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Selank: molecular data, studies & sources

Selank is catalogued here as a research compound. This profile brings together the molecular source record, selected indexed publications and available supplier comparisons. Evidence for a named substance does not authenticate a commercial product.

Compiled by PeptideTech Editors · Sources checked · Selected bibliography, not a systematic review

Molecular formula, weight & structure

Molecular formula (MF)
C33H57N11O9
Molecular weight (MW)
751.9 g/mol
PubChem compound ID
11765600
Record title
Selank

Values describe the selected PubChem molecular entity. Counterions, salt forms, hydration and sequence changes can alter the supplied material. Confirm the exact identity against the supplier specification.

Source: PubChem CID 11765600 · retrieved 2026-09-21

2D molecular structure for Selank, PubChem CID 11765600
2D depiction from PubChem. Open to inspect the full image. This drawing represents the selected record, not a vendor batch test.
Chemical identifiers and source data
IUPAC name
(2S)-1-[2-[[(2S)-1-[(2S)-2-[[(2S)-1-[(2S)-6-amino-2-[[(2S,3R)-2-amino-3-hydroxybutanoyl]amino]hexanoyl]pyrrolidine-2-carbonyl]amino]-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]amino]acetyl]pyrrolidine-2-carboxylic acid
InChIKey
JTDTXGMXNXBGBZ-YVHUGQOKSA-N
SMILES
C[C@H]([C@@H](C(=O)N[C@@H](CCCCN)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCCN=C(N)N)C(=O)N2CCC[C@H]2C(=O)NCC(=O)N3CCC[C@H]3C(=O)O)N)O
Machine-readable PubChem source

Identifiers & sequence

PubChem CID
11765600
CAS Registry Number
129954-34-3via ChemIDplus, EPA DSSTox, FDA GSRS
FDA UNII
TS9JR8EP1G
InChIKey
JTDTXGMXNXBGBZ-YVHUGQOKSA-N
Wikidata
Q5810370

Peptide sequence · 7 residues (one-letter code; X marks a residue without a one-letter code)

TKPRPGP

Condensed notation with terminal groups and non-standard residues

H-Thr-Lys-Pro-Arg-Pro-Gly-Pro-OH

Source: PubChem Biologic Line Notation. A reference sequence for the record, not an analysis of a supplied batch.

CAS numbers are published only from ChemIDplus, EPA DSSTox or the FDA Global Substance Registration System; UNII codes are confirmed in FDA GSRS by structure, sequence or exact name. Checked 2026-10-07.

Calculated molecular descriptors
Monoisotopic (exact) mass751.4341 Da
Heavy atoms53
Hydrogen-bond donors9
Hydrogen-bond acceptors11
Rotatable bonds19
Topological polar surface area322.2 Ų
Calculated logP (Crippen)-3.98
Rings3
Stereocenters7
Formal charge0

Computed with RDKit from the published SMILES (Crippen logP, topological polar surface area). Calculated descriptors are not measured properties of a supplied batch.

Registered clinical trials

Studies registered on ClinicalTrials.gov that list Selank as an intervention. Studies that only measure the molecule as a biomarker, or use it only as a comparator or background arm for another drug, are excluded. A registration describes a planned or completed protocol; it does not report a result. Active studies are listed first.

No registered study naming this compound was matched. This is a documented gap in registry coverage, not proof that no study exists.

Registry check 2026-10-01 · Run this search on ClinicalTrials.gov

Human intervention studies

Selected studies in which participants received Selank, with their indexed or reviewed study type. Check the original article for the formulation, population and controls. Studies that only measured the molecule, or used it as a comparator, are listed separately below and are not counted as intervention studies.

  1. Human study · PubMed trial index Compound given to participants

    [Optimization of the treatment of anxiety disorders with selank].

    Medvedev VE, Tereshchenko ON, Kost NV et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2015

    PMID 26356395 · DOI: 10.17116/jnevro20151156133-40

  2. Human study · PubMed trial index Compound given to participants

    [A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders].

    Medvedev VE, Tereshchenko ON, Israelian AIu et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2014

    PMID 25176261

  3. Human study · PubMed trial index Compound given to participants

    [Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia].

    Zozulia AA, Neznamov GG, Siuniakov TS et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2008

    PMID 18454096

Preclinical research, reviews & other publications

Animal studies, laboratory experiments, reviews and other indexed papers answer different questions. A review is secondary evidence; a case report does not estimate how often an outcome occurs.

  1. Research publication · design requires review

    Functional Connectomic Approach to Studying Selank and Semax Effects.

    Panikratova YR, Lebedeva IS, Sokolov OY et al. · Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2020

    PMID 32342318 · DOI: 10.1134/S001249662001007X

  2. Preclinical / laboratory research

    Effect of Selank on Morphological Parameters of Rat Liver in Chronic Foot-Shock Stress.

    Fomenko EV, Bobyntsev II, Ivanov AV et al. · Bulletin of experimental biology and medicine · 2019

    PMID 31243679 · DOI: 10.1007/s10517-019-04512-1

  3. Research publication · design requires review

    GABA, Selank, and Olanzapine Affect the Expression of Genes Involved in GABAergic Neurotransmission in IMR-32 Cells.

    Filatova E, Kasian A, Kolomin T et al. · Frontiers in pharmacology · 2017

    PMID 28293190 · DOI: 10.3389/fphar.2017.00089

Selank supplier sources

Scientific sources describe molecules and experiments. The commercial links below identify recorded supplier packages. A publication or chemical database entry does not verify the seller, purity, sterility or contents of a lot. Some links are affiliate links; see our disclosure.

Selank for sale: compare prices, sizes and forms from every tracked supplier →

SupplierRecorded packagesExample source listing
American PeptidesUSD5mg Spray · 10mg Vial2 recorded offers5mg Spray · $90.00Checked Nov 6, 2026Supplier listing, Selank 5mg Spray, American Peptides, opens in a new tab
Blank PeptidesUSD10mg Vial1 recorded offers10mg Vial · $50.00Stale observation · Checked Sep 30, 2026Supplier listing, Selank 10mg Vial, Blank Peptides, opens in a new tab
Amino ClubUSD10mg Vial · 20mg Spray2 recorded offers10mg Vial · $29.95Stale observation · Checked Oct 14, 2026Supplier listing, Selank 10mg Vial, Amino Club, opens in a new tab
Nova Peptide SupplyUSD10mg Vial1 recorded offers10mg Vial · $44.99Checked Nov 6, 2026Supplier listing, Selank 10mg Vial, Nova Peptide Supply, opens in a new tab
Amino USAUSD10mg Vial · 5mg Vial2 recorded offers10mg Vial · $50.00Checked Nov 6, 2026Supplier listing, Selank 10mg Vial, Amino USA, opens in a new tab
Cenexa LabsUSD10mg Vial · 5mg Vial · 10mg Spray3 recorded offers10mg Vial · $49.99Checked Nov 6, 2026Supplier listing, Selank 10mg Vial, Cenexa Labs, opens in a new tab
LA PeptidesUSD10mg Spray · 10mg Vial2 recorded offers10mg Spray · $59.99Checked Nov 3, 2026Supplier listing, Selank 10mg Spray, LA Peptides, opens in a new tab

Reference sources & further reading

The citations above link directly to publication records. Encyclopedia links are background reading and are not used to establish clinical effectiveness.

Search for additional research

These links run searches; their results have not been individually reviewed and can include unrelated compounds.

Research information is not a dosing guide or a recommendation for personal use. Study findings are specific to the formulation, population and methods tested. Read our source and correction policy.

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