Sable · Question
What is the difference between KPV and PT-141?
KPV is the C-terminal tripeptide of alpha-melanocyte-stimulating hormone, studied in inflammation-signalling research in cell and rodent models (peptide, MW about 342.43 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between KPV and PT-141?
KPV is the C-terminal tripeptide of alpha-melanocyte-stimulating hormone, studied in inflammation-signalling research in cell and rodent models (peptide, MW about 342.43 g/mol).
Which is heavier, KPV or PT-141?
KPV has a molecular weight of about 342.43 g/mol and PT-141 about 1025.2 g/mol (PubChem), so PT-141 is heavier by 682.8 g/mol, a ratio of 2.99. This means 1 mg of KPV contains 2,920.3 nmol versus 975.4 nmol for PT-141.
How many mg of PT-141 are equimolar to 1 mg of KPV?
1 mg of KPV (MW 342.43) is 2,920.3 nmol. The same number of moles of PT-141 (MW 1025.2) weighs 2.994 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of KPV and PT-141
PubChem lists KPV as C16H30N4O4 (342.43 g/mol) and PT-141 as C50H68N14O10 (1025.2 g/mol). KPV is a peptide; PT-141 is a cyclic peptide. These formulas refer to the parent compounds without salt counter-ions.
A 2 mg vial of KPV equals how many mg of PT-141 in moles?
2 mg of KPV (MW 342.43) is 5.841 µmol. The same amount of PT-141 (MW 1025.2) would weigh 5.988 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of KPV equals how many mg of PT-141 in moles?
5 mg of KPV (MW 342.43) is 14.602 µmol. The same amount of PT-141 (MW 1025.2) would weigh 14.969 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of KPV equals how many mg of PT-141 in moles?
10 mg of KPV (MW 342.43) is 29.203 µmol. The same amount of PT-141 (MW 1025.2) would weigh 29.939 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of KPV equals how many mg of PT-141 in moles?
20 mg of KPV (MW 342.43) is 58.406 µmol. The same amount of PT-141 (MW 1025.2) would weigh 59.878 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of PT-141 equals how many mg of KPV in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of KPV (MW 342.43) would weigh 3.34 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 KPV in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of KPV (MW 342.43) would weigh 1.67 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 KPV and PT-141?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/kpv-vs-pt-141/#sqa-039656
APA
Sable Peptides. (2026, October 11). *What is the difference between KPV and PT-141?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/kpv-vs-pt-141/#sqa-039656
BibTeX
@misc{sable_#sqa-039656_2026,
author = {{Sable Peptides}},
title = {{What is the difference between KPV and PT-141?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/kpv-vs-pt-141/#sqa-039656}},
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