Nootropics · Peptides

Semax: molecular data, studies & sources

Semax 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 2026-09-21 · Selected bibliography, not a systematic review

Molecular formula, weight & structure

Molecular formula (MF): C37H51N9O10S
Molecular weight (MW): 813.9 g/mol
PubChem compound ID: 9811102
Record title: ACTH (4-7), Pro-Gly-Pro-

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 9811102 · retrieved 2026-09-21

PubChem 2D molecular structure for Semax, CID 9811102 — 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)-2-[[(2S)-2-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]-4-carboxybutanoyl]amino]-3-(1H-imidazol-5-yl)propanoyl]amino]-3-phenylpropanoyl]pyrrolidine-2-carbonyl]amino]acetyl]pyrrolidine-2-carboxylic acid
InChIKey: AFEHBIGDWIGTEH-AQRCPPRCSA-N
SMILES: CSCC[C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC1=CN=CN1)C(=O)N[C@@H](CC2=CC=CC=C2)C(=O)N3CCC[C@H]3C(=O)NCC(=O)N4CCC[C@H]4C(=O)O)N

Machine-readable PubChem source

Human and clinical studies

Selected human-study records are shown with their indexed or reviewed study type. Check the original article for the intervention, formulation and controls; the molecule can also be a comparator or measured variable.

Human study · PubMed trial index
[The efficacy of semax in the tretament of patients at different stages of ischemic stroke].
Gusev EI, Martynov MY, Kostenko EV et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2018
PMID 29798983 · DOI: 10.17116/jnevro20181183261-68
Human study · PubMed trial index
[Effectiveness of semax in acute period of hemispheric ischemic stroke (a clinical and electrophysiological study)].
Gusev EI, Skvortsova VI, Miasoedov NF et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 1997
PMID 11517472
Human study · PubMed trial index
[Evaluation of therapeutic effect of new Russian drug semax in optic nerve disease].
Polunin GS, Nurieva SM, Baiandin DL et al. · Vestnik oftalmologii · 2000
PMID 10741256
Human study · PubMed trial index
[The study of chronic partial denervation and quality of life in patients with motor neuron disease treated with semax].
Serdiuk AV, Levitskiĭ GN, Miasoedov NF et al. · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2007
PMID 18379501

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.

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

Semax 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.

Compare all Semax sizes, forms and supplier prices →

Supplier	Recorded packages	Example source listing
Blank PeptidesUSD	10mg Vial1 recorded offers	10mg Vial · $50.00Checked Sep 21, 2026Supplier listing
American PeptidesUSD	10mg Vial1 recorded offers	10mg Vial · $65.00Checked Sep 21, 2026Supplier listing
Modified AminosUSD	5mg Vial1 recorded offers	5mg Vial · $35.99Checked Sep 16, 2026Supplier listing
Amino ClubUSD	10mg Vial · 25mg Spray2 recorded offers	10mg Vial · $29.95Checked Sep 16, 2026Supplier listing
Nova Peptide SupplyUSD	10mg Vial1 recorded offers	10mg Vial · $34.99Checked Sep 16, 2026Supplier listing
Amino USAUSD	30mg Vial1 recorded offers	30mg Vial · $67.50Checked Sep 16, 2026Supplier listing
Cenexa LabsUSD	10mg Vial · 5mg Vial · 10mg Spray3 recorded offers	10mg Vial · $43.99Checked Sep 16, 2026Supplier listing
US Peptide LabsUSD	10mg Vial · 10mg Spray2 recorded offers	10mg Vial · $70.00Checked Sep 16, 2026Supplier listing
Direct PeptidesUSD	10mg Vial1 recorded offers	10mg Vial · $39.00Checked Sep 16, 2026Supplier listing
Particle PeptidesEUR	10mg Vial1 recorded offers	10mg Vial · €39.99Checked Sep 16, 2026Supplier listing
Nuvion PeptidesCAD	10mg Vial1 recorded offers	10mg Vial · CA$54.99Checked Sep 21, 2026Supplier listing
AminoVaultUSD	10mg Vial1 recorded offers	10mg Vial · $74.00Checked Sep 19, 2026Supplier listing
PhaseOneAUD	10mg Vial1 recorded offers	10mg Vial · A$59.99Checked Sep 21, 2026Supplier listing
BioStacksCAD	10mg Vial1 recorded offers	10mg Vial · CA$90.00Checked Sep 21, 2026Supplier listing
PepspanEUR	10mg Vial1 recorded offers	10mg Vial · €49.90Checked Sep 21, 2026Supplier listing
AllMyPeptidesGBP	5mg Vial · 10mg Vial2 recorded offers	5mg Vial · £12.99Recorded out of stock · Checked Sep 17, 2026Supplier listing

Reference sources & further reading

PubChem compound record 9811102 — chemical identity and structure.
Wikipedia: Semax — Background encyclopedia; not a primary clinical source.
Grokipedia: Semax — Background encyclopedia; not a primary clinical source.

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.