- HPLC-assayed purity of ≥99%
- Certificate of analysis tied to your lot number
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Selank Nasal Spray
Ready-mixed research solution of the tuftsin analogue Selank, 15 mL spray bottle
In stock2 formats availableCAS 129954-34-3
€85Range €85 – €140
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Ask about this listing or request its COA- FormPre-mixed aqueous solution, 15 mL bottle with metered spray pump
- Mol. weight751.89 g/mol
- Research areasGABAergic transmission, anxiolytic-type behavioural models, enkephalin-degrading enzyme activity, immune and stress-related gene expression
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
This product contains the synthetic heptapeptide Selank (CAS 129954-34-3, Thr-Lys-Pro-Arg-Pro-Gly-Pro) as a ready-made aqueous solution in a 15 mL bottle with a metered pump.
- CAS number
- 129954-34-3
- Molecular formula
- C33H57N11O9
- Molecular weight
- 751.89 g/mol
- Amino acid sequence
- Thr-Lys-Pro-Arg-Pro-Gly-Pro
- Form
- Pre-mixed aqueous solution, 15 mL bottle with metered spray pump
- Storage
- 2–8 °C, upright, protected from light; do not freeze the filled bottle
- Available sizes
- 15 mL · 10 mg · 15 mL · 20 mg
For research use only. Not for human consumption.
This product contains the synthetic heptapeptide Selank (CAS 129954-34-3, Thr-Lys-Pro-Arg-Pro-Gly-Pro) as a ready-made aqueous solution in a 15 mL bottle with a metered pump. Selank takes tuftsin — Thr-Lys-Pro-Arg, the natural tetrapeptide cleaved from the heavy chain of immunoglobulin G — and adds Pro-Gly-Pro at the C-terminus. That proline-rich extension greatly slows exopeptidases, turning a very short-lived fragment into a stable peptide that is easy to synthesise for research.
The same 15 mL bottle is available in two strengths: 10 mg (about 0.67 mg/mL) or 20 mg (about 1.33 mg/mL). Since it arrives pre-formulated, labs running mucosal-delivery or format-comparison studies can start from a documented concentration without reconstituting powder, eliminating weighing and dilution errors from the protocol.
What sets this listing apart
Selank Nasal Spray – nasal spray, 15 mL. Pre-mixed aqueous solution, 15 mL bottle with metered spray pump. Other Selank listings differ in format, fill or combination partners; the specification and COA always refer to the listing you order.
Same compound, other listings
Specifications
Identity
- CAS number
- 129954-34-3
- Molecular formula
- C33H57N11O9
- Molecular weight
- 751.89 g/mol
- Amino acid sequence
- Thr-Lys-Pro-Arg-Pro-Gly-Pro
- Peptide class
- Synthetic tuftsin (Thr-Lys-Pro-Arg) analogue, heptapeptide
Supply & purity
- Form
- Pre-mixed aqueous solution, 15 mL bottle with metered spray pump
- Available sizes
- 15 mL (10 mg total), 15 mL (20 mg total)
Additional detail
- Concentration
- Approximately 0.67 mg/mL (10 mg fill) or 1.33 mg/mL (20 mg fill)
- Purity (raw material)
- ≥99% by HPLC; lot-matched COA available
- Amino acid count
- 7 residues
- Research areas
- GABAergic transmission, anxiolytic-type behavioural models, enkephalin-degrading enzyme activity, immune and stress-related gene expression
- Reconstitution
- None required — supplied pre-mixed and ready to dispense
- Storage
- 2–8 °C, upright, protected from light; do not freeze the filled bottle
Questions about Selank Nasal Spray
What amount of Selank is in a bottle?
Either 10 mg (≈0.67 mg/mL) or 20 mg (≈1.33 mg/mL), both in the same 15 mL bottle. The concentration appears on the label and again on the lot's Certificate of Analysis.
Has the peptide been tested independently, and is there a COA?
Yes. The Selank used here is analysed by an independent lab with HPLC to ≥99% purity and identity-confirmed by mass spectrometry; the lot COA is available. Check that the bottle's lot matches it before recording results.
What is Selank chemically?
A synthetic seven-residue peptide — Thr-Lys-Pro-Arg-Pro-Gly-Pro, CAS 129954-34-3, C33H57N11O9, 751.89 g/mol — made by extending the immunomodulatory tetrapeptide tuftsin with Pro-Gly-Pro, which substantially delays enzymatic breakdown.
How does its research use differ from Semax's?
Both are Pro-Gly-Pro-stabilised heptapeptides from Russian peptide chemistry, but their literatures go separate ways: Semax studies focus on BDNF, neurotrophins and attention models, Selank studies on GABAergic transmission, enkephalinase inhibition and stress-response markers.
Is reconstitution needed?
No — it comes pre-mixed at a stated concentration, with no weighing, solvent or filtering. That is what sets it apart from the lyophilised Selank vial and why labs pick it for format-comparison studies.
How should I store the bottle?
Upright in the fridge at 2–8 °C, protected from light, never frozen. Peptides in solution are less stable than powder, so keep the in-use period short and write the opening date next to the lot number on the label.
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