Selank
Research Use Only | Not for Human Consumption
A synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from tuftsin, supplied in lyophilized form.
Currently unavailable
Leave your email and we’ll let you know when the next batch is released.
Chemistry
| CAS# | Formula | Molar Mass |
|---|---|---|
| CAS Number: 129954-34-3 | Molecular Formula: C33H57N11O9 | Molar Mass: 751.9 g/mol |
· Free 2-day shipping
A synthetic heptapeptide derived from the natural immune peptide tuftsin.
A synthetic heptapeptide derived from the immunomodulatory tetrapeptide tuftsin by addition of a C-terminal Pro-Gly-Pro sequence. Selank has been examined in preclinical models of GABAergic signaling, monoamine metabolism, and tuftsin-related immunomodulatory pathways.
What is Selank?
Selank was developed in the late 1990s at the Institute of Molecular Genetics of the Russian Academy of Sciences, under the direction of Nikolai Myasoedov. The research team was exploring derivatives of tuftsin, an immunomodulatory tetrapeptide naturally present in the body as part of the immunoglobulin G heavy chain.
The scientists added a Pro-Gly-Pro sequence to tuftsin, producing a heptapeptide with greater metabolic stability. In preclinical characterization work, the modified molecule retained tuftsin-associated immunomodulatory activity and was also observed to influence central-nervous-system endpoints in rodent assays.
Selank has been the subject of extensive preclinical investigation since its development, with published research examining GABAergic signaling, monoamine metabolism, immunomodulatory activity, and neurotrophic-factor expression. This product is intended for research use only.
How should Selank be stored?
All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Prepared samples must be stored in the fridge to maintain stability, and remain stable for up to 30 days when properly refrigerated.
Certificate of Analysis
All Selank batches are independently tested by a third-party laboratory for purity and identity verification via HPLC with UV detection coupled with Mass Spectrometry.
HPLC Purity
99.749%
Product
Selank — 10mg
Lot Number
SEL312
Appearance
White Lyophilized Powder
Test Method
HPLC-UV / Mass Spectrometry
Report Date
03/15/2026
COA Number
2603130185
Laboratory
Freedom Diagnostics
No Certificate of Analysis is available for the selected size yet. Contact support for batch-specific documentation.
COA documents are updated with each new batch. Contact support for batch-specific documentation.
References
- Seredenin SB, et al. Anxiolytic action of the synthetic peptide Selank. Bulletin of Experimental Biology and Medicine. 1998.
- Kozlovskii II, et al. The optimizing action of the synthetic peptide Selank on a conditioned active avoidance reflex in rats. Neuroscience and Behavioral Physiology. 2003. PubMed: 14969422
- Zozulia AA, et al. Effects of Selank on the immunity status in patients with generalized anxiety disorder. Zhurnal Nevrologii i Psikhiatrii. 2008.



