
Semax
ACTH 4–7 Pro-Gly-Pro
A heptapeptide derived from ACTH(4–7) with a C-terminal Pro-Gly-Pro extension.
Also asMist · $79
Quantity
Buy one, get one free · add a second one and it’s free · no code needed
For laboratory research use only. Not for human or veterinary use.
Ships next business day
Free US shipping over $150 · tracked, discreet, COA in the box
Lot OSL-semax5-01 · tested 2/11/2026 · Freedom Diagnostics
Full test panel
- EndotoxinUSP <85>Pass Pass
Results are copied from the laboratory’s signed report (ref Olym2602090266). Panels vary by laboratory.
All certificates in the COA libraryAbout Semax
Semax is an ACTH(4–7) fragment whose Pro-Gly-Pro tail stabilises it against enzymatic degradation. It is used as a reference heptapeptide in neuronal-culture assays.
Supplied for in-vitro laboratory research. Not for human or veterinary use.
Specifications
- Also known as
- ACTH 4–7 Pro-Gly-Pro
- Type
- Peptide
- CAS number
- 80714-61-0
- Molecular formula
- C37H51N9O10S
- Molecular weight
- 813.9 g/mol
- Residues
- 7 amino acids
- Net content
- 5 mg
- Format
- Lyophilised powder, 3 mL glass vial
- Purity
- ≥99% by HPLC-UV (see COA)
- Testing
- HPLC-UV purity and LC-MS identity, every lot
- Documentation
- Lot-matched certificate of analysis
- Current lot
- OSL-semax5-01
Storage & handling
- Lyophilised
- −20 °C long term (2–8 °C short term), protect from light and moisture
- Reconstituted
- 2–8 °C, use within 30 days
Ships at ambient temperature, sealed. Handle with appropriate PPE in a controlled laboratory environment.
Shipping & questions
How is purity verified?+
Every lot is sent to an independent third-party laboratory before it is listed. Certificates report HPLC-UV purity, LC-MS identity and net content, and some lots carry extended panels such as heavy metals, endotoxin or sterility. The certificate names the laboratory and report number; your lot’s certificate is linked from its product page and filed in the COA library.
What are these compounds sold for?+
Our compounds are supplied exclusively for in-vitro laboratory, analytical and educational research. They are not approved for human or veterinary use, diagnosis or treatment, and by ordering you confirm you are a qualified researcher.
How does “buy more, save more” work?+
Every research vial in your cart counts toward one total, whatever the compounds or strengths. Two or more vials take 5% off every vial, three or more take 10%, and ten or more take 15% — applied automatically, no code. A discount code can go on top; together they take up to 35% off vials. Mists, topicals and supplies aren’t counted. While buy one, get one free runs, two of the same product (any strengths, mists and topicals too) cost the price of the dearer one, three cost two, and so on, with no code. Your cart gets the deal or the volume discount, whichever takes more off.
When will my order leave?+
Order by 4 PM ET and it leaves our US facility that business day; anything later goes out within 24 hours. Tracking is emailed at dispatch. US shipping is free over $150 and $9.95 otherwise.
How should peptides be stored?+
For long-term storage, freeze lyophilised vials at −20 °C (2–8 °C is fine for short periods) and keep them away from light and moisture. After reconstitution, keep it refrigerated (2–8 °C) and finish it within 30 days.
For research use only. Not for human or veterinary use, not for diagnostic or therapeutic procedures, and not evaluated by the FDA.
Frequently ordered with Semax
All single vials
1,000+ sold this month
Second one free · no code


