Sable · Question
What is the difference between Semax and Thymosin alpha-1?
Semax is a heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro, studied in neuropeptide and BDNF-expression research in rodent models (peptide, MW about 813.9 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Semax and Thymosin alpha-1?
Semax is a heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro, studied in neuropeptide and BDNF-expression research in rodent models (peptide, MW about 813.9 g/mol).
Which is heavier, Semax or Thymosin alpha-1?
Semax has a molecular weight of about 813.9 g/mol and Thymosin alpha-1 about 3108.3 g/mol (PubChem), so Thymosin alpha-1 is heavier by 2,294.4 g/mol, a ratio of 3.82. This means 1 mg of Semax contains 1,228.7 nmol versus 321.7 nmol for Thymosin alpha-1.
How many mg of Thymosin alpha-1 are equimolar to 1 mg of Semax?
1 mg of Semax (MW 813.9) is 1,228.7 nmol. The same number of moles of Thymosin alpha-1 (MW 3108.3) weighs 3.819 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Semax and Thymosin alpha-1
PubChem lists Semax as C37H51N9O10S (813.9 g/mol) and Thymosin alpha-1 as C129H215N33O55 (3108.3 g/mol). Semax 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 Semax equals how many mg of Thymosin alpha-1 in moles?
5 mg of Semax (MW 813.9) is 6.143 µmol. The same amount of Thymosin alpha-1 (MW 3108.3) would weigh 19.095 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Semax equals how many mg of Thymosin alpha-1 in moles?
10 mg of Semax (MW 813.9) is 12.287 µmol. The same amount of Thymosin alpha-1 (MW 3108.3) would weigh 38.19 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of Semax equals how many mg of Thymosin alpha-1 in moles?
30 mg of Semax (MW 813.9) is 36.86 µmol. The same amount of Thymosin alpha-1 (MW 3108.3) would weigh 114.6 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 Semax in moles?
5 mg of Thymosin alpha-1 (MW 3108.3) is 1.609 µmol. The same amount of Semax (MW 813.9) would weigh 1.309 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 Semax in moles?
10 mg of Thymosin alpha-1 (MW 3108.3) is 3.217 µmol. The same amount of Semax (MW 813.9) would weigh 2.618 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 Semax and Thymosin alpha-1?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/semax-vs-thymosin-alpha-1/#sqa-040819
APA
Sable Peptides. (2026, October 11). *What is the difference between Semax and Thymosin alpha-1?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/semax-vs-thymosin-alpha-1/#sqa-040819
BibTeX
@misc{sable_#sqa-040819_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Semax and Thymosin alpha-1?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/semax-vs-thymosin-alpha-1/#sqa-040819}},
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