat. It also shows a moderate solubility in organic solvents, making it easier to handle in production settings. While these numbers may look routine on paper, chemists know firsthand how critical they become the moment an unexpected impurity crops up or a reaction pathway clogs.
Pharmaceutical research and agrochemical development rely on pyridine derivatives for diverse projects, with each substituent shifting reactivity in ways only experience can reveal. 2,5-Dichloro-3-methylpyridine joins this group as an essential intermediate, helping forge building blocks for actives and specialty fine chemicals. In my own time working alongside organic chemists, I watched the way molecular tailoring often dictates the yield and purity of downstream products. With two chlorines off the pyridine ring, this molecule helps enhance selectivity during alkylation or cross-coupling steps. Not every seasonal batch of crops owes its success to this compound, but in the hands of agrochemical innovators, it enables advanced molecules to take shape, forming the backbone for new herbicides or fungicides.
Walk down the aisle of any chemical catalog, and you'll run into more than a few chlorinated pyridines. The small differences between 2,5-Dichloro-3-methylpyridine and something like 2,6-dichloropyridine or 3,5-dichloro-2-methylpyridine may appear subtle, but experienced chemists have learned these aren't variations to brush off. The position of each methyl and chlorine atom plays a role in physicochemical properties and the way the molecule interacts in downstream chemistry. For instance, shifting a chlorine even by a single carbon can make coupling dramatically harder, or, for another process, a lesser compound can yield lower selectivity and more side products. So the practical differences often come out in less waste and fewer purification headaches, which is a story not told in any standard list of properties.
Quality in chemicals doesn’t just reflect on paperwork — it shows up in product yields, environmental burden, and costs. Anyone who's run an industrial reaction line knows that a slightly “off” batch can gum up the works, gum up not just the chemistry but everything downstream. With 2,5-Dichloro-3-methylpyridine, validated suppliers have earned trust by keeping impurities in check, managing moisture, and following good manufacturing practices. Production batches turning up with under-controlled processes have historically created major setbacks. Fixing that starts with routine, often tedious, raw material testing, yet these habits end up saving time and money by heading off bigger headaches, regulatory scrutiny, or waste disposal challenges.
Every chemical has quirks and demands respect in handling. From the moment a drum carries the handwritten label "2,5-Dichloro-3-methylpyridine," lab techs and warehouse managers know the playbook — keep it sealed, dry, and out of reach of incompatible agents. Not all chemicals are the same, but anyone who’s ever lost inventory to humidity can appreciate what it means to observe basic storage discipline. Routine documentation and periodic inspections help make sure nothing slips through the cracks and that batches aged beyond recommended timeframes don’t accidentally end up in production.
Factories and laboratories never treat organic chlorides lightly. 2,5-Dichloro-3-methylpyridine gives off a pungent odor, reminding handlers to use proper ventilation and protective equipment. Gloves, goggles, and secure transfer protocols are practical realities, not just boilerplate recommendations. Experience has shown that cutting corners in personal protective gear can result in avoidable exposures. Even though the material poses low acute toxicity in the quantities typically used for synthesis, respecting all chemical safety standards means fewer incidents and better long-term health for everyone involved.
Modern manufacturing pushes for sustainability, and specialty intermediates face scrutiny over both production and downstream environmental impact. 2,5-Dichloro-3-methylpyridine doesn’t escape these demands. Sodium or potassium-based neutralizations often produce halogenated waste, which must be captured and disposed of according to environmental standards. The move to “greener” processes in recent years encourages companies to design reactions that generate less by-product. Some innovations look at reusing spent materials or recovering solvents for multiple cycles. While perfect circularity isn’t here yet, small improvements in yield, storage longevity, and purity help drive down waste at every stage.
Greater visibility into sourcing, production processes, and distribution has become a non-negotiable in today’s chemical supply chains. Recent years have brought renewed attention to traceability, not just for regulatory compliance but for the growing number of buyers who demand more than a commodity shipment. For 2,5-Dichloro-3-methylpyridine, reputable suppliers maintain tightly controlled production logs and batch tracking, reflecting a commitment to traceability that can catch potential quality issues before they become a problem. This focus on openness helps buyers build confidence in long-term supply arrangements, which matters deeply when trying to scale novel products or maintain continuous operations.
Moving beyond routine applications, this compound has a place in the frontiers of R&D. The last decade saw remarkable progress in the fine-tuning of new pharmaceutical agents and sustainability-oriented agrochemicals. At each stage, real-world feedback cycles between development teams and chemical suppliers make or break successful projects. 2,5-Dichloro-3-methylpyridine enables efficient cross-coupling reactions required to build complex molecular scaffolds, which underlie the latest breakthroughs. My own experiences watching these collaborative partnerships reinforce the importance of open dialogue and iterative improvement in the way intermediates are sourced and adapted for new requirements.
Recent fluctuations in raw materials, geopolitical disruptions, and regulatory changes have shown how fragile some chemical supply chains can be. In the face of those pressure points, securing a steady supply of essential intermediates like this pyridine derivative becomes a top priority. Some companies confront challenges by diversifying their approved sources, keeping emergency stockpiles, or qualifying alternative grades. Others seek domestic or regional partners to hedge against long import lead times or shifting export controls. All these strategies reflect a simple reality I have seen firsthand: reliability rarely comes from a single contract or handshake. Instead, it grows out of careful relationship-building and mutual recognition of the value in consistency.
For many who have spent years in the chemical industry, molecules like 2,5-Dichloro-3-methylpyridine aren’t abstract lines on a process map — they represent the collective effort of R&D specialists, production workers, supply chain teams, and safety officers. Conversations at the loading dock or during a late-night troubleshooting call can surface overlooked challenges or fresh solutions. Every time a batch is synthesized, tested, packed, and shipped, a whole network of people stand behind that product. That embedded knowledge and shared hands-on experience bring improvements that no algorithm or flowchart can match. Businesses relying on fine chemicals build relationships with people, not just ordering systems.
As chemical applications grow more demanding, so too do expectations on quality control and documentation. For a compound like 2,5-Dichloro-3-methylpyridine, feedback tends to travel quickly — both good and bad. If a batch performs well, project timelines get shorter and costs drop. If not, it becomes a teaching moment, prompting more robust process validation or tighter analytical controls. Over time, patterns emerge, and best practices get shared across teams and even competing organizations. That exchange of lessons learned pushes the whole sector forward. Top labs today not only run internal checks but also benchmark suppliers using a transparent scorecard of metrics based on real-world utility.
Shifting demand cycles, feedstock prices, and global logistics all play a part in setting market value. Buyers at small labs and large companies alike keep a close watch on availability and cost fluctuations. There’s an ongoing tension between wanting stable, predictable pricing and the unpredictable swings that come from changes upstream, such as halogen feedstock shortages or regulatory shifts. Some experienced buyers hedge risks by entering into long-term agreements, while others remain flexible, moving between vendors to chase value or fill gaps during supply crunches. Transparent communication on both sides, paired with agile inventory management, minimizes disruptions so that one hiccup in production doesn’t ripple through to finished goods for months.
Environmental protections, worker safety standards, and new import rules have reshaped how specialty chemicals move through the global marketplace. 2,5-Dichloro-3-methylpyridine is no exception, with increased documentation requirements and stricter controls on hazardous elements resulting in an even higher administrative load. Adapting to evolving compliance frameworks depends less on any single regulatory expert and more on a company’s culture of responsibility. Staying up-to-date means investing in training, compliance software, and internal audits. Some organizations take a proactive stance, lobbying for reasonable standards or assisting regulators in crafting rules that reflect ground realities. There’s a growing realization that chasing short-term cost savings by skirting regulations almost always backfires in the end.
Feedback loops between suppliers and end users have changed the way intermediate chemicals are marketed and refined. Instead of a one-way transaction, ongoing conversations help tailor product grades, improve packaging, and ensure compatibility with new process technologies. A manufacturer’s willingness to tweak specifications or undertake batch customization sometimes spells the difference between a successful launch and months of troubleshooting. Direct user input also inspires innovations in container design, labeling, or even supplier dashboards where buyers track quality statistics and documentation. All these adjustments help foster loyalty, increase transparency, and demonstrate a shared commitment to problem-solving in a competitive industry.
New generations of chemists and technicians benefit from effective mentoring and clear documentation practices. Sharing not just the theory, but the collected wisdom on handling and troubleshooting products like 2,5-Dichloro-3-methylpyridine leads to safer workspaces and fewer production interruptions. Training courses today lean on practical cases drawn from day-to-day operations, reinforcing the fact that the smallest oversight can have outsized consequences. Outreach through professional associations, online webinars, or collaborative research projects creates more inclusive, informed communities. Industry veterans know that it only takes one shared close-call story to change an organization’s mindset about safety or quality.
Emerging green chemistry approaches set the stage for shifts in how 2,5-Dichloro-3-methylpyridine gets produced and used. Firms are exploring ways to reduce energy intensity, cut water usage, and reclaim by-products as valuable side streams instead of waste. Partnerships between academic labs and industry players accelerate innovation, finding practical routes to phase out hazardous reagents or eliminate persistent organic contaminants. In this climate, suppliers willing to invest in next-generation processes and support thorough life cycle analysis stand apart.
Reliable supply of specialty chemicals requires teamwork between suppliers and buyers, regulators and innovators. Resilience grows out of transparent exchanges, commitments to long-term quality, and readiness to adapt in the face of change. Product managers who have spent time in manufacturing or R&D know the long hours and tough choices that go into every tank, drum, or flask shipped. Their decision-making reflects not just economic logic but a duty to colleagues, customers, and communities who depend on safe and consistent access to critical building blocks.
The story of 2,5-Dichloro-3-methylpyridine is not just about atoms and bonds — it’s about people striving for greater reliability, environmental stewardship, and innovation. Every successful application serves as proof of diligent attention to quality, thoughtful sourcing, and practical stewardship. Ongoing conversations, rooted in shared experiences and real-world lessons, keep the industry moving forward. Whether in the lab, plant, or boardroom, addressing the challenges and opportunities presented by specialty chemicals like this one relies on continuous improvement and a shared sense of responsibility spanning every link in the chain.