| HS Code | 878310 |
| Name | Endothelin-2 |
| Synonyms | ET-2, ET2, EDN2 |
| Chemical Formula | C49H73N15O17S2 |
| Molecular Weight | 1050.3 Da |
| Amino Acid Sequence | PPETSPCECSPLSDKECVYFCHLDIIW |
| Source | Synthetic peptide or naturally occurring in humans |
| Biological Function | Vasoconstrictor peptide in the endothelin family |
| Uniprot Id | P20800 |
| Gene Symbol | EDN2 |
| Purity | Typically >95% by HPLC |
| Form | Lyophilized powder |
| Storage Temperature | -20°C |
As an accredited Endothelin-2 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Endothelin-2 is supplied as a white lyophilized powder in a sealed 100 μg vial, labeled with product and storage information. |
| Shipping | Endothelin-2 is shipped at ambient temperature unless otherwise specified. The product is securely packaged to prevent degradation and contamination during transit. For sensitive research applications, expedited shipping options and temperature-controlled packaging (such as dry ice) are available to maintain product integrity. Shipping documentation includes safety and handling instructions. |
| Storage | Endothelin-2 should be stored as a lyophilized powder or solution at -20°C or lower, protected from light and moisture. After reconstitution, aliquot and store at -20°C to -80°C to prevent repeated freeze-thaw cycles, which can degrade the peptide. Use appropriate containers to avoid adsorption and ensure stability. Always follow the manufacturer’s guidelines for optimal storage conditions. |
Competitive Endothelin-2 prices that fit your budget—flexible terms and customized quotes for every order.
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In a world shaped by innovation in the life sciences, products like Endothelin-2 keep researchers and clinical teams at the frontier of cardiovascular, renal, and pulmonary investigations. Our team has spent years working closely with academic institutions, biotech firms, and pharmaceutical partners to understand what truly matters when they need a robust peptide such as Endothelin-2. We manufacture Endothelin-2 as a synthetic peptide, with rigorous attention to sequence integrity, purity, and batch-to-batch reproducibility. Time in the lab has shown that what matters most is unambiguous sequence confirmation and freedom from trace contaminants. Consistent purity not only gives confidence in in vitro and in vivo work but also backs up reliable and repeatable results.
As manufacturers, we never stop thinking about how minute differences in peptide sequence or quality can mean the difference between inconclusive data and fundamental discovery. Endothelin-2 isn’t just another research peptide; its biological relevance, particularly in vascular tone modulation, cell proliferation, and inflammatory response studies, means every detail counts. Synthesis methods draw on solid-phase peptide chemistry, supported by HPLC purification and full-length sequence verification. Our operators calibrate every reaction step, inspect each chromatogram personally, and alternate lot testing under different analytical conditions. Years of studies emphasize that true performance comes from not cutting corners and never compromising on purification or analysis.
Each batch meets strict standards for purity, peptide content, and solubility. Our typical specification runs at or above 98% purity, as determined through both HPLC and mass spectrometry. We run amino acid composition checks and sequence validation to eliminate ambiguity or sequence scrambling. Peptide lyophilization allows long-term stability at -20°C, and the packaging can accommodate high-sensitivity research environments, from 1 mg to several grams per order. Researchers frequently ask about buffer compatibility and solubility: Endothelin-2 performs in common aqueous solutions, and we always encourage a gentle pH adjustment to support peptide integrity. Lyophilized form means rapid, residue-free dissolution and minimal foaming, an issue we have solved through both process adjustment and supplier engagement on vial materials.
Peptide handling protocols developed on our floor inform all our guidance: avoid repeated freeze-thaw cycles, limit prolonged exposure to light, and always measure exact volumes to prevent waste. Some researchers want Endothelin-2 in unique formats—PEGylated, labeled, cysteine-modified. We engage with them directly, discussing the downstream application, protein conjugation behavior, and possible derisking steps such as parallel pilot runs before full production.
We pay attention to peer-reviewed literature and real feedback from the bench. Endothelin-2, with its 21 amino acid sequence, plays a central role in both experimental and preclinical studies addressing pulmonary function, kidney disease, cardiac hypertrophy, and metabolic syndrome. As the field of endothelin research has grown, our technical team supports projects ranging from simple receptor binding assays to advanced in vivo models, such as rodent hemodynamics and cardiac hypertrophy induction.
Investigators send us feedback: consistency of vasoconstrictive response, reliability in animal infusion protocols, or behavior in complex cell culture experiments. Since endothelin receptor subtype preference varies across applications, we maintain access to extensive literature and work with collaborators to ensure our Endothelin-2 matches biological expectations for selectivity and potency.
Work with clinical contract companies and academic consortiums shows that clear, reproducible datasets emerge from predictable product behavior. No researcher wants to question whether an unexplained effect comes from material variability, so we continuously test our own products against commercially available standards and document findings in full traceable reports.
Endothelin-2 isn’t the only endothelin peptide in circulation. Distinguishing it from Endothelin-1 or Endothelin-3 means understanding real receptor pharmacology and the biological context. Endothelin-1 usually displays higher potency for the ETA receptor, making it dominant in vasoconstrictive models. Endothelin-3, on the other hand, leans toward ETB receptor interactions and plays a large role in neural crest biology.
Researchers turn to Endothelin-2 when they require the nuanced profile offered by its sequence: a structure that activates both ETA and ETB receptors, but with subtle differences in tissue response. From our perspective as manufacturers, this nuance affects both method development and application notes. A typical project requiring Endothelin-2 often deals with reproductive biology, ovarian follicle development, or the interplay between systemic and local vascular control. For those investigating respiratory fibrosis or pulmonary hypertension, the use of Endothelin-2 draws on both its similarity and distinctness from other isoforms—a layer of biological realism we support through tailored technical notes, lots of technical back-and-forth, and long-term partnerships with labs dedicated to dissecting endothelin biology.
Unlike generic catalog houses, our model prioritizes batch tracking, reference standard comparisons, and open dialogue about lot deviations. We keep impurity profiles narrow, using synthetic protection and deprotection strategies to give a clean product profile on every shipment. Parallel production lines mean we always have reserve capacity for scale-ups, unexpected surges in demand, or joint development with clinical study groups. This setup gives us direct oversight of production and allows immediate response to any quality issue customers bring to us, no matter how small.
Our quality assurance practices don’t come from checklists or regulatory manuals—they are shaped by discovery and hands-on time spent solving actual problems. Throughout the years, impurities such as truncated peptides, incomplete deprotection, or ring closure artifacts have tripped up many otherwise promising projects. Instead of settling for industry averages, we invest directly in medium-pressure chromatography, multi-angle light scattering, and cross-lab reference analytics.
Stability testing grows from questions asked by real users: how does this peptide stand up under cell culture conditions for 48 hours, what happens in extended animal infusions, or how does storage in mixed solvents impact long-term potency? These aren't theoretical exercises; they address real-life pain points that, if left unaddressed, frustrate researchers and threaten whole studies.
Our manufacturing process has changed over time, not because we chase the newest equipment, but because recurring customer input pinpoints bottlenecks or recurring lot deviations. It can be tempting to assume that synthesis platforms alone guarantee success. Our experience points elsewhere—constant operator oversight matters more, making small tweaks in resin selection, solvent purity, and final lyophilization cycle conditions to get consistent peptide results.
Endothelin-2 buyers come to us with varied backgrounds—from graduate students running first-time assays to principal investigators writing grants or designing translational animal studies. Many times, requests go far beyond catalogue listings: questions about peptide handling, co-administration protocols with endothelin antagonists, or how best to solubilize Endothelin-2 for microinjection. We handle them directly instead of kicking them to generic support desks.
Over years of conversation with researchers, we’ve found that early, honest communication saves both time and resources. Unexpected challenges—precipitation during dilution, rapid degradation in serum, or unexpected in vivo reactivity—crop up even with a well-characterized peptide. Our team draws on firsthand results to suggest practical approaches, such as slow, on-ice reconstitution, addition of stabilizing carrier proteins, or staggered aliquoting to avoid repeated thawing. The same real-world knowledge helps drive our technical documentation and training resources, continuously refined by feedback and our own rigorous stress testing.
Supply chain disruption has never been just an abstract worry; we’ve seen it up close. Over the years, solvent shortages, resin allocation, and transport delays have put pressure on even stable production environments. We choose direct engagement with strategic suppliers, often placing standing orders or keeping raw material inventory buffers above what a financial analyst might recommend. These decisions pay off when the goal is providing Endothelin-2 to programs on tight timelines, whether that means shipping single-milligram packs for pilot studies or scaling up for multi-gram runs linked to grant-funded animal work.
Another persistent challenge: counterfeits and subpar peptides entering the global market. It’s not just a paperwork problem. Facilities operating outside of regulatory scrutiny can release peptides lacking sequence confirmation, sometimes with residual coupling agents or even microbial contamination. We frequently help customers re-test peptides sourced from uncontrolled channels, and more than once we’ve traced failed experiments back to impurities or mislabeling from such providers. Maintaining site visits to our key suppliers and routine in-house batch comparison remains our best defense.
Some of the greatest advances in translational medicine hinge on nuanced peptide signaling. As global research priorities shift towards cardiovascular disease, chronic kidney injury, pulmonary hypertension, and metabolic syndrome, Endothelin-2’s centrality grows. Our customers report using it for everything from basic pathway mapping to cutting-edge gene editing projects, where the presence or absence of a single peptide can shift entire biological landscapes.
Long before CRISPR and modern gene modulation, basic synthetic peptides like Endothelin-2 allowed scientists to untangle receptor pharmacology in clean, manageable models. Those foundational strengths persist, and as manufacturing expectations have grown, so have the demands for purity, scalability, and transparent sourcing. We’ve taken this challenge seriously, not only adapting to regulatory guidelines, but internalizing the logic and empirical basis behind every check, batch report, or release test.
Our involvement with academic journals and conference workshops makes it clear how deeply the peptide landscape has changed. No longer are peptides seen simply as tools for receptor mapping; they have become the backbone of functional genomics, biomarker identification, and next-generation cell therapy protocols. In these domains, even minor inconsistencies risk derailing years of careful work.
Other manufacturers can reach comparable purity benchmarks on paper—what makes decades of direct contact with research teams so important is the anticipation of obstacles before they disrupt projects. Direct lines of communication let us anticipate changes in project scale, build custom batch reserves, or engineer slight modifications to restore solubility or compatibility without waiting on process validation cycles. Flexibility, reinforced by strong technical awareness, ensures we stay ahead of shifting project requirements or regulatory environments.
We’ve implemented process changes by keeping operators and chemists in the conversation—not just management. From fine-tuning the degree of trifluoroacetic acid removal after cleavage, to monitoring final bulk drying cycles for autoxidation or aggregation, every touchpoint is built around improved project outcomes. Issues like insolubility or handling complexity get treated not as quirks to work around, but as chances to revisit the synthesis or lyophilization approach. The result: consistent, high-quality Endothelin-2 that meets evolving research needs, whether in foundational discovery, applied medicine, or the pipeline to translational therapies.
Our contribution to the life sciences rests not just on the chemicals we deliver, but on the trust we build through transparency, open challenge resolution, and concrete technical improvement. Customers can request full documentation, impurity profiles, sequence analysis, and analytic tracebacks for any lot. We encourage independent validation and have invited client-side analysts to tour our synthesis and quality control labs.
In an industry where “good enough” often passes as a finished product, we know the risks of taking shortcuts. Real scientific progress depends on raw materials and reagents that perform as promised, without last-minute surprises. By standing behind our Endothelin-2 and working side-by-side with our research partners, we help ensure their results tell them something new about the world—not just something new about the variability of their inputs.
Endothelin-2 manufacturing isn’t about chasing trends or competing on pricing alone. Our customers expect us to deliver more than just a chemical—they depend on our attention to detail, integrity in sourcing, and commitment to scientific rigor. The trust we’ve built—one lot at a time, across years of challenging projects and evolving research priorities—comes from knowing the stakes for every lab that opens a vial of our peptide.
The end user may never see the technician validating the chromatography or the chemist troubleshooting a finicky coupling reaction, but the impact ripples through lab meetings, grant applications, and published results. We accept responsibility for every batch that leaves our floor because we’ve stood in your shoes, solved similar puzzles, and seen the difference genuine quality control can make.
Endothelin-2 forms a small part of a broader scientific endeavor, but the care put into every synthesis, purification, and validation step turns complicated, high-stakes research from aspiration into achievement. Our track record, informed by hands-on, iterative learning, assures that when you turn to this peptide, you receive the very best foundation for discovery, knowledge, and progress in your field.