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HS Code |
869272 |
| Name | 2,4-Diphenylpyridine |
| Cas Number | 21398-28-3 |
| Molecular Formula | C17H13N |
| Molecular Weight | 231.29 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 166-169 °C |
| Solubility | Slightly soluble in organic solvents |
| Density | 1.155 g/cm³ (calculated) |
| Smiles | C1=CC=C(C=C1)C2=CC(=NC=C2)C3=CC=CC=C3 |
| Inchi | InChI=1S/C17H13N/c1-3-7-13(8-4-1)16-12-14(10-11-18-16)15-9-5-2-6-17(15)13/h1-12H |
| Pubchem Cid | 3444774 |
As an accredited 2,4-Diphenylpyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 2,4-Diphenylpyridine is supplied in a 25g amber glass bottle with a secure screw cap and detailed product labeling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for 2,4-Diphenylpyridine: Typically packed in 25kg fiber drums, totaling around 8-10 metric tons per 20′ FCL. |
| Shipping | 2,4-Diphenylpyridine is shipped in tightly sealed containers to prevent moisture or contamination. It is typically packaged in amber glass bottles or HDPE containers and cushioned to avoid breakage. The chemical is labeled properly, following all relevant regulations for safe and compliant transport. Store and ship at ambient temperature, away from incompatible substances. |
| Storage | 2,4-Diphenylpyridine should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Protect from moisture, heat, and direct sunlight. Ensure proper labeling and store at room temperature. Follow all local regulations and safety guidelines for chemical storage to prevent contamination or degradation. |
| Shelf Life | 2,4-Diphenylpyridine is stable under recommended storage conditions; shelf life is typically several years when kept cool, dry, and sealed. |
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Purity 99.5%: 2,4-Diphenylpyridine with purity 99.5% is used in pharmaceutical intermediate synthesis, where it ensures high yield and low impurity formation. Melting Point 116°C: 2,4-Diphenylpyridine with melting point 116°C is used in organic light-emitting diode (OLED) materials development, where it contributes to consistent thermal processing. Particle Size 10 μm: 2,4-Diphenylpyridine with particle size 10 μm is used in pigment formulation, where it provides uniform dispersion and enhanced color stability. Molecular Weight 257.32 g/mol: 2,4-Diphenylpyridine with molecular weight 257.32 g/mol is used in chemical research studies, where it facilitates precise stoichiometric control in reactions. Solubility in Ethanol: 2,4-Diphenylpyridine with solubility in ethanol is used in laboratory-scale catalysis, where it enables simple solution preparation and homogeneous catalysis conditions. Stability Temperature Up To 200°C: 2,4-Diphenylpyridine with stability temperature up to 200°C is used in high-temperature polymerization, where it maintains structural integrity throughout the process. |
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From the outside, the chemical world looks pretty rigid — lots of numbers, long words, technical specs. Things like 2,4-Diphenylpyridine could seem like textbook stuff reserved for lab coats and textbooks. In practice, though, real progress depends on simple, reliable molecules. I’ve learned that 2,4-Diphenylpyridine isn’t just another niche compound; it’s a tool that shows up where detail and performance matter, stretching across research benches and into applied manufacturing.
At its core, 2,4-Diphenylpyridine belongs to the pyridine family — a group that crops up all over chemistry and pharmaceuticals. For folks who work in organic synthesis, that structure brings both stability and flexibility. The two phenyl groups at the 2 and 4 positions don’t just look impressive; they nudge the molecule’s behavior in ways that regular pyridine can’t. This isn’t a substitute for other pyridine derivatives. I’ve seen it used where extra thermal stability or a pinch of hydrophobic character changes the game, as in certain specialty polymers and in organic light-emitting diode (OLED) precursors.
I care about what a molecule can do, not just how it looks. Some labs, for instance, need a scaffold that stands up under heat or pairs well with delicate reagents. I’ve watched researchers pick 2,4-Diphenylpyridine to sidestep unwanted side-reactions that crop up with other pyridines. Its unique shape and weight balance reactivity and resilience. That versatility narrows down troubleshooting and reduces the need to redesign experiments. Ultimately, this cuts down on wasted effort and raw material.
In my own experience, the model is less about a flashy label and more about consistency. I look for specificity — purities pushing high, crystals with little to no visible contamination, and documentation I can trust. Reliable 2,4-Diphenylpyridine generally comes as a pale powder or needle-like crystal, letting me judge purity at a glance. Melting point, typically in the range of 98–102°C, becomes a benchmark. If the batch starts turning color or melts funny, I know something’s off.
Even for laboratories that push less, surface-level specs — such as solubility and particle size — still matter. In solvent systems, this compound dissolves nicely in organic media like chloroform and ethanol, so it gets into reactions without a fuss. That flexibility smooths out workflow in both academic and industrial labs. I value a chemical that doesn’t force me to tinker endlessly with the protocol just to get started.
I’ve seen molecules hyped for every possible use, then disappoint in real-world settings. 2,4-Diphenylpyridine holds up because it slots into roles where expectation matches reality. It gets pulled off the shelf in research labs for synthesis of more complex heterocycles, where its distinctive backbone opens up a wider range of target molecules. In the world of materials, it slips into roles from OLED emitters to coordination chemistry, often giving that extra bit of performance stability or lifetime that other alternatives lack.
Not all uses draw headlines, but they add up. Catalysis, for example, benefits from the ligand properties of 2,4-Diphenylpyridine. The molecule’s planarity and phenyl group bulk let it create selective pockets, tuning how catalysts interact with their targets. For a chemist with tight margins and timelines, that specificity isn’t “exciting” in a glossy magazine sense, but it is essential in a tough project. In my own projects, the clean reactivity profile of this compound has meant fewer surprises, easier product isolation, and a better bottom line.
On paper, plenty of pyridine derivatives look similar. I’ve handled both 2,6- and 2,3-diphenylpyridines, and the small changes in phenyl position turn into real effects. Products with substitutions at different points might offer higher electron density, but they don’t always give the same resistance to oxidation. Some derivatives fail fast in polymer production, where 2,4-Diphenylpyridine survives multiple cycles and keeps downstream reactions on track.
A lot of projects fail quietly because of the wrong molecule in the mix. Researchers often try to substitute in the closest analog, only to see subtle purity issues or stability dips derail their work. With 2,4-Diphenylpyridine, you’re tapping into a track record of solid results both in bench-scale and production runs. That has weight, especially when deadlines press and grant funding depends on tight turnarounds. For contract manufacturers, the consistency means less re-qualification and less waste, slashing hidden costs that pile up over time.
Chemists know that even familiar molecules should be handled with respect. 2,4-Diphenylpyridine doesn’t come with extra risk factors in most settings, but common-sense precautions still matter: gloves, proper ventilation, and a cleared workspace. Because it melts at a moderate temperature, there’s rarely dangerous decomposition. Storage in a dry, cool area keeps the powder free-flowing and pure.
In my years on the bench, simple steps make the biggest difference. Cross-contamination or vague labeling messes up months of planning. Keeping 2,4-Diphenylpyridine properly stored and marked lets everyone in the lab avoid confusion. I’ve seen mistakes happen when attention wavers, so consistency pays off, not only with results but also with safer days at work.
Some of the biggest leaps in technology come from behind-the-scenes advances in material science. The role of molecules like 2,4-Diphenylpyridine expands as research pushes deeper into organic electronics, pharmaceuticals, and synthetic methodology. If OLED screens keep growing sharper and longer-lived, part of the credit goes to niche chemicals like this one, helping control color output and energy efficiency.
Drug discovery often leans on subtle molecular tweaks, and having stable, well-characterized intermediates cuts down on wasted screening and false positives. For researchers who grind through dozens of analogs, reliability becomes worth more than novelty. I’ve seen graduate students lean on dependable building blocks, gaining confidence to take bigger conceptual swings because the foundation holds.
Reliable products depend on accurate data. I choose 2,4-Diphenylpyridine from suppliers who share full documentation — batch records, spectral data, impurity tracking, the works. I look for NMR and IR spectra that match expectations, so I can independently check purity and composition. Over the years, I’ve found that transparency saves headaches. When suppliers dodge questions about origin or analysis, it’s not worth the risk.
Quality control labs benefit from solid data trails. Following regulatory shifts and increased scrutiny, strong documentation helps avoid the pitfalls of inconsistent results and compliance bottlenecks. Regulatory submissions, especially for pharmaceutical or emerging-tech applications, go faster when every step is backed by reliable data. I’ve been through enough audits to know: having everything logged and accessible pays long-term dividends, even if it feels time-consuming at the start.
Nothing gets used on a wide scale without hiccups. 2,4-Diphenylpyridine isn’t always the answer. In especially moisture-sensitive syntheses or extreme pH, it can overreact or degrade. I’ve seen batches go off after exposure to humid ambient air. To dodge these setbacks, best practice means layering storage with silica gel or keeping vials airtight. In crowded lab spaces or shared fridges, these steps prevent costly spoilage.
Scale-up brings its own headaches. What works in a gram-scale flask may fall apart at the hundred-gram level — caking, clumping, grinding issues. Sometimes the handling equipment matters as much as the molecule itself. Coarser powders don’t always dissolve smoothly, so pre-grinding or choosing the right stirring setup avoids lost time. Direct feedback from users tells me that quick fixes at the start stop bigger headaches downstream.
Suppliers sometimes chase pennies by substituting bulk chemicals or skimping on quality control. I’ve worked projects where off-brand 2,4-Diphenylpyridine looked close enough, only to unravel in key trials because a fraction of impurity crept in. I’d much rather pay a small premium than watch a whole line of results collapse from one weak link. Responsible sourcing means confirming the chain of custody, vetting certifications, and — when possible — validating material in-house.
Trust builds through years and is lost in a single slip. As open data and full audits become more widespread, reputable suppliers step up. In places with strict regulations, this peace of mind isn’t a luxury — it’s a necessity. Labs track results across months and years, and spotty batches mean lost publications and broken business partnerships.
The future of specialty chemicals rests on balancing performance with sustainability. 2,4-Diphenylpyridine comes from processes that, until recently, produced more waste than necessary. Cleaner synthesis routes — using greener solvents, lower-impact starting materials, or less energy — have been under development. I see a shift toward manufacturers who invest in these upgrades and share those environmental improvements in public documentation.
Labs and factories eye new targets not only for technical performance, but also for overall footprint. On collaborative projects, choosing the more sustainable option becomes a badge of pride. As environmental transparency climbs, I expect demand for “green” 2,4-Diphenylpyridine to grow, especially among companies seeking to certify sustainable supply chains. For researchers angling for grant approvals, this boost in profile brings real value, both scientifically and socially.
Working with a new molecule always brings nerves, especially under pressure. My advice: start simple, run parallel control experiments, and track each condition in detail. 2,4-Diphenylpyridine seldom throws curveballs if you respect its quirks. Store it right, use fresh stocks, and build up from small-scale reactions. Talking with colleagues who’ve handled batches before can sidestep common missteps; an email or hallway conversation often yields more practical tips than the glossy paperwork ever does.
For educators or undergraduate labs, introducing 2,4-Diphenylpyridine in well-defined undergraduate projects pays off. It highlights basic lessons in good laboratory practice: weighing, dissolving, filtering, and logging observations. I’ve seen students take more pride in their results when they understand that the building blocks — not just the “sexy” molecules — matter for finished products.
The edge in applied chemistry comes not just from what you buy, but from how you adapt. I keep up with recent literature on pyridine derivatives, scanning for clues about new applications or fresh limitations. Even the best-established compounds like 2,4-Diphenylpyridine turn up in surprising places — from novel organic dyes to advanced sensor development. Conferences and preprints open up networks of users willing to share both breakthroughs and disappointments.
Improvement never stops; batches change, needs evolve, and regulatory landscapes shift. The labs that consistently succeed have feedback loops: log every anomaly, consult with peers, and refine protocols with every run. For 2,4-Diphenylpyridine, that can mean discovering a new coupling partner or finding a solvent system that improves yields. Over time, small adjustments translate into much stronger results, not least because they catch problems before they get big.
It’s easy to chase the latest breakthrough, but most meaningful progress is built step by step, with dependable ingredients. 2,4-Diphenylpyridine stands out as an unsung workhorse. It delivers where it counts: clear documentation, tight specs, straightforward handling, and a proven record in both research and industry. Whether you’re bench-testing a new reaction or scaling up for market, decisions about small molecules ripple outward, shaping projects long after the purchase order clears.
Experience shows that preparation, vigilance, and reliable sourcing count for more than shortcuts and half-measures. As laboratories and manufacturers face tighter timelines and rising quality demands, the quiet value of a molecule like 2,4-Diphenylpyridine grows. Progress rests on small, sturdy shoulders.