Semax
Semax is a synthetic heptapeptide, sequence MEHFPGP, related to a fragment of ACTH, with the molecular formula C37H51N9O10S and a molecular weight of 813.93 g/mol.
Identity & structure
Verified identifiers, sequence, and analytical properties — every value machine-readable and independently sourceable against PubChem.
Primary sequence · 7 residues.
| Identity | |
|---|---|
| CAS | 80714-61-0 |
| PubChem CID | 9811102 |
| FDA UNII | I5FAL2585H |
| Also known as | Semax peptide, ACTH (4-7), Pro-Gly-Pro- |
| Research class | Signaling & Neuroactive |
| Structure | |
| Molecular formula | C37H51N9O10S |
| InChIKey | AFEHBIGDWIGTEH-AQRCPPRCSA-N |
| Sequence | MEHFPGP |
| Length | 7 residues |
| Analytical | |
| Average molecular weight | 813.93 g/mol |
| Monoisotopic mass | 813.348 Da |
| Form | Lyophilized powder |
| Solubility | Water-soluble |
| Storage | 2–8 °C, desiccated |
Where Semax sits in its class
Molecular weight (g/mol) across the 18 characterized compounds in Signaling & Neuroactive. Compare all compounds →
Research context
Semax is a synthetic heptapeptide, sequence MEHFPGP, related to a fragment of ACTH, with the molecular formula C37H51N9O10S and a molecular weight of 813.93 g/mol. It is studied in neuromodulation research and is supplied as a stable, synthetically accessible reference material.
Supplied solely as a characterized research material. No representation is made as to any biological effect. For Research Use Only — not for human or veterinary use.
How Semax is identified
Identity and purity are measured, not asserted. Electrospray mass spectrometry (ESI-MS) determines the mass-to-charge ratio of the intact molecule — an observed value matching the expected series above confirms the molecular formula. Reversed-phase HPLC separates the sample over time, and purity is read as arithmetic: the target peak’s area as a share of total peak area.
Handling & stability
Physical form, storage, and solubility as supplied. Handling guidance only — no use protocols.
Related compounds
Other compounds in this research class.
Frequently asked questions
What is Semax?
What is the molecular formula of Semax?
What is the CAS number of Semax?
How is the identity of Semax confirmed?
How should Semax be stored?
Is Semax a peptide?
Is Semax approved for human use?
Data, tools & certificates
References
- PubChem — compound identity, structure & computed properties (CID 9811102). PubChem →
- CAS Registry Number 80714-61-0.
- FDA Global Substance Registration System — UNII I5FAL2585H.
Research professionals only
Semax — from the record to the bench
The monograph and every lot certificate stay public. Pricing and ordering open for verified research professionals.