Selank Selank PRODUCT IMAGE
HPLC VERIFIED COA SUPPLIED ≥98.9% PURITY
— Cognitive

Selank Synthetic Heptapeptide (TKPRPGP)

For in vitro research use only. Selank is not for human or veterinary consumption, diagnosis, treatment, or prevention of any condition.

Selank is a synthetic peptide made up of 7 amino acids, based on a fragment of tuftsin — a small protein naturally involved in immune function. In rodent studies, researchers have observed calmer animal behaviour without the sedation (drowsiness) typically seen with classical anxiety-reducing compounds, making it a distinctive tool for studying stress and anxiety pathways in the brain.

CAS Number
129954-34-3
Molecular Formula
C₃₃H₅₇N₉O₁₁
HPLC Purity
98.9% (batch-verified)
Form
Lyophilised powder
Storage
2–8°C, desiccated, protected from light
Classification
Research reagent — in vitro use only

Research overview

Selank is a synthetic 7-amino-acid peptide — a short chain of amino acids made in a laboratory — based on a fragment of tuftsin, a naturally occurring protein involved in immune function. In rodent studies, researchers have documented calmer behaviour in treated animals without the sedation (drowsiness or reduced activity) typically associated with classical anxiolytic compounds (substances studied for their effects on anxiety). This profile makes Selank a distinctive research tool for studying stress and anxiety pathways. Studies have also examined its effects on BDNF (Brain-Derived Neurotrophic Factor — a protein that supports brain cell survival, growth, and connectivity) levels in neuronal tissue, alongside its interactions with the GABAergic system (the brain's main calming signalling network) and serotonergic pathways (the brain's serotonin signalling system). For research use only. Not for human or veterinary consumption.

Summary paraphrased from the peer-reviewed preclinical literature. Full citations will be available in the research library. For in vitro research use only.

Compound specifications

Common nameSelank
Full nameSynthetic Heptapeptide (TKPRPGP)
CAS number129954-34-3
Molecular formulaC₃₃H₅₇N₉O₁₁
Molecular weight751.9 g/mol
SequenceTKPRPGP
HPLC purity98.9% (batch-verified)
AppearanceWhite to off-white lyophilised powder
SolubilityBacteriostatic water, sterile saline
Storage (lyophilised)2–8°C, protected from light
Storage (reconstituted)2–8°C, up to 28 days
Supplied as10mg

Batch testing and certificate of analysis

Every batch of Selank is third-party HPLC-tested prior to dispatch. A batch-specific certificate of analysis documenting HPLC purity, mass spectrometry confirmation, and appearance is supplied with every order.

Previous batch CoAs are archived in the CoA library. For batch-specific CoA requests prior to purchase, contact veloxpeps@gmail.com.

Frequently Asked Research-Use Questions

What purity is Velox Peptides Selank?
Selank is supplied at 98.9% HPLC-verified purity. A certificate of analysis is provided with every order. Every batch is third-party tested before dispatch.
How is Selank supplied and reconstituted for research use?
Selank is supplied as a lyophilised powder in sterile single-use vials. For in vitro research use, reconstitution is performed with bacteriostatic water. See the reconstitution calculator for volume calculations based on required concentration.
What is Selank used for in preclinical research?
Selank is studied in the peer-reviewed literature across the pathways described in the research overview above. Velox Peptides supplies Selank strictly as a research reagent for in vitro use by qualified researchers. It is not a medicinal product and is not for human or veterinary consumption.
What is the CAS number for Selank?
The CAS registry number for Selank is 129954-34-3. This identifier is listed on every batch certificate of analysis supplied with orders.

For in vitro research use only. Selank is supplied solely as a research reagent for qualified professionals conducting in vitro or animal-model studies. It is not a medicinal product within the meaning of the Human Medicines Regulations 2012. It has not been evaluated by the MHRA or FDA. It is not intended for human or veterinary consumption, diagnosis, treatment, cure, or prevention of any condition. Any use outside lawful scientific research is outside the scope of sale.

Compliance statement. Velox Peptides supplies research reagents for in vitro use by qualified researchers. Every compound is sold strictly as a research reagent. No product is a medicinal product within the meaning of the Human Medicines Regulations 2012. No product has been evaluated by the MHRA or FDA. No product is intended for human or veterinary consumption, diagnosis, treatment, cure, or prevention of any condition. Any use outside lawful scientific research is outside the scope of sale. See our Research Use Policy and MHRA Statement.