Semax
Semax at a glance
Peptide.Express Semax 10mg (CAS 80714-61-0) is $50, ≥99% HPLC as the sourcing specification — not a measurement of any one vial — with a molecular weight of 813.9 Da and molecular formula C37H51N9O10S; measured purity and mass are only on that lot’s Certificate of Analysis you can verify before purchase. Same-day dispatch on business days (orders before 2 PM EST), free over $150. For in-vitro laboratory research use only.

10mg presentation shown.
Packaging reference.
Research-Grade Compound
Semax is a synthetic heptapeptide with the sequence Met-Glu-His-Phe-Pro-Gly-Pro, formed by extending the ACTH(4-7) fragment of adrenocorticotropic hormone with a C-terminal Pro-Gly-Pro tripeptide. Its molecular formula is C37H51N9O10S, its molecular weight is approximately 813.9 Da, and its CAS number is 80714-61-0. It is supplied here solely as a research chemical for in-vitro and preclinical laboratory work.
For laboratory research use only. Not for human or veterinary use.
Purity standard: Semax is sourced to ≥99% by HPLC — sourcing spec.
For laboratory research use only. Not for human or veterinary use.
Batch documentation
Certificate of Analysis
Your batch. Independently tested.
Measured results, batch identifiers, and the original laboratory report for your selected presentation.
The batch behind your vial.
Packaging illustration- COA ACCESSION
- 09844
- Selected presentation
- 10mg
- Laboratory
- Mistral Diagnostics
Batch details
- Sourcing specification
- ≥99% by HPLC
- Accession / CoA
- 09844
- Laboratory
- Mistral Diagnostics
Issued by an independent third-party laboratory; Peptide.Express does not test in-house. Results are reproduced as-is and confirm compound identity, purity, and the analytical methods used.
How to match your vial to this report

- 1.Match the presentationSemax · 10mg selected.
- 2.Open the original CoAAccession 09844. Review the original methods and results.
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Research Compounds Related to Semax
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Semax price per mg
| Size | 1-vial price | Pack prices | $/mg | Lot # | Measured HPLC % | CoA |
|---|---|---|---|---|---|---|
| 10mg | $50.00 | — | $5.00 | Pending CoA | Pending CoA | Pending CoA |
$/mg is the single-vial price divided by the labeled mg per vial. Lot and measured HPLC are listed only when that size's own Certificate of Analysis is on file. All certificates are in the lab results index. For laboratory research use only.
Compound specifications
- Compound
- Semax
- CAS
- 80714-61-0
- Molecular formula
- C37H51N9O10S
- Molecular weight
- ~813.9 Da
- Purity
- ≥99% by HPLC
- Form
- White to off-white lyophilized powder
- Sequence
View published sequence
Met-Glu-His-Phe-Pro-Gly-Pro
Research context
Semax (CAS 80714-61-0) is studied in in-vitro and animal models via Synthetic ACTH(4-10) Analogue Heptapeptide. This section covers the composition and analytical specification data. Analytical standard: ≥99% by HPLC. Stocked material is for laboratory research use only. Identity, structure, and handling values come from the existing profile.
Related research guide: what is DSIP? →Reconstituting Semax: step-by-step peptide reconstitution guide. Concentration maths: peptide reconstitution calculator.
Research reference
Semax research reference
The research library
A closer look at the science.
Explore Semax's identity, receptor activity, and published research.
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Before you order
Buying Semax — Frequently Asked Questions
What purity documentation ships with Semax?
Semax is sourced to a >=99% by HPLC standard, and each batch has a Certificate of Analysis with the HPLC chromatogram and mass spectrometry identity confirmation. The >=99% figure is a sourcing specification; the batch-specific measured value is the number printed on that batch CoA.
How should Semax be stored?
Keep the lyophilized powder at -20C, sealed and protected from light. Once reconstituted, hold the solution at 2-8C away from light and aliquot into single-use volumes if the work will run for weeks, so no aliquot goes through repeated freeze-thaw. A published solution stability window for this peptide is not publicly disclosed, so treat your own stability data as the reference.
Can Semax be used in human or veterinary applications?
No. This material is sold exclusively for in-vitro and preclinical laboratory research by qualified personnel. It is not a drug, supplement or food, and it is not for human or animal consumption in any form.
Is Semax FDA approved?
No. Semax has no FDA approval for any indication in the United States. It is registered as a medicine in Russia, which is why much of its clinical literature appears in Russian-language journals. Material supplied here is a research chemical.
All products are sold for in vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance.
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Catalog identity reference
Theoretical identity from the catalog or verified registry record — not a laboratory observation from the Certificate of Analysis above.
- CAS Number
- 80714-61-0
- Molecular Formula
- C37H51N9O10S
- Molecular Weight
- 813.9 g/mol
- Sequence
- Met-Glu-His-Phe-Pro-Gly-Pro
What we can show you the numbers for
- 24 Certificates of Analysis published.Verify with the issuing laboratory: BPC-157 · CJC-1295 + Ipamorelin (No DAC) · Epithalon · GHK-Cu · HCG · HGH · Ipamorelin · Kisspeptin-10 · KLOW Blend · Melanotan II · Mitochondrial Fuel Stack · MOTS-c · NAD+ · PT-141 · Retatrutide · Retatrutide Pen · Semax · Semax Nasal Spray · Sermorelin · SS-31 · TB-500 · Tesamorelin · Tirzepatide · Wolverine Blend.
- Orders after 2 PM EST may be processed the next business day
- Free US shipping on orders over $150


