Selank
Selank is a lab-made peptide of seven amino acids, built from a natural four-amino-acid peptide called tuftsin plus a protective tail.
Where it came from
Selank was developed in the 1990s at the Institute of Molecular Genetics of the Russian Academy of Sciences in Moscow.
It is built on tuftsin, a natural peptide of four amino acids that Victor Najjar's group identified around 1970 at Tufts University in Boston, as a short piece of an antibody protein.
Worth knowing
- Selank is tuftsin with three extra building blocks added to the end. The added tail protects it from being broken down quickly by the enzymes that cut peptides.
- Tuftsin is named after Tufts University, where it was found.
- The same three-piece tail appears in Semax, from the same Moscow institute.
At a glance
| Detail | Value |
|---|---|
| Chain length | 7 amino acids |
| Chemical formula | C33H57N11O9 |
| Weight of one molecule | 751.9 g/mol |
| Form | Freeze-dried powder |
| Storage | Sealed in a freezer at -20 °C, away from light |
Weight is shown in grams per mole (g/mol), the standard unit chemists use. It's the number a lab checks a sample against to confirm it's the right compound.
Lab reports
Every batch (called a lot) of Selank is tested by an independent lab. The report shows the lab, the test date, the lot number, how pure the sample is and how much is in the vial. Find them on the Certificates of Analysis page. New to lab reports? Start with How to read a peptide lab report.
The weight above is for the compound on its own. A report may show a slightly higher figure, because the powder also carries a little salt left from manufacturing. Peptide salt forms explains why.
Storage
Keep the vial sealed in a freezer at -20 °C, away from light, and let it warm to room temperature before opening so moisture doesn't get in. More in Storing lyophilized (freeze-dried) peptides in the lab and the Research handling guidelines.
For research use only. Not for human or veterinary use.