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HS Code |
314984 |
| Chemical Name | 3-(3-Bromophenyl)pyrazole |
| Molecular Formula | C9H7BrN2 |
| Molecular Weight | 223.07 g/mol |
| Cas Number | 396746-39-3 |
| Appearance | Off-white to light yellow solid |
| Melting Point | 110-114°C |
| Solubility | Soluble in DMSO, DMF, slightly soluble in methanol |
| Purity | Typically ≥98% |
| Smiles | c1cc(Br)ccc1c2ccn[nH]2 |
| Iupac Name | 3-(3-bromophenyl)-1H-pyrazole |
| Storage Conditions | Store at 2-8°C, protected from light |
| Synonyms | 3-(3-Bromophenyl)-1H-pyrazole |
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Good chemistry has a way of shaking things up, and 3-(3-Bromophenylpyrazole) catches a lot of attention for that very reason. Within research labs and development teams, every new compound brings its own set of strengths. This isn’t just another reagent sitting quietly on a shelf; it represents the results of years spent searching for molecules with the right balance of reactivity, selectivity, and reliability. My own experience in the lab has taught me that the right building block often sets the course for an entire project, turning long odds into real opportunities.
Scientists choose 3-(3-Bromophenylpyrazole) for several reasons. Chemically, it starts with a pyrazole ring—a structure recognized for stability and biological relevance—linked to a brominated phenyl group that introduces a reactive site. This structural twist opens doors for more complex transformations, letting researchers explore routes that would stall out with simpler or less reactive analogs. Being able to work from a reproducible and pure starting material also saves hours of troubleshooting later down the line, a lesson anyone who has struggled through purification steps knows all too well.
3-(3-Bromophenylpyrazole) usually appears as a white to off-white solid, reflecting a high level of purity that matters in both academic and industrial settings. Precision synthesis methods focus on removing common contaminants that tarnish results, and every experienced chemist learns to trust products that deliver clean spectral data. Reports pin its melting point in the typical range for solids of this class, often cited between 110 and 115 degrees Celsius. This predictable profile guides handling and storage in busy labs, and experienced hands recognize the value of a compound that does not shift under ordinary working conditions.
Solubility sets expectations, too. The compound dissolves well in common organic solvents such as DMSO and chloroform. Easy solubility means researchers avoid hours trying to coax a stubborn powder into solution. I’ve spent enough time waiting on sluggish dissolutions to appreciate simple, straightforward sample prep. Those working with it in solution-phase synthesis or analytical testing get more reliable runs and cleaner separations, saving both material and time.
Synthetic chemistry builds its progress on stepwise assembly of complex architectures. In medicinal chemistry, derivatives of phenylpyrazole structures have earned their stripes as critical ingredients in drug discovery. Compounds related to this one show up in experimental treatments for inflammation, neurological disorders, and even certain forms of cancer. Academic teams treat 3-(3-Bromophenylpyrazole) as a platform for new molecular designs, modifying either the pyrazole ring or bromine-bearing phenyl ring to scan structure-activity relationships. The real spark shows when a team pivots, spotting a promising pattern and diving into deeper study, hoping for that rare breakthrough.
Outside drug design, agrochemical research also sees value in pyrazole derivatives due to their insecticidal and herbicidal activity. Industry veterans familiar with crop protection will recognize the structure as a cousin to lead molecules in several pesticide candidates. Precise substitution patterns, such as that provided by the meta-bromine on the phenyl ring, can spell the difference between a promising lead and something that misses the mark in field trials. Trust in quality reagents becomes paramount, especially when downstream applications carry regulatory and safety demands.
Custom synthesis teams often lean on compounds like 3-(3-Bromophenylpyrazole) for scalable transformations. The reactive bromine atom acts like an invitation for cross-coupling reactions, including Suzuki, Heck, and Buchwald-Hartwig strategies. These palladium-catalyzed approaches dominate modern synthesis, making selective carbon-carbon and carbon-nitrogen bond formation routine. In my own lab days, many challenging syntheses began with scaffolds much like this one, letting the team carve out new derivatives without starting from scratch.
Every lab veteran knows not all bromophenyl pyrazoles deliver the same results. Subtle changes in molecular structure affect everything from reactivity to toxicity profiles. The positioning of the bromine—the 3- or meta- position in this model—means different access routes to analogs, influencing both chemical and biological outcomes. While others might point to ortho or para isomers, only the meta substitution shows certain reactivity nuances under cross-coupling conditions. This isn’t minutiae for its own sake; subtle selectivity in a key reaction can save weeks of work that would be lost on less cooperative analogs.
Competition from other halogenated pyrazoles exists, yet researchers appreciate the unique balance this compound strikes. Fluorine substitutions might deliver higher electronegativity but often miss on reactivity in standard coupling chemistry. Iodine, while more active, brings cost and handling headaches to every scale-up. Chlorinated versions occasionally fall short for both reactivity and downstream functional group tolerance. Bromine in the meta position achieves that “just right” balance, where reactivity, accessibility, and safety meet for both lab-scale and semi-industrial applications.
Even minor purity issues or batch-to-batch inconsistency will throw off sensitive optimization work. Practically, no researcher embraces the prospect of rerunning failed reactions or extrapolating from suspect data. Factoring in regulatory standards, particularly in pharmaceutical and pesticide development, puts even more pressure on compounds to deliver consistent results. Each bottle of 3-(3-Bromophenylpyrazole) worth its salt comes with a stack of analytical data: proton and carbon NMR, mass spectrometry, and HPLC traces give confidence that every batch meets the same stringency. This level of traceability and transparency supports rigorous quality standards favored by leading organizations.
Why do researchers keep turning to this compound? Reliable outcomes matter. Seasoned scientists understand that material selection impacts not just reaction success today, but reproducibility in months or years down the line. Supply interruptions or shifting quality levels set whole projects back, locking up research dollars and squandering time. The right supplier needs more than technical data—there must be a proven track record. Open lines of communication between provider and researchers allow for feedback and troubleshooting, a practice I’ve found invaluable. Trust builds not from marketing, but from each successful reaction and each consistent result.
Broader industry trends elevate the importance of workhorse intermediates. Sustainability figures larger in chemistry every year, and compounds with both high reactivity and tolerance to green solvents increasingly shape development strategies. New regulatory scrutiny over intermediates imported from uncertain supply chains raises the bar for documentation, transparency, and traceability. The team behind a successful launch pays just as much attention to the raw materials as to the final product, recognizing that breakthroughs in process chemistry often start much earlier than most people realize. I’ve seen too many delays linked to unreliable building blocks to underestimate this truth.
Another major driver is the demand for molecules that enable rapid innovation at the interface of chemistry and biology. Modern drug programs explore ever-broader chemical space, taking inspiration from traditional small molecule libraries, natural products, and even fragment-based approaches. Flexible intermediates like 3-(3-Bromophenylpyrazole) allow chemists to map out new territory quickly, synthesize targeted libraries, and respond to a nearly constant stream of new ideas. The lead optimization cycles are shorter, and successful teams keep an eye out for any opportunity to accelerate their route to results.
Anyone who has ever navigated the early stages of a chemical synthesis effort knows the immense value of reliability. Finding a reagent that solves more problems than it causes becomes a priority once the pace picks up. From my days coaching new graduate students, the lesson became clear: never underestimate the peace of mind granted by well-characterized, high-purity starting materials. The technical literature supports this view—it is littered with examples of projects derailed by subtle impurities or minor changes in production routes. Failures to reproduce published results trace back, time and again, to differences in starting reagents.
3-(3-Bromophenylpyrazole) fits easily into modular synthesis plans. It links with other aromatic pieces, expands into heterocyclic frameworks, and tolerates a mix of catalytic conditions without falling apart or introducing surprises. My colleagues pursuing analogs often pull this building block from the shelf not just because it solves today’s problem, but because it keeps options open for tomorrow’s pivot. Faced with changes in direction or new lead ideas, the ability to quickly revisit and rework synthetic plans ranks high on everyone’s wish list.
Direct experience with challenging projects reinforces why careful, detail-oriented sourcing pays dividends. Labs working under good laboratory practice standards or preparing samples destined for clinical evaluation simply cannot gamble on ambiguous or poorly documented intermediates. Access to transparent analytical documentation, verifiable provenance, and full characterization reports makes a measurable difference for regulatory filings, patent support, and even academic publication. The broader chemical community only grows more demanding about these requirements each year.
Some issues linger throughout the fine chemicals business, and 3-(3-Bromophenylpyrazole) occupies a space where they matter. Volatility in raw material markets, international shipping hiccups, and periodic regulatory clampdowns put steady supply at risk. Research organizations that invest early in strong partnerships with trusted suppliers fare better, especially those willing to negotiate transparent agreements and shared quality expectations.
Education and outreach also help address lingering gaps in knowledge. Training sessions for junior chemists on proper storage, handling, and assessment of sensitive intermediates shorten learning curves and limit unnecessary downtime. Investments in quality control infrastructure, both at the manufacturer and end-user site, guard against costly surprises in long, multi-step syntheses. Keeping these details in mind pays off not just for a single project, but for the long-term health of any research portfolio.
Within sustainability conversations, researchers rightly watch for greener ways of making and transforming intermediates. Reducing the use of hazardous solvents or developing milder catalytic methods brings multiple benefits. Increased focus on lower environmental footprints drives both academia and industry to prioritize not just the end product, but how every component along the way is made, moved, and managed. In my own circle, the best teams now benchmark new synthetic routes against both safety and environmental criteria, beyond classic yield and selectivity data.
To address supply, quality, and sustainability together, stakeholders need coordinated solutions. Start with active communication between research teams and suppliers. Sharing planned scale changes in advance, being clear about acceptable impurity profiles, and communicating anticipated delivery schedules make a big difference. My years in project management reinforced the point: timely updates prevent unplanned pauses in the bench and lost months of effort.
Championing open science and best practices across the chemical community helps spread reliable knowledge. Posting validated synthetic routes, sharing troubleshooting tips, and reporting anomalies in real time avoids repeated mistakes between groups. High-impact articles and database entries that fairly treat both successes and failures give the next generation of chemists a head start—something private anecdote sharing simply cannot match.
On the technical front, investment in advanced analytics—such as ultra-high performance liquid chromatography and mass spectrometry—backs up claims of consistency batch after batch. Regular proficiency testing, both internally and using external reference labs, supports trust. Efforts to standardize and digitize supply documentation further help meet rising regulatory expectations, shortening the time from bench to market.
Strong relationships also offer a hedge against the unexpected. Whether negotiating long-term contracts for preferred intermediates or working through a temporary bottleneck, researchers value suppliers committed to dialog instead of one-way transactions. In my direct experience, teams with established partnerships weather disruptions better and spot emerging trends early, putting their projects on more stable footing.
Progress in chemistry often starts well before the flash and drama of the final breakthrough. Success regularly stems from mastery of small details, such as the choice of a single building block at the critical early stages. 3-(3-Bromophenylpyrazole) represents more than a line entry in a catalog; it stands as evidence of the value in careful design, reliable sourcing, and continuous improvement at every step from synthesis to delivery.
Every aspect of the research process, from idea to implementation, builds on the choices made with intermediates like this one. The best research teams know that the effort put into securing quality starting materials pays off again and again—in data integrity, project pace, and reduced risk of rework or regulatory delay. Chemical innovation thrives on these quiet victories, the ones less visible but no less essential than headline-grabbing discoveries.
Reflecting on years of bench and management experience, the biggest leaps always come when time and expertise align with access to the right tools. In a competitive landscape, where both speed and safety matter, strong choices at the ground level turn the ordinary into the extraordinary. 3-(3-Bromophenylpyrazole) illustrates how focused improvements in one small domain—consistent quality, assured supply, actionable documentation—multiply into real, measurable returns for the broader world of science and technology.
For those invested in chemistry’s future, attention to foundational choices will continue to matter. Whether chasing the next big medical advance, developing safer crop protection, or exploring new catalytic strategies, every step counted in the progress of an entire field. By recognizing what compounds like 3-(3-Bromophenylpyrazole) bring to the table, researchers can tackle complex problems with confidence, efficiency, and innovation built upon experience—uniting decades of know-how with the promise of what's coming next.