Sable · Question
What is the difference between PT-141 and Pal-GHK?
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).
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Last verified 2026-10-10
What is the difference between PT-141 and Pal-GHK?
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 Pal-GHK?
PT-141 has a molecular weight of about 1025.2 g/mol and Pal-GHK about 578.8 g/mol (PubChem), so PT-141 is heavier by 446.4 g/mol, a ratio of 1.77. This means 1 mg of PT-141 contains 975.4 nmol versus 1,727.7 nmol for Pal-GHK.
How many mg of Pal-GHK 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 Pal-GHK (MW 578.8) weighs 0.5646 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of PT-141 and Pal-GHK
PubChem lists PT-141 as C50H68N14O10 (1025.2 g/mol) and Pal-GHK as C30H54N6O5 (578.8 g/mol). PT-141 is a cyclic peptide; Pal-GHK is a lipopeptide. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of PT-141 equals how many mg of Pal-GHK in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of Pal-GHK (MW 578.8) would weigh 5.646 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 Pal-GHK in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of Pal-GHK (MW 578.8) would weigh 2.823 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Pal-GHK equals how many mg of PT-141 in moles?
10 mg of Pal-GHK (MW 578.8) is 17.277 µmol. The same amount of PT-141 (MW 1025.2) would weigh 17.713 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 Pal-GHK?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-pt-141/#sqa-040500
APA
Sable Peptides. (2026, October 11). *What is the difference between PT-141 and Pal-GHK?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-pt-141/#sqa-040500
BibTeX
@misc{sable_#sqa-040500_2026,
author = {{Sable Peptides}},
title = {{What is the difference between PT-141 and Pal-GHK?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-pt-141/#sqa-040500}},
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