Sable · Question
What is the difference between PT-141 and SLU-PP-332?
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 SLU-PP-332?
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 SLU-PP-332?
PT-141 has a molecular weight of about 1025.2 g/mol and SLU-PP-332 about 290.3 g/mol (PubChem), so PT-141 is heavier by 734.9 g/mol, a ratio of 3.53. This means 1 mg of PT-141 contains 975.4 nmol versus 3,444.7 nmol for SLU-PP-332.
How many mg of SLU-PP-332 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 SLU-PP-332 (MW 290.3) weighs 0.2832 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of PT-141 and SLU-PP-332
PubChem lists PT-141 as C50H68N14O10 (1025.2 g/mol) and SLU-PP-332 as C18H14N2O2 (290.3 g/mol). PT-141 is a cyclic peptide; SLU-PP-332 is a small molecule (not 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 SLU-PP-332 in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of SLU-PP-332 (MW 290.3) would weigh 2.832 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 SLU-PP-332 in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of SLU-PP-332 (MW 290.3) would weigh 1.416 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of SLU-PP-332 equals how many mg of PT-141 in moles?
10 mg of SLU-PP-332 (MW 290.3) is 34.447 µmol. The same amount of PT-141 (MW 1025.2) would weigh 35.315 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of SLU-PP-332 equals how many mg of PT-141 in moles?
5 mg of SLU-PP-332 (MW 290.3) is 17.224 µmol. The same amount of PT-141 (MW 1025.2) would weigh 17.658 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 SLU-PP-332?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-slu-pp-332/#sqa-040436
APA
Sable Peptides. (2026, October 11). *What is the difference between PT-141 and SLU-PP-332?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-slu-pp-332/#sqa-040436
BibTeX
@misc{sable_#sqa-040436_2026,
author = {{Sable Peptides}},
title = {{What is the difference between PT-141 and SLU-PP-332?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/pt-141-vs-slu-pp-332/#sqa-040436}},
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