Sable · Question
What is the difference between Selank and Thymosin alpha-1?
Selank is a synthetic heptapeptide analogue of tuftsin extended with Pro-Gly-Pro, developed at the Institute of Molecular Genetics in Russia and studied in neuropeptide research (peptide, MW about 751.9 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Selank and Thymosin alpha-1?
Selank is a synthetic heptapeptide analogue of tuftsin extended with Pro-Gly-Pro, developed at the Institute of Molecular Genetics in Russia and studied in neuropeptide research (peptide, MW about 751.9 g/mol).
Which is heavier, Selank or Thymosin alpha-1?
Selank has a molecular weight of about 751.9 g/mol and Thymosin alpha-1 about 3108.3 g/mol (PubChem), so Thymosin alpha-1 is heavier by 2,356.4 g/mol, a ratio of 4.13. This means 1 mg of Selank contains 1,330 nmol versus 321.7 nmol for Thymosin alpha-1.
How many mg of Thymosin alpha-1 are equimolar to 1 mg of Selank?
1 mg of Selank (MW 751.9) is 1,330 nmol. The same number of moles of Thymosin alpha-1 (MW 3108.3) weighs 4.134 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Selank and Thymosin alpha-1
PubChem lists Selank as C33H57N11O9 (751.9 g/mol) and Thymosin alpha-1 as C129H215N33O55 (3108.3 g/mol). Selank is a peptide; Thymosin alpha-1 is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Selank equals how many mg of Thymosin alpha-1 in moles?
5 mg of Selank (MW 751.9) is 6.65 µmol. The same amount of Thymosin alpha-1 (MW 3108.3) would weigh 20.67 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Selank equals how many mg of Thymosin alpha-1 in moles?
10 mg of Selank (MW 751.9) is 13.3 µmol. The same amount of Thymosin alpha-1 (MW 3108.3) would weigh 41.339 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Thymosin alpha-1 equals how many mg of Selank in moles?
5 mg of Thymosin alpha-1 (MW 3108.3) is 1.609 µmol. The same amount of Selank (MW 751.9) would weigh 1.21 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Thymosin alpha-1 equals how many mg of Selank in moles?
10 mg of Thymosin alpha-1 (MW 3108.3) is 3.217 µmol. The same amount of Selank (MW 751.9) would weigh 2.419 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A CoA for every lot; each vial carries a printed lot number that matches it. Ask with the lot number and we send it.
Cite this
Research use only. Not for consumption. No health claims.
Plain
Sable Peptides. (2026). What is the difference between Selank and Thymosin alpha-1?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/selank-vs-thymosin-alpha-1/#sqa-040689
APA
Sable Peptides. (2026, October 11). *What is the difference between Selank and Thymosin alpha-1?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/selank-vs-thymosin-alpha-1/#sqa-040689
BibTeX
@misc{sable_#sqa-040689_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Selank and Thymosin alpha-1?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/selank-vs-thymosin-alpha-1/#sqa-040689}},
note = {Accessed 11 October 2026. CC BY 4.0}
}Badge
<a href="https://www.sablepeptides.co.uk/ref"><img src="https://www.sablepeptides.co.uk/badge/ref.svg" alt="Data: UK Research Peptide Reference — Sable Peptides" width="220" height="40"></a>
Date modified: 2026-10-10