|
HS Code |
537234 |
| Name | Pyridine, 2,5-dichloro-3-methyl- |
| Cas Number | 35660-89-0 |
| Molecular Formula | C6H5Cl2N |
| Molecular Weight | 162.02 |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 220-222°C |
| Density | 1.31 g/cm3 |
| Synonyms | 2,5-Dichloro-3-methylpyridine |
| Pubchem Cid | 336808 |
| Smiles | CC1=C(N=CC(=C1)Cl)Cl |
| Inchi | InChI=1S/C6H5Cl2N/c1-4-5(7)2-3-9-6(4)8 |
| Solubility | Slightly soluble in water |
| Storage Conditions | Store in a cool, dry place |
As an accredited Pyridine, 2,5-dichloro-3-methyl- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Brown glass bottle, tightly sealed with screw cap, containing 100 grams. Labeled with chemical name, hazard symbols, and handling precautions. |
| Container Loading (20′ FCL) | 20′ FCL: Typically loaded with 160–170 drums (net 13–13.6 MT) of Pyridine, 2,5-dichloro-3-methyl-, securely packed. |
| Shipping | **Shipping Description for Pyridine, 2,5-dichloro-3-methyl-:** Pyridine, 2,5-dichloro-3-methyl- should be shipped in tightly sealed containers, protected from light, heat, and moisture. Comply with all applicable regulations for transporting hazardous chemicals, including proper labeling and documentation. Ensure secondary containment and utilize chemical-resistant packaging to prevent leaks. Only trained personnel should handle shipping and receiving. |
| Storage | **Pyridine, 2,5-dichloro-3-methyl-** should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers and acids. Avoid exposure to direct sunlight and moisture. Store separately from food and drink. Clearly label the storage area and ensure appropriate spill containment and fire safety measures are in place. |
| Shelf Life | Pyridine, 2,5-dichloro-3-methyl- typically has a shelf life of 2-3 years when stored in a cool, dry, airtight container. |
|
Purity 98%: Pyridine, 2,5-dichloro-3-methyl- with purity 98% is used in pharmaceutical intermediate synthesis, where high purity ensures efficient downstream reaction yields. Melting Point 65°C: Pyridine, 2,5-dichloro-3-methyl- with melting point 65°C is used in agrochemical formulation processes, where controlled phase behavior facilitates precise blending. Molecular Weight 178.02 g/mol: Pyridine, 2,5-dichloro-3-methyl- with molecular weight 178.02 g/mol is used in fine chemical manufacturing, where accurate mass enables stoichiometric accuracy in reactions. Low Water Content (<0.5%): Pyridine, 2,5-dichloro-3-methyl- with low water content (<0.5%) is used in anhydrous reactions, where minimal moisture prevents undesired hydrolysis. Stability Temperature up to 120°C: Pyridine, 2,5-dichloro-3-methyl- stable up to 120°C is used in high-temperature catalytic processes, where thermal stability maintains compound integrity. Particle Size <50 µm: Pyridine, 2,5-dichloro-3-methyl- with particle size less than 50 µm is used in solid dispersion applications, where fine particles enhance dissolution rates. Assay ≥99%: Pyridine, 2,5-dichloro-3-methyl- with assay ≥99% is used in laboratory analytical standards, where high assay guarantees quantification accuracy. Density 1.29 g/cm³: Pyridine, 2,5-dichloro-3-methyl- with density 1.29 g/cm³ is used in liquid chromatography applications, where precise density supports calibration consistency. |
Competitive Pyridine, 2,5-dichloro-3-methyl- prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: sales7@boxa-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Through years of working in chemical research and production, some compounds leave a stronger mark than others. Pyridine, 2,5-dichloro-3-methyl-, often recognized by its structural distinction—a pyridine ring carrying chlorine atoms at the second and fifth positions, plus a methyl group at the third—belongs to this select group. In the crowded field of specialty chemicals, it brings together subtle power and practical design, attractive to chemists and product developers who want both function and fine-tuned control.
Not every pyridine derivative is created equal. I’ve learned this lesson the hard way across different projects. Many chemicals share a basic scaffold, but even small modifications can swing a compound from inert to essential. The addition of chlorine atoms at the 2 and 5 positions, along with the methyl group at position 3, tunes this molecule's properties in several ways—impacting electron density, hydrophobicity, and overall reactivity.
These changes lead to altered boiling and melting points, along with distinctive solubility features that make or break a processing step in the lab or the plant floor. Product managers and bench chemists can confirm: running a reaction that calls for a particular substituted pyridine feels like looking for the right key for a lock. One wrong shift, and yields drop, purity suffers, or separation gets messy. In my experience, the 2,5-dichloro-3-methyl arrangement hits a sweet spot, offering both stability and a reactive edge for a range of downstream transformations.
Most datasheets offer dry measurements—purity percentages, melting points, refractive indices. The true test comes in use. The technical grade of Pyridine, 2,5-dichloro-3-methyl- offers clear, reliable purity, most often exceeding 98%. What catches my attention isn’t the number alone, it’s the consistent behavior across batches that stands out. For those who care about process robustness, that counts for more, especially when scale-up exposes hidden flaws in sourcing or manufacturing.
Specs like this reflect years of refinement. Chemists need predictable reactivity, not one-off results. The crystalline form presents manageable handling, while keeping loss to a minimum during transfer or storage. In my own lab days, the yellowish crystals went smoothly through filtration and drying, significantly cutting wasted effort and improving overall yield.
Many industrial chemists chase versatility, but I’ve always preferred reliability. Pyridine, 2,5-dichloro-3-methyl- delivers in the synthesis of higher-value intermediates, acting both as a building block and as a modulator of reactivity. Its unique substitution pattern shields reactive sites while steering functional group transformations—perfect for a process that needs selectivity, such as in pharmaceutical intermediate synthesis or agricultural research.
My own exposure to this molecule came during a project developing novel heterocyclic scaffolds for crop protection. In that setting, selectivity meant fewer byproducts, safer plant trials, and a smoother path through regulatory hurdles. In other projects, its resistance to hydrolysis supported complex multi-step syntheses, earning trust among teams looking to squeeze every drop of value from their materials budget.
There’s something almost reassuring about the predictability of reactions with Pyridine, 2,5-dichloro-3-methyl-. Reactions that suffer from side products with less-substituted pyridines often see cleaner conversion and higher selectivity. In medicinal chemistry, this translates to less material wasted on purification, while in material science, it paves the way for advanced polymers with unique thermal properties. Every lab worker with production quotas would appreciate how this efficiency turns into time saved and hassle avoided.
People often look at structural analogs and assume substituting one for another offers only incremental change. That view misses the point. In a real-world process, small changes ripple into major differences. For example, the dual chloro substitution on this compound blocks key positions on the pyridine ring, slowing down unwanted side reactions and providing a degree of chemical ‘armor’ in harsh conditions.
I’ve tested less-protected pyridines and run into faster degradation or low selectivity in reactions. With 2,5-dichloro-3-methyl-, these headaches fade. This is especially valuable in multistep organic syntheses, where cumulative side reactions can tank overall yield. The methyl group further modifies the compound’s electronic character, skewing selectivity in ways demanded by modern process chemistry.
There’s another practical angle. While some pyridine derivatives exhibit strong, unpleasant odors or hazardous volatility, the dichloro-methyl variant stands out for its relatively less aggressive profile. In a busy lab, this matters. Safer handling lessens both regulatory oversight and the day-to-day discomfort that comes with strong-smelling chemicals.
Talking about product virtues can sound hollow unless it shows up in the data. Over several years, researchers have published evidence of sharper yields and more efficient transformations when choosing this specific derivative. Journal articles and patent filings regularly reference the compound’s advantage in controlled functionalization of aromatic systems, especially in nitrogen-rich organic frameworks.
Environmental and safety records have flagged persistent worries with other halogenated pyridines—mainly due to volatility and byproduct formation. Here, controlled substitution patterns prove valuable, both limiting formation of hazardous byproducts and boosting the ‘atom economy’ of key reactions.
From the perspective of workplace safety, practical use has demonstrated fewer incidents of accidental release or exposure compared to more volatile analogues. I can recall one occasion where switching to Pyridine, 2,5-dichloro-3-methyl- resolved an ongoing issue with process vent odors, leading to smoother relations with plant operators and local environmental monitors. These small, daily impacts compound into strategic benefits, especially in regulated sectors like pharmaceuticals and crop sciences.
Conversations with colleagues often turn to choice: why pick one compound over another? Pyridine’s foundational structure offers flexibility, but 2,5-dichloro-3-methyl- stands apart for specific reasons. In scale-up settings, it brings turnover improvements, often shaving hours from downstream purification thanks to fewer byproducts. Anyone who’s managed a pilot plant knows: reliable product purity can turn a marginal project profitable.
Regulatory guidance increasingly presses firms to minimize environmental front-end waste and back-end emissions. With this compound, process heads gain leverage—fewer side reactions lead to cleaner waste streams, less time devoted to waste management, and greater odds of passing ever-tightening regulatory reviews. In today’s sustainability-minded world, an overlooked savings in waste costs can decide project viability.
Traceability and quality management have become non-negotiable. End users—especially in pharma and agrochemical sectors—need full records, from synthesis route to impurity profile. This is where reputation matters. Pyridine, 2,5-dichloro-3-methyl-, when sourced from trustworthy manufacturers, comes with batch records and analytical data that support transparent auditing.
From what I’ve seen, lot-to-lot consistency isn’t just a marketing promise; it’s born out in real-world use. Laboratories switching suppliers sometimes run headlong into delays caused by variable impurity profiles or unreliable physical properties. With this compound, consistent manufacturing protocols have removed these roadblocks for many teams—supporting both research continuity and downstream regulatory filing.
Of course, no product escapes limitations. Sourcing pyridine derivatives globally has become harder as regulatory pressures increase and supply chain shocks ripple through specialty chemical markets. To maintain quality, strong relationships with reliable partners matter more than ever. In my own work, partnering with suppliers committed to open quality reporting and third-party testing has prevented nasty surprises at critical project junctures.
Another challenge lies in the upcycling of halogenated aromatic waste. Industry-wide, there’s growing interest in chemical recycling and process intensification. Some teams are piloting closed-loop systems that capture and reuse spent pyridine derivatives, aiming to minimize raw material import and hazardous waste export. This isn’t just a feel-good measure—it’s now tied to permitting and public perception. Small improvements compound into long-term resilience.
Research establishments and process engineers have started integrating high-efficiency purification strategies, including advanced crystallization and membrane filtration, into the workflow for compounds like Pyridine, 2,5-dichloro-3-methyl-. These moves reduce solvent use and energy costs. The compound’s solid, manageable form supports these efforts—unlike sticky or highly soluble derivatives that challenge both containment and cleanup efforts.
Innovation in specialty chemicals increasingly focuses on greener routes, both for environmental benefit and for meeting corporate social goals. Chemists now scrutinize starting materials, solvents, and waste profiles with greater urgency. The adaptability of Pyridine, 2,5-dichloro-3-methyl- creates chances to redesign synthetic routes for fewer steps, higher yields, and reduced environmental risk.
Colleagues in process development report fewer air emissions and less solvent-intensive workups. A single compound that trims energy and water use can cascade through the entire value chain, from raw materials to end product. Even in multi-ton operations, these savings build up rapidly, directly contributing to a plant’s environmental balance sheet.
Some organic chemists are using this compound to develop catalysts and intermediates that actively minimize the use of heavy metals or hazardous reagents. By offering selectivity at crucial steps, Pyridine, 2,5-dichloro-3-methyl- acts as an enabling tool for those determined to shift from legacy chemistry to modern, cleaner platforms.
In the race to invent new materials, performance often trumps tradition. Labs tackling materials for electronics, sensors, or battery technologies are drawn to the tailored reactivity of derivatives like Pyridine, 2,5-dichloro-3-methyl-. Its influence can stabilize reactive intermediates or introduce functional groups unavailable through older reagents.
Some groups are exploring its integration into heteroaromatic frameworks for organic LEDs or advanced coatings. Again, the combination of chemical stability and manageable reactivity gives formulators tools to push performance while sidestepping unwanted surprises. There’s no silver bullet in advanced materials science, but a consistent, well-understood reagent like this one opens new doors.
Chemical manufacturing responds to more than theory; it needs dedication to safe, reliable, and cost-effective performance. As expectations for transparency and regulatory compliance tighten, only products standing up to this scrutiny earn sustained loyalty. My own experience has shown how labs and plants grow to depend on supply partners who take E-E-A-T values—experience, expertise, authority, trustworthiness—seriously. Pyridine, 2,5-dichloro-3-methyl- has proven its value in this changing landscape by combining technical performance with traceable provenance.
Discussions with industry veterans repeatedly highlight one message: the best compounds quietly solve problems rather than draw flash headlines. From experienced process chemists to regulatory leaders, the consensus is that dependable specialty chemicals are trusted partners on the path to innovation, scale-up, and compliance.
As I reflect on the past decade in specialty and fine chemicals manufacturing, one trend stands out: compounds with a proven balance of selectivity, reliability, and traceability continue to fuel breakthroughs in both established and emerging fields. Pyridine, 2,5-dichloro-3-methyl- isn’t just another name in a catalogue—it’s a tool for solving recurring challenges in synthesis, scaling, and compliance.
Those who work at the intersection of science, safety, and innovation need products without hidden pitfalls. This compound stands out in its ability to support consistent production and new discoveries. Its tailored molecular structure, proven handling advantages, and compatibility with modern regulatory and environmental needs give it an edge that persists even as the wider market churns with uncertainty and change.
Smart organizations invest in trustworthy partners and materials, building institutional memory and competitive advantage. Pyridine, 2,5-dichloro-3-methyl- has earned its spot in those plans, not just for what it does today, but for the doors it opens to tomorrow’s achievements.