Compound reference
Semax
Short synthetic peptide · Updated
A short synthetic peptide derived from a fragment of adrenocorticotropic hormone.
Identity
- Sequence
- Pending
- Molecular formula
- Pending
- Molecular weight
- Pending
- CAS number
- Pending
Marked pending rather than filled in from a secondary source. These figures will be published when they come from our own analysis, so that this page and the certificates agree.
Published research areas
Fields in which this compound appears in the published literature. These describe where the research sits, not what it concluded.
- Neurological research models
- The largest body of published work, much of it originating in Russian-language literature that is less represented in English-language indexes.
- Cognitive research models
- Investigated in laboratory models examining learning and memory tasks in animals.
- Structural work
- Its small size makes it tractable for NMR spectroscopy and conformational studies.
What the analysis should cover
- Identity by mass spectrometry, which for a short peptide gives an unambiguous result.
- Purity by HPLC with the trace published. Short peptides are weakly retained on reverse-phase columns, so method conditions matter more than usual to a purity figure.
- Net peptide content.
- Salt form and residual counterion.
How to read a certificate of analysis covers what each of these measurements establishes.
Handling and stability
- Supplied freeze-dried and sealed.
- Residual moisture governs how long sealed material stays as analyzed.
- Stored cold, dry and dark in the container as supplied.
Why peptides ship freeze-dried sets out the reasoning behind these conditions.
Supplied by us
A short peptide derived from an ACTH fragment, freeze-dried and sealed in an 11mg vial. Used in neurological research models and in structural work including NMR spectroscopy. Every lot ships with its own certificate of analysis.
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