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Semax

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Semax is a research material associated with neuropeptide research. Intended for laboratory research and analytical use only; not for human or veterinary use.

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Molecular Structure Explorer

Semax

Structure of the compound on this page.

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Molecular structure of Semax

Data from PubChem (NCBI) or a reviewed manual entry, shown only after review. 3D models are computed conformers, not experimental structures. Browsing does not change the product, option or cart. For laboratory research use only.

Product Details

Semax – Research Grade

Semax from Cleared Peptides is a research-grade compound supplied for laboratory and analytical investigation. Every lot is third-party tested, and the batch Certificate of Analysis is published before sale. Specifications, CAS number and molecular formula are listed below.

Research use only. Semax is supplied for laboratory research. It is not a drug, food, cosmetic, or dietary supplement. It is not FDA-approved. It is not for human or veterinary administration. This page does not give a dose or a method of administration. A study cited on this page describes that study’s own test article. It does not make this lot an approved medicine. To check a fact, open the PubMed or DOI link, confirm the authors and year, and match the paper’s compound name, CAS number, or sequence to the specification table. The full method is on the research desk page. Identity and purity for a lot are only what that lot’s certificate of analysis reports. An HPLC percentage is not a sterility result and not an endotoxin result unless the certificate prints those tests.

Semax Specifications

CompoundSemax
SynonymsACTH (4-7) Pro-Gly-Pro
CAS Number80714-61-0
PubChem CID9811102
Molecular FormulaC37H51N9O10S
Molecular Weight813.9 g/mol
Sequence / StructureMet-Glu-His-Phe-Pro-Gly-Pro
FormLyophilized (freeze-dried) powder
Purity≥99% by HPLC (verified per batch – see COA)
StorageStore at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening.

Semax in Published Research

Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro) consisting of the ACTH(4–7) fragment extended with a C-terminal Pro-Gly-Pro tripeptide that increases resistance to peptidases.

It is studied in neuropeptide research, including BDNF and neurotrophin gene-expression studies in cell and tissue models. It is often compared with Selank.

This summary describes published laboratory research only and makes no claim about effects in humans or animals.

Purity Testing & Certificate of Analysis

Each lot of Semax is analyzed by an independent laboratory, with identity and purity (or composition, for multi-component preparations) reported on a lot-specific Certificate of Analysis. View current results on our COA page.

Storage & Laboratory Handling

Store at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening. Minimize freeze–thaw cycles and handle according to your institution’s chemical-hygiene procedures.

Frequently Asked Questions

Is Semax third-party tested?

Yes. Every lot of Semax is tested by an independent laboratory for identity and purity, and the batch Certificate of Analysis is published on our COA page.

Can I see the Semax Certificate of Analysis before ordering?

Yes. Lot-specific COAs are posted on our COA page so you can review analytical data before purchase.

What does Research Use Only (RUO) mean?

RUO products are supplied solely for laboratory and analytical research. They are not medicines, are not for human or veterinary use, and no dosing or administration information is provided.

How should Semax be stored?

Store at −20 °C, sealed, dry and protected from light. Allow vial to reach room temperature before opening.

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Selected References

Peer-reviewed literature on Semax, listed as scientific background for laboratory researchers. Citation does not imply endorsement by the authors or any use other than in-vitro research.

  1. Tarasov VV, et al. Pharmacological Aspects of Neuro-Immune Interactions. Curr Pharm Des. 2018;24(1):15-21. PubMed 28875850 · DOI
  2. Magrì A, et al. Influence of the N-terminus acetylation of Semax, a synthetic analog of ACTH(4-10), on copper(II) and zinc(II) coordination and biological properties. J Inorg Biochem. 2016;164:59-69. PubMed 27586814 · DOI

Related Research Compounds

Research Use Only

For laboratory research use only. This product is not a drug, food, cosmetic or dietary supplement, is not FDA-approved, and is not intended for human or veterinary use or for the diagnosis, treatment, cure, mitigation or prevention of any disease. No dosing, administration or therapeutic information is provided. Sold only to qualified researchers; the purchaser is responsible for safe handling and compliance with all applicable laws and institutional requirements.

Certificate of Analysis (COA)

Choose a report to see its lab results, purity and measured amount. Match the MG amount and lot number to your product.

Semax

Certificate of Analysis — 10 MGLot # WL-SX10-P00519June 12, 2026 PASSLatestView details

BTLabs

Semax · WL-SX10-P00519

PASS
99.8%Purity by HPLC
Lot number
WL-SX10-P00519
Tested
June 12, 2026
Labeled amount
10 MG
Measured amount
9.8 MG

Read the full certificate for test methods, specifications and results.

Certificate preview
View the certificate

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