Selank

Selank is a synthetic heptapeptide analog of tuftsin with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. Preclinical research investigates Selank in experimental models involving stress-related responses, cognitive function, neurobiological signaling, and immune regulation.

The peptide is supplied as a lyophilized powder with ≥99% HPLC purity and has a defined molecular profile, including CAS number 129954-34-3, molecular formula C33H57N11O9, and molar mass 751.89 g/mol.

What is Selank?

Selank is a synthetic peptide derived from the structural concept of tuftsin, a naturally occurring tetrapeptide involved in immune-related research.

The supplied Selank sequence is Thr-Lys-Pro-Arg-Pro-Gly-Pro, making it a seven-amino-acid peptide. Research interest extends across neurobiological and immunological models, including experimental studies of stress responses, cognition, and immune signaling.

Selank is also identified by the synonyms TKPRPGP and tuftsin analog peptide.

The reported effects described in research literature are preclinical and should not be interpreted as established therapeutic effects in humans.

Selank specifications

Product detail	Specification
Product	Selank
CAS Number	129954-34-3
Molecular formula	C33H57N11O9
Molar mass	751.89 g/mol
Sequence	Thr-Lys-Pro-Arg-Pro-Gly-Pro
Length	7 amino acids
Synonyms	Selank; TKPRPGP; tuftsin analog peptide
Purity	≥99% (HPLC)
Form	Lyophilized powder
Long-term storage	−20°C (−4°F)
Reconstituted storage	2–8°C (36–46°F)
Reconstitution solvent	Bacteriostatic water for laboratory use
Intended use	Laboratory research only

What is Selank studied for?

Selank is investigated across several areas of preclinical neuroscience and immunology research.

Stress and behavioral research

Experimental studies examine Selank in models involving stress responses and behavioral adaptation. Research has explored its relationship with neurochemical systems associated with stress regulation.

Cognitive research

Selank has been investigated in experimental models involving learning, memory, and cognitive performance, including models where stress or aging may influence cognitive outcomes.

Neurobiological signaling

Research has examined Selank in relation to signaling systems including GABAergic pathways and BDNF-related mechanisms. These studies are intended to help characterize the peptide's effects within experimental neural systems.

Immune research

Because Selank is structurally related to tuftsin, researchers have also investigated it in models involving immune and inflammatory regulation.

These research areas represent experimental investigation and do not establish Selank as a clinically proven treatment for anxiety, cognitive impairment, stress, or immune conditions.

What makes Selank different?

Selank has a compact seven-amino-acid structure and is specifically characterized as a synthetic tuftsin analog.

Its defined sequence is:

Thr-Lys-Pro-Arg-Pro-Gly-Pro

This distinguishes Selank from longer peptides used in neurological or immune research. The supplied material also has a stated purity of ≥99% by HPLC, providing an important analytical specification for researchers comparing peptide materials.

Storage and handling

The supplied specifications indicate −20°C (−4°F) for long-term storage and 2–8°C (36–46°F) after reconstitution.

Bacteriostatic water for laboratory use is listed as the reconstitution solvent.

Researchers should follow the product documentation and applicable laboratory procedures when storing, preparing, and handling Selank. Specific preparation and handling conditions should be determined by the requirements of the research protocol.

What should researchers look for when buying Selank?

If you are comparing a Selank peptide supplier or looking to buy Selank online, verify the product's molecular identity and analytical specifications before ordering.

Key details to review include:

• Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro
• CAS number: 129954-34-3
• Molecular formula: C33H57N11O9
• Molar mass: 751.89 g/mol
• Purity: ≥99% HPLC
• Form: Lyophilized powder
• Storage: −20°C long-term; 2–8°C after reconstitution

Terms such as “nootropic peptide” or “anxiolytic peptide” may describe areas investigated in experimental research, but they should not be presented as established human-use claims.

Frequently asked questions

What is Selank?

Selank is a synthetic seven-amino-acid tuftsin analog studied in preclinical research involving stress responses, cognitive function, neurobiological signaling, and immune regulation.

What is the sequence of Selank?

The sequence is Thr-Lys-Pro-Arg-Pro-Gly-Pro.

How many amino acids are in Selank?

Selank contains seven amino acids, making it a heptapeptide.

What is Selank studied for?

Preclinical research investigates Selank in areas including stress-related responses, cognitive models, GABAergic and BDNF-related signaling, and immune or inflammatory pathways.

Is Selank a tuftsin peptide?

Selank is described as a synthetic analog of tuftsin. Its sequence and molecular structure differ from native tuftsin.

What is the CAS number for Selank?

The listed CAS number is 129954-34-3.

What is the molecular formula of Selank?

The supplied molecular formula is C33H57N11O9.

What is the molar mass of Selank?

The listed molar mass is 751.89 g/mol.

What is the purity of Selank?

The specified purity is ≥99% by HPLC.

What form is Selank supplied in?

Selank is supplied as a lyophilized powder.

How should Selank be stored?

The supplied specifications list −20°C (−4°F) for long-term storage and 2–8°C (36–46°F) after reconstitution.

What is used to reconstitute Selank?

The supplied product information lists bacteriostatic water for laboratory use as the reconstitution solvent.

Is Selank intended for human use?

No. This product is intended for laboratory research only and is not for human or veterinary consumption.