Selank N-Acetyl Amidate 10mg – Protide Health USA

Selank N-Acetyl Amidate Overview & Technical Specifications

Selank N-Acetyl Amidate is a terminally modified analogue of the tuftsin-derived heptapeptide Selank.

Its sequence is:

Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH₂

or:

Ac-TKPRPGP-NH₂

This structure differs from standard Selank at both termini:

• The N-terminus is acetylated.
• The C-terminus is amidated.

For this fully modified form, the chemically consistent molecular formula is:

C35H60N12O9

with an average molecular weight of approximately:

792.94 g/mol

The supplied PubChem CID 133082488 should not be used for this exact product identity because that record corresponds to N-acetyl Selank with a free C-terminal carboxyl group, represented as Ac-TKPRPGP-OH rather than Ac-TKPRPGP-NH₂.

Protide Health supplies Selank N-Acetyl Amidate as 10mg of 99% purity, HPLC-MS verified, third-party tested lyophilized research material in a 3mL vial.

Technical Specifications

• Product Name: Selank N-Acetyl Amidate
• Synonyms: N-Acetyl Selank Amidate, Ac-Selank-NH₂
• Quantity: 10mg
• Form: Lyophilized powder
• Vial Size: 3mL
• Purity: 99%
• Testing: HPLC-MS verified; third-party tested
• Peptide Type: Synthetic modified heptapeptide
• Parent Peptide: Selank
• Parent Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro
• Modified Sequence: Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH₂
• Abbreviated Sequence: Ac-TKPRPGP-NH₂
• Molecular Formula: C35H60N12O9
• Molecular Weight: Approximately 792.94 g/mol
• Appearance: White to off-white lyophilized powder
• Solubility: Soluble in water
• Storage: Store sealed at ≤6°C and protected from heat, light, and moisture
• Research Use: Biochemical, neuropeptide, cellular, molecular, analytical, and qualified preclinical research only

Selank Structural Modification Research

Standard Selank is the heptapeptide:

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

The N-acetyl amidate analogue adds two terminal modifications:

N-terminal acetylation

• Converts the terminal amino group into an acetylated amide.

C-terminal amidation

• Replaces the terminal carboxylic acid group with a carboxamide.

These modifications produce a chemically distinct analogue rather than simply another name for standard Selank.

Terminal modification can alter properties such as:

• Charge state
• Enzymatic susceptibility
• Molecular recognition
• Peptide stability
• Binding behavior
• Analytical mass

However, such effects must be measured directly for this specific analogue rather than assumed from standard Selank.

Important PubChem Identity Distinction

The supplied PubChem record CID 133082488 is useful for distinguishing closely related forms, but it does not describe the fully amidated product.

PubChem identifies CID 133082488 as N-acetyl Selank with:

• Sequence: Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-OH
• Formula: C35H59N11O10
• Molecular Weight: approximately 793.9 g/mol

The fully amidated product described here is instead:

Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH₂

with formula:

C35H60N12O9

and molecular weight approximately:

792.94 g/mol.

Because PubChem does not currently provide a clearly matched individual record for the fully N-acetylated, C-terminally amidated analogue, Protide Health should avoid assigning CID 133082488 to this exact product.

Selank Peptide Research Context

The scientific literature on Selank peptide primarily concerns the parent heptapeptide rather than the N-acetyl amidate analogue.

Parent Selank was developed from the endogenous immunomodulatory tetrapeptide tuftsin and has been investigated in animal, molecular, gene-expression, and limited human research.

Published work has examined:

• GABAergic signaling
• Neurotrophin-related pathways
• BDNF-associated responses
• Gene expression
• Cytokine and chemokine pathways
• Enkephalin metabolism
• Learning and memory models
• Stress-response systems

Researchers can review broader Selank peptide research indexed by PubMed for literature on the parent compound.

Findings from standard Selank should not automatically be transferred to Ac-Selank-NH₂.

Tuftsin-Derived Peptide Research

Selank was developed from the tuftsin sequence:

Thr-Lys-Pro-Arg

with the addition of:

Pro-Gly-Pro

to create the heptapeptide:

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

Research on the parent peptide has examined neurochemical and immunological pathways associated with this structural relationship.

Experimental literature has evaluated changes involving:

• Cytokine gene expression
• Chemokine signaling
• Neurotransmitter systems
• Stress-associated molecular responses
• Behavioral models

A mouse gene-expression study reported changes in genes encoding cytokines, chemokines, and their receptors after exposure to Selank and related fragments.

Selank and BDNF Research

Brain-derived neurotrophic factor, or BDNF, has been examined in parent Selank research.

A 2019 rat study evaluated Selank in a chronic ethanol-exposure model and measured BDNF content in the hippocampus and frontal cortex.

The study reported changes in BDNF-related experimental endpoints alongside object-recognition measurements.

This provides a preclinical neurotrophin research context.

It does not establish equivalent effects for N-Acetyl Selank Amidate, nor does it demonstrate cognitive or neurological benefit in humans.

Selank Gene-Expression Research

Parent Selank has also been studied using gene-expression approaches.

Published experimental research has investigated genes involved in:

• Cytokine signaling
• Chemokine signaling
• Immune responses
• Neurotransmitter-related pathways
• Stress-response regulation

These findings have led to hypotheses that Selank may influence multiple regulatory networks rather than acting through a single isolated molecular target.

However, the fully modified Selank N-Acetyl Amidate analogue requires direct experimental characterization before similar mechanisms can be attributed to it.

Selank Peptide Benefits: Evidence Limitations

The phrase selank peptide benefits is commonly used in consumer searches.

The scientific literature does not justify presenting the Protide Health N-Acetyl Amidate research vial as providing established human benefits.

Parent Selank studies have explored:

• Behavioral stress models
• Memory-related endpoints
• Neurotrophin signaling
• Gene expression
• Cytokine pathways
• Experimental anxiety-related models

For example, published rodent studies have examined behavioral and neurochemical changes associated with parent Selank.

These findings do not establish therapeutic, cognitive, mood, anxiolytic, or neurological benefits for the modified Ac-Selank-NH₂ research compound.

Selank Nasal Spray Research Context

The keyword selank nasal spray commonly refers to formulations promoted or investigated for intranasal delivery.

The Protide Health product described here is not supplied as a nasal spray.

It is:

• Lyophilized research material
• Supplied in a 3mL vial
• Intended strictly for laboratory experimentation

No nasal formulation, device, concentration, preparation method, or administration instructions are provided.

Research involving standard Selank delivered by a specific route should not automatically be applied to an independently supplied N-acetyl amidate analogue.

Selank Dosage Searches

The phrase selank dosage generally concerns human administration.

Protide Health does not provide human dosing instructions for this research product.

The 10mg value identifies the total amount of research material supplied in the vial.

It is not a recommended dose.

No guidance is provided for:

• Human dosing
• Injection
• Intranasal administration
• Frequency
• Treatment cycles
• Body-weight calculations
• Reconstitution for administration

Laboratory researchers should establish experimental concentrations according to validated assay design and institutional requirements.

Semax and Selank Research Comparison

The phrase semax and selank refers to two different research peptides.

Selank is based on the tuftsin-derived sequence:

TKPRPGP

Semax is based on an ACTH-derived peptide sequence and has a different molecular structure.

Both have been investigated in neuropeptide research, but they should not be treated as interchangeable.

Differences include:

• Amino-acid sequence
• Parent biological peptide
• Molecular targets
• Gene-expression profiles
• Experimental literature
• Terminal modifications

Researchers comparing semax and selank should use compound-specific controls.

Semax Selank Combination Research

The search term semax selank may also imply simultaneous use or combination.

The existence of research literature on each peptide separately does not establish that combining them produces synergistic activity.

The Protide Health Selank N-Acetyl Amidate product contains Selank analogue only and does not contain Semax.

Any combined experimental hypothesis would require direct testing.

N-Acetyl Selank vs Standard Selank

Standard Selank and N-Acetyl Selank Amidate are chemically distinct.

Standard Selank

• Sequence: H-TKPRPGP-OH
• Tuftsin-derived heptapeptide
• Most published Selank literature relates to this general parent form

N-Acetyl Selank Amidate

• Sequence: Ac-TKPRPGP-NH₂
• N-terminal acetyl modification
• C-terminal amidation
• Formula: C35H60N12O9
• Molecular Weight: ~792.94 g/mol

These modifications mean parent Selank findings should be treated as background research rather than direct evidence for the fully capped analogue.

Research Format & Storage

Protide Health supplies Selank N-Acetyl Amidate as:

• Quantity: 10mg
• Form: Lyophilized powder
• Vial Size: 3mL
• Appearance: White to off-white
• Purity: 99%
• Testing: HPLC-MS verified; third-party tested

The supplied storage specification is:

• Store at ≤6°C
• Keep sealed
• Protect from heat
• Protect from direct light
• Protect from moisture

The material is specified as soluble in water.

These statements describe laboratory handling characteristics rather than human preparation instructions.

Research Limitations

Several limitations are especially important for this product.

• Most published Selank research concerns the parent heptapeptide.
• N-acetylation changes the molecular identity.
• C-terminal amidation further changes the molecular identity.
• PubChem CID 133082488 corresponds to the N-acetyl free-acid form, not Ac-Selank-NH₂.
• Direct peer-reviewed biological evidence for the fully N-acetylated, amidated analogue is limited.
• Parent Selank findings cannot automatically be attributed to Ac-Selank-NH₂.
• Rodent behavioral results cannot establish equivalent human outcomes.
• Gene-expression changes do not establish clinical efficacy.
• Neurotrophin-associated effects do not establish cognitive or psychiatric treatment effects.
• Human safety and efficacy have not been established for this Protide Health research preparation.

For these reasons, Selank N-Acetyl Amidate should be discussed as a research analogue rather than as a therapeutic product.

Literature & Citation Index

Changes in Expression of the Genes for Chemokines, Cytokines, and Their Receptors in Response to Selank and Its Fragments

Year: 2011
PMID: 21786679
Research Context: Parent Selank, cytokine and chemokine gene expression, receptor-associated genes, and mouse experimental models.

Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating BDNF Content in the Hippocampus and Prefrontal Cortex in Rats

Year: 2019
PMID: 31625062
DOI: 10.1007/s10517-019-04588-9
Research Context: Parent Selank, BDNF, hippocampus, frontal cortex, object-recognition testing, and chronic ethanol-exposure rat models.

Effects of Heptapeptide Selank on Genetically Based and Situation-Provoked Behavioral Models

Year: 2008
PMID: 18661785
Research Context: Parent Selank, tuftsin-derived peptide biology, behavioral experiments, and rodent models.

Important: These studies concern parent Selank and should not be treated as direct biological evidence for N-Acetyl Selank Amidate.

Related Protide Health Research Products

Researchers comparing short regulatory peptides may review Vesugen 20mg for a chemically distinct peptide research system.

The VIP 10mg research peptide provides a separate neuropeptide and receptor-signaling model.

Researchers may also examine SNAP-8 10mg for a structurally distinct synthetic peptide used in other laboratory research contexts.

These compounds differ from Selank in sequence, molecular structure, and experimental application.

Frequently Asked Questions

What is Selank N-Acetyl Amidate?

Selank N-Acetyl Amidate is a modified version of the tuftsin-derived Selank heptapeptide containing both N-terminal acetylation and C-terminal amidation.

What is the sequence?

The sequence is:

Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH₂

or:

Ac-TKPRPGP-NH₂

Is Selank N-Acetyl Amidate the same as standard Selank?

No. Standard Selank normally has free N- and C-termini, whereas this analogue is capped at both ends.

What is the molecular formula?

The chemically consistent formula for Ac-TKPRPGP-NH₂ is:

C35H60N12O9

with molecular weight approximately 792.94 g/mol.

Is PubChem CID 133082488 correct for Selank N-Acetyl Amidate?

No. CID 133082488 corresponds to N-acetyl Selank with a free C-terminal carboxyl group, Ac-TKPRPGP-OH, not the fully amidated analogue.

What does Selank peptide research investigate?

Parent Selank research has examined neurotrophin signaling, BDNF, gene expression, cytokines, chemokines, memory-related animal models, and behavioral stress pathways.

What are the Selank peptide benefits?

Published work reports experimental effects in preclinical models, but those results do not establish human benefits for this N-acetyl amidate research product.

Is this Selank nasal spray?

No. This is lyophilized laboratory research material and is not supplied as a selank nasal spray.

What is the Selank dosage?

Protide Health does not provide a human selank dosage. The 10mg figure identifies vial contents only and is not an administration recommendation.

Are Semax and Selank the same?

No. Semax and Selank are structurally distinct peptides derived from different parent peptide systems.

What purity does Protide Health specify?

The product specification states 99% purity, with HPLC-MS verification and third-party testing.

Is this product intended for human use?

No. It is supplied solely for biochemical, cellular, molecular, analytical, in-vitro, and qualified preclinical research.

Laboratory Terms & Compliance

Laboratory Research Use Only

This Selank N-Acetyl Amidate product is supplied exclusively for laboratory research, analytical testing, in-vitro studies, molecular research, cellular studies, and qualified preclinical experimentation.

It is not intended for human or veterinary consumption, medical use, diagnostic use, psychiatric treatment, cognitive enhancement, therapeutic use, nasal administration, injection, or clinical administration.

No human dosage, nasal-spray preparation, injection protocol, administration frequency, cycle, treatment recommendation, or human-use preparation instructions are provided.

The purchaser is responsible for appropriate laboratory handling, storage, and use under applicable institutional, federal, state, and local requirements.

For research use only.