Description
Selank 5mg — tuftsin analogue research peptide
Selank 5mg is a synthetic heptapeptide supplied as lyophilized powder for neuroscience-oriented laboratory research. Five milligrams is a pilot or single-arm quantity.
Ships from within the USA. Supplied for laboratory research use only, and not for human or veterinary use.
Other sizes. This is the 5mg vial. The same compound is also supplied as a 10mg vial.
About Selank 5mg
Selank is a tuftsin analogue extended with a proline-glycine-proline tripeptide, a modification that markedly slows degradation relative to tuftsin itself. The published laboratory work is largely rodent behavioral pharmacology together with in vitro studies of monoamine turnover and of expression changes in genes associated with neurotrophic and inflammatory signaling.
The proline-rich C-terminal extension has an analytical consequence worth knowing: like other proline-containing sequences it can broaden on reverse-phase HPLC, which is a property of the molecule rather than a sign of a second component.
Research applications of Selank 5mg
- Monoamine turnover measurements in brain tissue preparations
- Gene expression profiling in cultured neuronal models
- Comparative work against tuftsin and other short peptide analogues
- Peptide stability and enzymatic degradation research
- Rodent behavioral pharmacology protocols conducted under institutional approval
How this vial is supplied and handled
The vial arrives as a lyophilized cake or film in a sealed, stoppered vial. Keep it sealed and frozen at -20 °C until the day it is opened; brief periods at ambient temperature in transit are expected and do not compromise dry powder. Let the vial reach room temperature before breaking the seal so atmospheric moisture does not condense onto the cake.
Reconstitute by running the diluent slowly down the inside wall of the vial rather than onto the powder, and swirl rather than shake — peptides denature at an air-liquid interface. Hold the solution at 2–8 °C for short-term use, or aliquot and freeze for longer, and avoid repeated freeze-thaw cycles, the most common cause of a quiet loss of activity between one experiment and the next.
Ordering SELANK 5mg in the United States
SELANK 5mg ships to research laboratories throughout the USA, dispatched domestically from our US facility. Every parcel is tracked, and because the material stays inside the country there is no customs entry, no broker fee and no border hold between our shelf and your bench.
Shipping is calculated at checkout and orders over $200 USD ship free anywhere in the United States. Bulk pricing is available on larger quantities — email us before checkout and we will quote it.
Purity guarantee
If an independent laboratory tests this material and reports purity below the figure stated on its certificate, we refund the order and reimburse what the test cost you. Send the lot number printed on the vial along with the third-party report and we will settle it without argument.
The guarantee covers the analysis, not the outcome of your work. What Selank 5mg does in your model is your experiment; what is in the vial is our responsibility.
Research use only
Selank 5mg is supplied strictly for laboratory research carried out by qualified professionals. It is not a drug, a dietary supplement or a medical device.
It has not been evaluated or approved by the U.S. Food and Drug Administration for any use. It is not for human or veterinary consumption, for clinical investigation in human subjects, or for therapeutic, diagnostic or cosmetic application of any kind.
We do not provide dosing, administration or protocol advice, and we cannot answer questions about use in people or animals. By ordering, you confirm that you are acquiring this material for lawful research in a controlled laboratory setting and that you will not redistribute it for any other purpose.
Compound identity and specification
Identity data for Selank, published so the material can be checked against an independent record rather than taken on trust. The formula, mass and registry number below are verified against PubChem and can be looked up directly.
| Compound | Selank |
|---|---|
| Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro (TKPRPGP) |
| Molecular formula | C33H57N11O9 |
| Molecular mass | 751.9 g/mol |
| CAS registry number | 129954-34-3 |
| PubChem | CID 11765600 |
| Vial content | 5 mg |
| Physical form | Lyophilized powder in a sealed vial |
| Analysis | Third-party HPLC where a report has been commissioned; see the certificates of analysis page |
| Supplied for | Laboratory research use only |
Analytical note — Selank. Three of seven residues are proline, which produces conformational peak broadening, and the lysine and arginine make the peptide strongly basic with no acidic residue to offset them. Ion-pairing additive in the mobile phase is doing real work on this one.
Identity references The molecular formula, molecular mass and CAS registry number above are taken from the PubChem record linked in the table, not from a supplier datasheet, so every figure can be checked against an independent source in one click. Sequences are given as reported in the peptide literature, in the one-letter or three-letter convention as appropriate, with any non-standard residue named in full. Where a compound exists in more than one form — a free peptide and a metal complex, a fragment and its parent protein, a modified and an unmodified analog — the form supplied is the one identified here, and the mass on the certificate of analysis is what distinguishes it.
Research Literature
Peer-reviewed studies involving this compound and its class. All findings listed are from in vitro, cell culture or animal models and are provided for scientific reference only. This product is supplied for laboratory research and is not approved for human consumption, clinical, or veterinary use.
- Semenova TP, et al. Eksp Klin Farmakol. 2009;72(4):6-8. In male Wistar rats pretreated with the serotonin synthesis inhibitor PCPA, measured serotonin turnover in brainstem and neocortex. Source · PMID 19803361
- Kolomin T, et al. Regul Pept. 2011;170(1-3):18-23. In mouse spleen, measured expression of inflammation-related genes following administration. Source · PMID 21609736
- Volkova A, et al. Front Pharmacol. 2016;7:31. In rat frontal cortex, measured expression of 84 GABAergic and neurotransmission-related genes 1-3 hours after administration, against diazepam. Source · PMID 26924987
Every certificate of analysis we hold is collected on the certificates of analysis page. Where a lot has not been independently tested we do not claim that it has.
Related Research Compounds
Browse more compounds in Neuropeptides, or view the full research peptide catalog.





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