Research comparison
Semax vs. Selank
Two synthetic heptapeptides with the same C-terminal Pro-Gly-Pro extension but different origins: Semax derives from the ACTH fragment 4–7, Selank from the immune peptide tuftsin. Both are studied in neurobiological models.
| Property | Semax | Selank |
|---|---|---|
| Profile | Synthetic heptapeptide (MEHFPGP) based on the ACTH fragment 4–7 with a C-terminal Pro-Gly-Pro extension, without hormonal ACTH activity. | Synthetic heptapeptide (TKPRPGP), an extended analogue of the immune peptide tuftsin, developed at the Institute of Molecular Genetics in Moscow. |
| Sequence | MEHFPGP | TKPRPGP |
| Length | 7 amino acids | 7 amino acids |
| Formula | C₃₇H₅₁N₉O₁₀S | C₃₃H₅₇N₁₁O₉ |
| Molar mass | 813.9 g/mol | 751.9 g/mol |
| CAS | 80714-61-0 | 129954-34-3 |
| Purity (current batch, HPLC) | 99.12 % | 99.82 % |
| Price per mg from | €2.50 | €2.50 |
In the range
For research and laboratory use only. Not for use in humans or animals. The data summarises literature and lab reports; it is not a recommendation for use.