Representative specimen data. These are typical results for this product. Actual results are batch-specific and are printed on the certificate for the batch number on your vial. Research use only.
| Parameter | Result |
|---|---|
| Product name | Selank |
| CAS number | 129954-34-3 |
| Molecular formula | C33H57N11O9 |
| Molecular weight | 751.9 g/mol |
| Appearance | White to off-white powder |
| Test method | RP-HPLC (C18), UV detection at 220 nm |
| Purity (HPLC) | 98.50% (specification ≥ 98.5%) |
| Mass-spec identity | ESI-MS (positive): [M+H]+ 752.9, confirming 751.9 g/mol |
| Water content | 4.8% (Karl Fischer, specification ≤ 10.0%) |
| Analysis date | Representative specimen — the analysis date is printed on each batch certificate |
- OP Labs formerly Oxford Peptides
- Batch HPLC tested at 98.5%+ purity
- Store frozen long term or in fridge when ready to be used
- Sold for research purposes only
- Contact us for Wholesale Orders
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SELANK
Synonyms / Designations: Selank, Thr–Lys–Pro–Arg–Pro–Gly–Pro
CAS Number: 129954-34-3
Molecular Formula: C33H57N11O9
Molecular Weight: ~751.9 g/mol
Peptide Length: 7 amino acids
Peptide Type: Synthetic neuropeptide analogue
Purity: ≥ 99 % (HPLC, typical)
Appearance: White to off-white lyophilised powder
Pack Size: 5 mg (typical)
Storage: Desiccated, protected from light, stored at –20 °C or below
Solubility: Soluble in water and buffered aqueous solutions
Description & Mechanism
Selank is a synthetic heptapeptide derived from the endogenous immunomodulatory peptide tuftsin, modified to enhance stability and suitability for experimental investigation. It has been developed as a research tool for studying neuropeptide signalling, neuroimmune interactions, and central nervous system regulatory pathways.
In biochemical and cellular research systems, Selank has been examined for its influence on neuronal signalling pathways, including modulation of neurotransmitter systems and stress-response–associated signalling cascades. Experimental models often investigate its effects on gene expression, neuroimmune communication, and peptide–receptor interactions. Observed molecular responses are dependent on experimental design, concentration, and model system.
Applications in Research
- As a molecular probe for studying neuropeptide-mediated signalling pathways.
- Investigation of neuroimmune interactions and CNS regulatory mechanisms.
- In vitro and in vivo studies examining peptide stability and signalling behaviour.
- Use as a reference compound in neurobiology and peptide signalling research.
Specifications Summary
Purity (HPLC): ≥ 99 %
Appearance: White to off-white lyophilised powder
Molecular Weight: ~751.9 g/mol
Peptide Type: Synthetic neuropeptide
Solubility: Water, buffered aqueous solutions
Storage: –20 °C, desiccated, protected from light
Pack Size: 5 mg
Handling, Reconstitution & Stability
- Weigh under dry conditions; peptide is hygroscopic.
- Reconstitute in sterile water or appropriate buffered aqueous solution.
- Avoid vigorous agitation during dissolution.
- Filter sterilize if required prior to use.
- Aliquot and store reconstituted solutions at –20 °C or lower.
- Avoid repeated freeze–thaw cycles.
Precautions & Notes
- Experimental behaviour of Selank is influenced by neuronal model, receptor expression, peptide concentration, and exposure duration.
- Buffer composition, pH, and ionic strength may affect peptide stability.
- Appropriate controls are recommended.
- Intended strictly for laboratory research use.
References
Myasoedov N.F. et al. Tuftsin-derived peptides and neuroimmune regulation. Journal of Peptide Science, 2001.
https://pubmed.ncbi.nlm.nih.gov/11455544/
Ashmarin I.P. et al. Regulatory neuropeptides in central nervous system function. Neuroscience and Behavioral Physiology, 2005.
https://pubmed.ncbi.nlm.nih.gov/16059633/
Zozulya A.A. et al. Neuropeptide Selank and stress-related signalling. Bulletin of Experimental Biology and Medicine, 2010.
https://pubmed.ncbi.nlm.nih.gov/20820850/
Keywords: Selank, Synthetic Neuropeptide, Neuroimmune Signalling, CNS Regulation
Paul Letley (Verified Purchase) –
Julie (Verified Purchase) –
I have no idea, I’ve only just ordered it so not even received yet.
John (Verified Purchase) –
Selank did their job, good quality and proper operation. Add to that a good price and we have a complete set. Regards.
Jonny Teasdale (Verified Purchase) –
kasha Grimes (Verified Purchase) –
Joanna –
Works wonders
Sam (Verified Purchase) –
Not used as yet
Reza Assadi –
Very good beautiful lovely speedy delivery 👌 👍 exactly what I ordered 😀 😊 😁 Thanks so much 🙏
Kevin Kendell –
Kevin Kendell –
Aaron (Verified Purchase) –
Item as expected, test subject is responding well to the research peptides. Great product as always
Marie Georgiou (Verified Purchase) –
Jared (Verified Purchase) –
Good quality
Ahmad Saleh (Verified Purchase) –
Aldis A. (Verified Purchase) –
Good services and quality products. Thank you with respect Aldis.
Ivan I. (Verified Purchase) –
Anonymous –
Kenneth Dilliway –
Ben G. –
I have found Selank to be very beneficial in high stress situations allowing me to be calmly focused. OP labs quality product with super fast delivery.
Kelly Jackson –
Anonymous –
Anonymous –
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John –
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Antonino Carollo –
Jonathan Lee –
Vladimir B. –
Anonymous –
Kenneth Dilliway –
Ben G. –
I have found Selank to be very beneficial in high stress situations allowing me to be calmly focused. OP labs quality product with super fast delivery.
Charlie B. –
As always OP Labs gave me great product and fastest delivery. Thanks again 🙂
Kelly Jackson –
Anonymous –
Anonymous –
Anonymous –
David Moir –
This gives me a calm clear trail of thought. Very happy with this.
John –
Mate Janos Andrasi –
Amazing product! Good price and smooth, elevated mood feeling – definateky works on serotonin
Anonymous –
Peter W. –
It looks good but ill be honest ive not used it yet BUT if any of there other products are to go by im sure this will great stuff
Anonymous –
Goes well with dsip
Antonino Carollo –
Jonathan Lee –
Vladimir B. –
Matthew McDermott –
Superb service, very fast delivery, as with most peptides, the effects are not acute, so can’t comment on that, but they are certainly sterile.
I have ordered multiple times since my first order, which I think says everything?
Iain –
Excellent product and fast delivery.
Lisa S. –
Got it delivered in record time.
Charlotte Palmer –
IÕm so impressed.
Mary J –
Amazing quality.
Clare M. –
Fast shipping, really impressed.
Paula P. –
Excellent value for money.
Gemma –
Outstanding product.
Karen Yvonne Hills –
ItÕs exactly what I needed.
Alice –
Beyond my expectations.
abigail –
Works great.
Janet –
Love it.
Caron Butler –
Lightning fast shipping, highly recommend.
Angela S. –
Super fast shipping, very happy.
Donna H. –
Arrived so fast, very happy!
Helen Anderson –
Arrived fast, no complaints at all.
Linda Barnes –
Totally worth the price.
David Moir –
Works best first thing in the morning, gives a real edge.
David Moir –
Works best first thing in the morning, gives a real edge.
Nicoletta C. –
Nicoletta C. –
Rory Carson –
Rory Carson –
Russell –
Russell –
Scott –
Product is good quality customer service isn’t great
Scott –
Product is good quality customer service isn’t great
Fiona –
Just awesome.
Anonymous –
Absolutely love the quality.
Anonymous –
IÕve had faster deliveries from other places.
Laura R. –
Had to wait ages for this.
Sue Bennett –
IÕm blown away by the quality.
Nicola M. –
I love how this works.
Scott Cooksley –
Arrived quickly, exactly what I wanted.
Anonymous –
The best IÕve seen.
Jarrad Harries –
Well worth it.
Anonymous –
Perfect for my needs.
Jo Kentish –
Super happy with my decision.
Jane Runnett –
Love this item.