Sable · Question
What is the difference between GHRP-6 and PT-141?
GHRP-6 is one of the earliest synthetic growth hormone secretagogue hexapeptides, used as a ghrelin receptor (GHS-R1a) agonist in endocrine research (peptide, MW about 873 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between GHRP-6 and PT-141?
GHRP-6 is one of the earliest synthetic growth hormone secretagogue hexapeptides, used as a ghrelin receptor (GHS-R1a) agonist in endocrine research (peptide, MW about 873 g/mol).
Which is heavier, GHRP-6 or PT-141?
GHRP-6 has a molecular weight of about 873 g/mol and PT-141 about 1025.2 g/mol (PubChem), so PT-141 is heavier by 152.2 g/mol, a ratio of 1.17. This means 1 mg of GHRP-6 contains 1,145.5 nmol versus 975.4 nmol for PT-141.
How many mg of PT-141 are equimolar to 1 mg of GHRP-6?
1 mg of GHRP-6 (MW 873) is 1,145.5 nmol. The same number of moles of PT-141 (MW 1025.2) weighs 1.174 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHRP-6 and PT-141
PubChem lists GHRP-6 as C46H56N12O6 (873 g/mol) and PT-141 as C50H68N14O10 (1025.2 g/mol). GHRP-6 is a peptide; PT-141 is a cyclic peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of GHRP-6 equals how many mg of PT-141 in moles?
5 mg of GHRP-6 (MW 873) is 5.727 µmol. The same amount of PT-141 (MW 1025.2) would weigh 5.872 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of GHRP-6 equals how many mg of PT-141 in moles?
10 mg of GHRP-6 (MW 873) is 11.455 µmol. The same amount of PT-141 (MW 1025.2) would weigh 11.743 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 GHRP-6 in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of GHRP-6 (MW 873) would weigh 8.515 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 GHRP-6 in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of GHRP-6 (MW 873) would weigh 4.258 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 GHRP-6 and PT-141?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghrp-6-vs-pt-141/#sqa-039172
APA
Sable Peptides. (2026, October 11). *What is the difference between GHRP-6 and PT-141?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghrp-6-vs-pt-141/#sqa-039172
BibTeX
@misc{sable_#sqa-039172_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHRP-6 and PT-141?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghrp-6-vs-pt-141/#sqa-039172}},
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