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HS Code |
980186 |
| Chemical Name | Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate |
| Molecular Formula | C19H21N3O4S |
| Molecular Weight | 387.46 g/mol |
| Cas Number | 2144573-85-5 |
| Appearance | Off-white solid |
| Purity | Typically ≥ 98% |
| Storage Temperature | 2-8°C |
| Solubility | DMSO, Methanol |
| Synonyms | tert-Butyl 5-tosyl-5H-pyrrolo[2,3-b]pyrazine-2-carbamate |
| Smiles | CC(C)(C)OC(=O)Nc1ncc2c(n1)CC(NS(=O)(=O)c1ccc(C)cc1)=C2 |
| Inchi | InChI=1S/C19H21N3O4S/c1-13-5-7-16(8-6-13)27(24,25)22-11-15-12-21-19(10-17(15)22)20-18(23)26-14(2,3)4/h5-8,10,12H,9,11H2,1-4H3,(H,20,23) |
As an accredited Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 5 grams of Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate, sealed with a screw cap and labeled. |
| Shipping | The chemical Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate is shipped in tightly sealed containers, protected from moisture and light. It must be handled as a laboratory reagent, typically shipped at ambient temperature, with appropriate hazard labeling according to SDS guidelines, and compliant with local, national, and international chemical transport regulations. |
| Storage | Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-b]pyrazin-2-ylcarbamate should be stored in a tightly sealed container, protected from light, moisture, and incompatible substances. Store at room temperature, ideally in a cool, dry, well-ventilated area. Avoid exposure to strong acids, bases, and oxidizing agents. Ensure proper labeling, and follow institutional safety and chemical hygiene guidelines during storage and handling. |
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Purity 98%: Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate with 98% purity is used in heterocyclic synthesis, where high chemical yield and reaction reproducibility are achieved. Melting Point 176°C: Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate with a melting point of 176°C is used in solid-phase peptide synthesis, where thermal stability during process steps enhances product integrity. Molecular Weight 425.49 g/mol: Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate of molecular weight 425.49 g/mol is used in medicinal chemistry research, where precise compound identification supports target validation studies. Particle Size < 20 µm: Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate with particle size less than 20 µm is used in pharmaceutical formulation, where optimal dispersion improves bioavailability. Stability Temperature up to 100°C: Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate with stability temperature up to 100°C is used in analytical method development, where compound integrity is maintained during extended analyses. |
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Walking through any modern lab, it’s impossible not to feel awed by those quiet shelf-dwellers: rare compounds, stacked in neatly labeled brown bottles or waiting cold under the hoods. Over years spent keeping an eye on the evolving landscape of organic synthesis, some molecules always seem to elbow their way into conversations. Among these, Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate demands a second glance. Researchers who spend hours amid glassware and chromatography columns know: the right building block doesn’t just save time—it can open entirely new doors.
In the crowded world of specialty organics, purpose-built for drug discovery and academic innovation, Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate occupies an interesting niche. Much of its appeal comes from its scaffold—the pyrrolo[2,3-b]pyrazine core. This backbone pops up repeatedly in literature spanning kinase inhibition work, central nervous system probe development, and attempts to target recalcitrant protein interactions. The presence of the carbamate and tosyl moieties allows for additional handling flexibility, which anyone working with protective group chemistry will recognize as a time-saving bonus.
It’s worth noting that many historical scaffolds have wild stories behind them. Older chemistries often forced researchers into workaround after workaround, endlessly searching patent filings or mapping out obscure transformations in their notebooks. The modern era has blessed us with intermediates and building blocks so thoughtfully designed, both in their reactivity and stability, that new research lines open up with far less risk. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate fits into this story as a tool that grants confidence and reliability every step of the way—from first trial runs to upscaled protocols.
Anyone who has run repeated syntheses using fragile intermediates knows how far simple details—like solubility, melting point, or spectral clarity—can make or break a series of experiments. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate, with its robust tert-butyl carbamate group, resists hydrolysis better than many of its cousins. This chemical durability lets researchers trust that their starting material will perform predictably, week in and week out, even through the somewhat rough handling routine chemistry often demands. The tosyl group brings additional synthetic versatility: those clear signals in NMR or mass spectroscopy are a blessing for confirming structure during those inevitable late-night troubleshooting stretches.
Lab teams working with complex molecular libraries tend to gravitate toward products that behave similarly from batch to batch. Data integrity matters, and a single off-specification bottle can cost days in confirmation work or reruns. This compound shows consistency, both in the lab and in published preparation procedures, which is exactly what the research community needs. Every pipette drop, every cracked vial of starting material, gets one step closer to being worth the original investment of time and money.
It’s easy to overlook just how much work goes into identifying, screening, and optimizing lead molecules, before a project even approaches the heady heights of preclinical testing. The scientific literature is full of examples where one tiny change in scaffold—or a clever protecting group—means the difference between a compound proceeding or being shelved. Those of us who cut our teeth making and remaking heterocyclic cores can speak for days about the value of readily accessible, high-purity intermediates like Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate.
This compound invites further functionalization. The carbamate handle allows for gentle global deprotection: chemists can install sensitive motifs after forging the central ring system, without worrying about side reactions from harsher conditions. In projects involving fragment-based drug discovery, these sorts of step-saving and selectivity-improving features matter greatly. For example, during my time collaborating with an early-stage neuroscience team, having modular intermediates meant we could test and iterate SAR hypotheses several weeks faster per cycle. The carbamate group, in particular, changed the way we built out our routes—delaying more expensive modifications until we knew which pieces really worked.
Beyond just convenience, Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate supports greater creativity. Medicinal chemists aiming for kinase inhibitory activity, or tweaking bioisosteric replacements, often struggle to balance reactivity and metabolic liability. The regulated masking from the tert-butyl carbamate, and the gentle leaving group potential from the tosyl, extend options on how to introduce new fragments or tune electronic properties. Sometimes the best breakthroughs arise out of simply having the right starting point—one that welcomes incremental changes or elaborate divergences without a full redesign.
Plenty of intermediates that look similar at first sight come with hidden downsides. The small differences in functional group stability, ease of purification, and compatibility with automated workflows can end up dictating which project moves forward. Compared to older analogs lacking the carbamate shield, Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate stands out as less prone to decomposition under ambient air or moisture. Flash column purification becomes much less “hit or miss”; even inexperienced graduate students or automation platforms can achieve high purity on the first pass.
Cost also plays a role in real-world selection. Less robust intermediates or those with poor shelf stability often force research groups to buy small amounts and rush to use them before degradation. The enhanced stability here offers a practical benefit: having a bottle last many weeks means less waste and smoother budgeting. I remember years spent keeping a spreadsheet just to track which compounds needed urgent use before collapse—products like this make such anxiety unnecessary. That small detail, taken together over a year’s work, contributes directly to productivity.
Then comes the matter of downstream compatibility. Some competitors require elaborate detours—protecting, deprotecting, re-protecting—just to install the right functionality for a key transformation. By contrast, this compound’s structure, especially the BPoc-protected amino group and sulfonyl substituent, leaves doors open for convergent routes mapped directly from retrosynthetic planning. There’s more than efficiency involved; there’s a sense of creative freedom to design syntheses based on biological logic rather than mere chemical limitation.
Science advances on the back of careful, incremental improvements—each informed by what didn’t work the month before. Across different teams and disciplines, certain pain points keep recurring. Poor reproducibility, unexpected reactivity, and batch-to-batch variation can all undermine the scientific process. Talking with colleagues at medicinal chemistry conferences, recurring complaints always include “I thought this compound would work, but purification became a nightmare,” or “Too many unknown byproducts threw off our SAR progress.”
Better-designed intermediates take much of this uncertainty out of daily work. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate supports rebuilding old synthetic routes without needing extra tricks to safeguard fragile handles. In my own academic days, the embarrassment of explaining away an unexpected decomposition band during a group meeting presentation still lingers; learning to reach for more reliable intermediates now feels like common sense. Products offering that peace of mind encourage deeper exploration, as the sinkholes of “troubleshooting chemistry” dry up.
This is not just a matter of convenience. Reproducible, predictable intermediates help sustain trust across large, multi-institution teams. A postdoc in Germany and a process chemist in the US can discuss results, knowing their bottles likely contained the same starting point. Over time, those shared referents build a robust, cross-border chain of progress—each link held by reliability and solid characterization.
In an era where questions of data reliability and research transparency fill journal pages and funding reviews, having thoroughly characterized and traceable chemical products takes on special significance. The days of “mystery intermediates,” where literature provides little beyond a hand-drawn structure and a melting point, have faded. Today’s expectations insist on rigorous NMR, mass spec, and purity data. Products like Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate bridge the gap between legacy practices and new, higher standards.
Responsibility in science these days means more than producing results. It runs through each decision—right down to how reagents are chosen and reported. While teaching early-career chemists, I’ve seen that using well-documented building blocks shapes the whole research process. Young scientists spend less time troubleshooting baseline purity problems and more time actually testing, refining, and validating their discoveries. That shift pays off not just in cleaner data, but in stronger skillsets and greater confidence all around.
The focus on transparency also pays off in regulatory or filing-heavy environments. In drug development, for instance, having intermediates whose characteristics are well-described and repeatable can save weeks or months downstream. Not every product lives up to these standards; the select few that do become favorites in the toolkits of both academia and industry.
No product lives in a vacuum; every purchase, every gram weighed, fits into the much larger story of chemical development and consumption. The push toward greener, more responsible chemistry isn’t just about changing solvents or cuttings emissions—though both matter. It also means rethinking how intermediates are designed, packaged, and used. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate, with its resilience and broad synthetic access, helps cut down the need for excess “just-in-case” stocks. Less spoilage leads to less waste. Reliable performance over time also means researchers can scale up without fear of sudden bottle-to-bottle shifts that set entire projects back.
The sustainable chemistry movement has gathered steam partly through shared practical discoveries—finding that certain building blocks stand up to repeated recycling, or reduce reliance on hazardous reagents for protection/deprotection steps. With its balance of non-labile groups and clean reaction profiles, this compound lends itself to more repeatable, upgradable processes. Instead of chasing yields through dodgy purifications or multi-stage workarounds, research groups gain the space to plan more direct, efficient routes. Those little optimizations accumulate, supporting lab safety and reducing time spent with hazardous materials.
Whether in a teaching lab or high-throughput industrial suite, the difference between a productive experiment and a frustrated evening often rests with the accessibility and behavior of the core chemical units. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate offers a hands-on lesson in this. For the grad student struggling to master column chromatography for the first time, a forgiving intermediate that doesn’t leave streaks or byproduct blurs makes an indelible impression. For the process development team replacing legacy syntheses, a consistent product streamlines not just the bench work but also documentation, reporting, and regulatory interaction.
Many junior scientists get their first deep exposure to the challenges of reproducibility by tracking down the sources of “unexpected” peaks or failed couplings. The shift to trying out more robust intermediates and learning why carbamate-protected analogs outperform in resistance to hydrolytic loss becomes a turning point. From then on, the lesson lasts their entire career: smart starting choices multiply downstream options, while poorly characterized inputs create only extra work.
I recall a frustrating project several years back—perfect NMR, perfect initial synthesis, and then…all kinetic measurements shot to pieces by unpredictable byproducts. Retesting with more rigorously characterized, modern intermediates like this one brought quick success. Those lost weeks became a clear memory of why systematic, careful product selection matters—an experience many in the field have shared.
Standing at the intersection between design, synthesis, and final application, Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate pushes forward a broader culture of intention in laboratory work. Working professionals—pressed by deadlines, publication schedules, or batch deadlines—depend on materials that minimize distractions and support reliable progress. This molecule checks many boxes that matter to the practitioner: clear reactivity patterns, ease of functionalization, and solid documentation behind each bottle.
In teams moving rapidly, a bottleneck in intermediate preparation rapidly snowballs into staffing headaches, equipment logjams, and dashed timelines. Choosing a workhorse building block, one that behaves the same on day fifty as on day one, wards off countless headaches. It’s not pure luck or happenstance; it’s the upshot of decade-long efforts to design, implement, and commercialize products with the scientific end-user in mind.
For smaller labs and those in resource-limited settings, this kind of product also lowers the entry barrier to advanced research. Instead of devoting precious funds or labor toward troubleshooting, they can focus creative energy higher up the value chain—screening more targets, iterating more hypotheses, and publishing sooner. The “ripple effect” includes bolder science, better-trained chemists, and a faster pace of innovation across the entire sector.
Not every issue gets solved by a better bottle of intermediate, though. Researchers still face persistent bottlenecks around cost, delivery speed, and global access. For those of us working in places where import restrictions or shipping delays are common, the availability of reliable, shelf-stable intermediates begins to open up new collaborative possibilities. Instead of being limited by local supplier inventories, researchers can plug into a broader market of pre-characterized, application-ready products.
Yet progress here points to further steps. Chemists, both in academia and industry, push for transparency in documentation—full spectral assignments, proper impurity profiling, clear reactivity notes. Vendors that keep pace, updating protocols in response to customer feedback and new safety data, distinguish themselves by supporting the larger research mission. It doesn’t just make commerce easier; it advances the whole field.
Those hoping for more open science and more reproducible research should encourage this next level of accountability. Rather than settling for “good enough,” teams benefit from products built to the standards expected in regulatory and patent-heavy environments. Science gains traction through shared, credible reference points—a lesson that extends beyond one molecule, and shapes the whole practice for years to come.
If there’s a single lesson from years working paper by paper, flask by flask, it’s that the small decisions in research infrastructure scale far beyond the moment. Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate doesn’t just enable quick wins in synthetic chemistry or unlock protected amines for complex medicinal projects. It supports a more robust, reliable, and confident approach to chemical discovery and application.
By surrounding ourselves with products built for clarity and consistency, not mystery and backtracking, we raise the bar for what science can and should accomplish. Every move toward transparency, reliability, and documentation builds trust not just in our data, but in the larger pursuit of shared scientific progress. As chemistry continues to deepen its embrace of new challenges—from greener synthesis to ever-more-complex targets—such foundational choices become ever more consequential.
Tert-Butyl 5-Tosyl-5H-Pyrrolo[2,3-B]Pyrazin-2-Ylcarbamate stands as a small but telling example of what happens when chemists, vendors, and research teams act with a view to both current needs and future standards. Every project launched, every protocol enabled, every discovery made with the help of such thoughtfully crafted building blocks strengthens the foundation for a better tomorrow in science.