When sourcing semax as a research material, confirm identity and purity from a batch-specific COA reporting HPLC purity and a mass-spectrometry match to CAS 80714-61-0 / C37H51N9O10S (~813.9 g/mol), and check whether the listing is the free peptide or the N-acetyl amidated form.
What should a semax COA show?
A useful COA names the batch, the analytical method, a numeric HPLC purity figure, and a mass-spec identity result. For semax the measured mass should match the C37H51N9O10S formula; for the modified form it should match C39H54N10O10S. The general approach to reading these documents is in the purity, HPLC and COA guide.
Free peptide or modified form?
The single most important sourcing check for semax is which molecule the listing actually describes. The N-acetyl semax amidate page and the structure and identity reference give the two sets of identifiers; match the COA mass to the right one so the form is unambiguous.
What physical form does it ship in?
Research-grade semax is supplied as a white lyophilized powder, stored cold and kept sealed and dry until reconstitution in an aqueous-compatible reconstitution solution.
Where to source semax
Happy Peptides supplies semax as an in vitro research material with batch documentation; confirm the COA identity values above on receipt.
Related research guides
- Semax Peptide: Structure, Naming and Identity
- N-Acetyl Semax Amidate: Modified-Form Chemistry and Identity
- Bacteriostatic Water: What It Is and When to Use It in the Lab
- Semax: A Short Peptide and Its In-Vitro Research Targets
Research-use note
All materials discussed are supplied for in vitro laboratory research use only, and are not for human or animal use.














