Sable · Question
What is the difference between PT-141 and Vesugen?
PT-141 is a cyclic heptapeptide melanocortin receptor agonist, a metabolite-like analogue of Melanotan II with a C-terminal acid, used in melanocortin receptor research (cyclic peptide, MW about 1025.2 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between PT-141 and Vesugen?
PT-141 is a cyclic heptapeptide melanocortin receptor agonist, a metabolite-like analogue of Melanotan II with a C-terminal acid, used in melanocortin receptor research (cyclic peptide, MW about 1025.2 g/mol).
Which is heavier, PT-141 or Vesugen?
PT-141 has a molecular weight of about 1025.2 g/mol and Vesugen about 390.39 g/mol (PubChem), so PT-141 is heavier by 634.8 g/mol, a ratio of 2.63. This means 1 mg of PT-141 contains 975.4 nmol versus 2,561.5 nmol for Vesugen.
How many mg of Vesugen are equimolar to 1 mg of PT-141?
1 mg of PT-141 (MW 1025.2) is 975.4 nmol. The same number of moles of Vesugen (MW 390.39) weighs 0.3808 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of PT-141 and Vesugen
PubChem lists PT-141 as C50H68N14O10 (1025.2 g/mol) and Vesugen as C15H26N4O8 (390.39 g/mol). PT-141 is a cyclic peptide; Vesugen is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of PT-141 equals how many mg of Vesugen in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of Vesugen (MW 390.39) would weigh 3.808 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of PT-141 equals how many mg of Vesugen in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of Vesugen (MW 390.39) would weigh 1.904 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of Vesugen equals how many mg of PT-141 in moles?
20 mg of Vesugen (MW 390.39) is 51.231 µmol. The same amount of PT-141 (MW 1025.2) would weigh 52.522 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Vesugen equals how many mg of PT-141 in moles?
10 mg of Vesugen (MW 390.39) is 25.615 µmol. The same amount of PT-141 (MW 1025.2) would weigh 26.261 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 PT-141 and Vesugen?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-vesugen/#sqa-040484
APA
Sable Peptides. (2026, October 11). *What is the difference between PT-141 and Vesugen?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-vesugen/#sqa-040484
BibTeX
@misc{sable_#sqa-040484_2026,
author = {{Sable Peptides}},
title = {{What is the difference between PT-141 and Vesugen?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-vesugen/#sqa-040484}},
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