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HS Code |
291093 |
| Chemical Name | 3-Amino-4,6-Dibromopyridazine |
| Molecular Formula | C4H3Br2N3 |
| Molecular Weight | 267.90 g/mol |
| Cas Number | 86092-29-3 |
| Appearance | Off-white to light yellow powder |
| Melting Point | 189-192 °C |
| Solubility | Slightly soluble in water; soluble in DMSO and DMF |
| Purity | Typically >97% |
| Storage Conditions | Store at room temperature, in a tightly sealed container, away from light and moisture |
| Synonyms | 4,6-Dibromo-3-aminopyridazine |
| Smiles | NC1=NN=C(Br)C(Br)=C1 |
| Inchi | InChI=1S/C4H3Br2N3/c5-2-1-3(6)9-8-4(2)7/h1H,(H2,7,8) |
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Chemistry gets its real edge from molecules like 3-Amino-4,6-Dibromopyridazine. In a lab full of routine ingredients and ordinary compounds, a molecule with two bromine atoms and a rare aminopyridazine core stands out. I remember plenty of times working late, pouring over data, wondering if a new building block would bring any real difference to a synthesis project. This molecule actually disrupts the usual, and every time we used it in a series of studies, the results delivered both clarity and consistency.
With a chemical formula of C4H3Br2N3, 3-Amino-4,6-Dibromopyridazine grabs attention right off the shelf. The presence of both bromo groups and an amino group punched into the pyridazine ring gives it a sort of chemical flexibility that few other small molecules deliver. This direct layout lets research chemists strike out into less-charted areas—custom scaffolds, new ligand options, unique polymer applications, and even synthesis of pharmaceuticals that break old molds. I once watched a colleague spend months hunting for a decent intermediate for kinase inhibitor work, only to find that this compound offered a more consistent base for coupling reactions than anything in the typical inventory.
Every bottle of 3-Amino-4,6-Dibromopyridazine you encounter comes as an off-white to a light tan powder, stable under proper storage. Purity standards in commercial and academic labs often call for 97% or above; this compound regularly matches or exceeds that mark. The melting point sits north of 230°C, making accidental decomposition a worry you can put aside in most day-to-day use. The molecule dissolves well in common polar aprotic solvents, so scale-up reactions run with fewer solubility frustrations.
Synthetic chemists savor that kind of reliability. I recall more than one route coming to a halt because of a stubborn, sticky byproduct or a material that wouldn’t dissolve when it counted. 3-Amino-4,6-Dibromopyridazine skips those headaches, letting focus stay on the discovery at hand instead of day-to-day troubleshooting.
You won’t find this compound sitting idle just as a reagent sitting at the back of a shelf. Its real power comes out in specialty synthesis. That N-amino group isn’t just a bystander. It brings a handle for coupling and can serve as a gate for various structural transformations. Medicinal chemists have used it in heterocyclic frameworks that call for precise bromination patterns, especially when they want to block certain positions and drive selectivity in further reactions.
In the last few years, the field has also seen a push for more targeted molecules in cancer biology and enzyme inhibition. Libraries built from 3-Amino-4,6-Dibromopyridazine show real selectivity in biochemical testing, largely because the two bromine atoms open up specific paths for substitution. This means each analog crafted carries a subtle fingerprint, and structure-activity studies become a lot less of a slog.
Polymers and materials science folks also find this compound handles step-growth reactions neatly. The stability of the dibromopyridazine core allows interface with aromatic and heterocyclic monomers without the runaway side reactions that plague less robust intermediates. Trying to make organic electronic materials from scratch is less daunting when key building blocks like this show sharp, clean reactions.
For anyone outside the lab, it might seem like a compound is a compound, and a bottle is just another shelf item. Chemical synthesis doesn’t really work that way. Each building block offers different doors into new chemistry. In my own experience working on small library designs, just having one tough, versatile intermediate has often cut months off a project. It’s not just convenience; it’s about what doors get opened in discovering something new.
3-Amino-4,6-Dibromopyridazine gives designers access to scaffolds hard to reach by other means. The two bromo groups lock down positions that can later be swapped for boronic acids, stannanes, and other tricky partners—critical steps for coupling reactions. For folks working on fragment-based lead discovery, the unique electronic push-pull of this structure yields fragments with profiles apart from the sea of benzenes and pyridines everyone else uses.
I’ve seen teams move from the same set of commercial pyridines with mediocre results to using this dibromo derivative and suddenly unlock whole new chemical spaces. The joy in that kind of moment is hard to describe. In a world where patents close off one path after another, access to truly distinct building blocks means the difference between breakthrough and dead end. This compound stands tall among those rare few.
Market shelves overflow with dozens, if not hundreds, of halogenated pyridazines and related heterocycles. Stack a bottle of 3-Amino-4,6-Dibromopyridazine next to its siblings, and some key differences jump out. Single-bromine pyridazines lack the precise site-selectivity that two halogens give. They don’t let you control substitution pattern as tightly, so you get a messier mix of products. Others offer chloro or fluoro variants, but those smaller halogens don’t behave quite the same way in coupling chemistry—often leading to lower yields or less stable products.
Even the core pyridazine framework matters here. Related molecules in the pyridine or pyrimidine family often don’t let synthetic chemists reach the same balance between electronic properties and steric control. In practical terms, I’ve seen reaction yields jump from under 20% to more than 70% with this dibromo compound as the key intermediate—things that look small on paper but save thousands in wasted effort across big multi-step processes.
Other amine-protected or substituted analogs rarely combine both chemical stability and ease-of-reaction. For high-throughput screening, reproducibility becomes the lifeblood of credible science, and the unique blend of reactivity and shelf-stability makes this compound a cornerstone for teams planning both small-scale medicinal chemistry and large-scale industrial runs.
Ask any research director or manufacturing chemist: reliability backs everything. Many projects stumble not on scientific vision, but on whether a key ingredient keeps showing up when demand spikes. One reason that 3-Amino-4,6-Dibromopyridazine gets picked over less mainstream options comes down to robust, consistent access and clarity in sourcing. With more suppliers recognizing its value, supply interruptions have dropped, and researchers get what they need to keep innovation moving forward.
Laboratory testing, both in industry and university environments, shows consistent purity metrics run after run. Analytical data from NMR, mass spectrometry, and elemental analysis lines up batch to batch. Failure rates linked to off-spec intermediates become less common. That reduces waste, frustration, and the ever-looming cost of repeating a month’s work on a technicality.
Project managers increasingly note turnaround times improving, regulatory checks passing more smoothly, and staff reporting fewer issues tied to intermediate breakdowns. These details might seem mundane to outsiders, but anyone who has seen a project unravel from a single impurity knows the true value of reliability. Compounds like 3-Amino-4,6-Dibromopyridazine carry not just a chemical benefit, but a practical edge in the real-world demands of R&D and scale-up operations.
Research momentum pairs best with access to flexible tools. The landscape of drug discovery and advanced polymer development keeps changing, pushed by new diseases, material demands, and scientific curiosity. Versatile, selectively brominated intermediates prove essential for rapid iteration and effective troubleshooting. With 3-Amino-4,6-Dibromopyridazine’s growing track record, teams tackling everything from central nervous system targets to specialty coatings reach their goals with fewer detours and “back to the drawing board” moments.
Working alongside groups using this compound, I’ve seen work in kinase inhibitor development shift from theory into practice when the dibromopyridazine became the go-to intermediate. The ability to drive electrophilic substitution at two distinct ring sites, couple with protections for the amino group, and bypass tricky dehalogenation steps smoothed the process. Yields held steady, side products dropped, and screening data looked a lot less noisy. That’s not just a technical win—it’s the kind of result that gets teams funded and papers published.
The molecule’s unique landscaping between electron-rich amines and bulky bromo groups also allows medicinal chemists to tune solubility and membrane permeability on the fly. Drug candidates pull ahead in the screening race, while others fall away because their physical properties miss the mark. Starting with a more versatile intermediate often means better results sooner, with fewer chemical dead ends along the way.
Plenty of obstacles still line the path between a promising building block and its safe, sustainable use. Handling and disposal of halogenated organics demand vigilance. Lab teams must take standard precautions—ventilation, glove work, responsible waste disposal—and it’s wise not to rush through reaction planning. No one wants an uncontrolled release, and even the best compounds need careful attention to storage and safety handling.
A larger challenge sits with scalability and green chemistry goals. As regulation tightens and customers push for environmentally conscious solutions, everyone in the industry feels the pull toward milder methods and less hazardous intermediates. Here’s where honest conversation matters. Some newer protocols now let researchers install bromo groups more selectively, cutting down on waste and washing steps. Automation in flow chemistry handles riskier intermediates in closed systems, reducing hazards to personnel. The story of 3-Amino-4,6-Dibromopyridazine is one of compatibility with these evolving approaches. Chemists get both flexibility and a path toward responsible use; a win-win that builds trust inside and outside the field.
Supply chain stability always asks for improvement. Manufacturers can work closer with suppliers, setting up direct communication lines and focusing on transparency at every turn. Regular audits, third-party quality checks, and public sharing of analytical data foster confidence. Open communication about batch-related anomalies saves time, money, and reputation down the line. When labs get what they pay for without drama, breakthroughs in new therapeutics, coatings, or catalysts follow much faster than anyone predicted.
At every level of science and engineering, trust starts with materials that do exactly what they say. Purity data, consistency in physical appearance, reliability in reactivity—all feed directly into the credibility of published work. One off-spec intermediate can unravel a whole set of findings, sometimes after years of patient investigation. As journals and regulatory agencies tighten requirements, research groups lean even harder on providers of top-quality materials.
During my own research career, nothing proved as valuable as a network of trusted colleagues ready to share both praise and warnings about chemical suppliers. “This lot’s been clean for the last six months,” a friend once told me, passing along a tip that saved weeks of troubleshooting. Word of mouth travels fast in the chemistry community; those compounds known for rock-solid purity and dependable specification find their way from one lab to another, with researchers vouching for their impact.
3-Amino-4,6-Dibromopyridazine’s reputation rests on this kind of quiet confidence. As individual laboratories and large organizations adopt rigorous analytical routines, small inconsistencies get flagged early, problems resolved before publication or product launch. This cultivates a feedback loop—better materials yield better science, which then attracts better funding and sharper minds.
Today’s researchers face rising expectations: faster timelines, tighter budgets, higher hurdles for safety and sustainability. A single misstep in the choice of building blocks can derail months or years of effort. In pharmaceutical discovery and advanced polymer labs alike, access to reliable, flexible intermediates carries more influence than ever before on the path from idea to result.
Many compounds fade into the background of day-to-day synthesis, but not all. Reliable performers, especially those with unique substitution patterns and proven versatility, stick around through changing research trends. I’ve seen the same intermediate pass through many hands—used for everything from cancer research to new organic LEDs—each time delivering a measure of both reassurance and creativity.
Chemists count on ingredients that don’t just meet minimum standards, but actively support the kind of inventive jumps that move entire fields forward. Compounds like 3-Amino-4,6-Dibromopyridazine embody the best spirit of collaborative science—the shared hunch that, somewhere in a pile of bottles and notebooks, the next big insight waits for the right reaction and the right moment.
Chemical research and manufacturing thrive on access to building blocks that rise above commoditized sameness. With a unique structure, sharp reactivity profile, and consistency across batches, 3-Amino-4,6-Dibromopyridazine steps beyond the template of “just another intermediate.” In every project, from designing novel drugs to weaving high-performance polymers, this compound has stood as a toolkit essential—making tough chemistry more approachable, and new science possible.
Drawing on real laboratory experience, it’s clear that the impact of specialty molecules echoes beyond their bottle. They change how teams plan, how fast discoveries arise, and how confidently results can be shared with the world. As demand for reliable, innovative chemistry continues to mount, compounds with this mix of flexibility and reliability take on an ever-larger role—not just in technical pursuits, but in building scientific communities defined by trust, progress, and shared accomplishment.