Sable · Question
What is the difference between Vesugen and P21?
Vesugen is a synthetic tripeptide from the Khavinson short-peptide series studied in vascular endothelial cell research (peptide, MW about 390.39 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Vesugen and P21?
Vesugen is a synthetic tripeptide from the Khavinson short-peptide series studied in vascular endothelial cell research (peptide, MW about 390.39 g/mol).
Which is heavier, Vesugen or P21?
Vesugen has a molecular weight of about 390.39 g/mol and P21 about 578.7 g/mol (PubChem), so P21 is heavier by 188.3 g/mol, a ratio of 1.48. This means 1 mg of Vesugen contains 2,561.5 nmol versus 1,728 nmol for P21.
How many mg of P21 are equimolar to 1 mg of Vesugen?
1 mg of Vesugen (MW 390.39) is 2,561.5 nmol. The same number of moles of P21 (MW 578.7) weighs 1.482 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Vesugen and P21
PubChem lists Vesugen as C15H26N4O8 (390.39 g/mol) and P21 as C27H42N6O8 (578.7 g/mol). Vesugen is a peptide; P21 is a peptidomimetic. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of P21 equals how many mg of Vesugen in moles?
10 mg of P21 (MW 578.7) is 17.28 µmol. The same amount of Vesugen (MW 390.39) would weigh 6.746 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of P21 equals how many mg of Vesugen in moles?
5 mg of P21 (MW 578.7) is 8.64 µmol. The same amount of Vesugen (MW 390.39) would weigh 3.373 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 P21 in moles?
20 mg of Vesugen (MW 390.39) is 51.231 µmol. The same amount of P21 (MW 578.7) would weigh 29.647 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 P21 in moles?
10 mg of Vesugen (MW 390.39) is 25.615 µmol. The same amount of P21 (MW 578.7) would weigh 14.824 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 Vesugen and P21?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/p21-vs-vesugen/#sqa-041219
APA
Sable Peptides. (2026, October 11). *What is the difference between Vesugen and P21?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/p21-vs-vesugen/#sqa-041219
BibTeX
@misc{sable_#sqa-041219_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Vesugen and P21?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/p21-vs-vesugen/#sqa-041219}},
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