Sable · Question
What is the difference between SS-31 and Pal-GHK?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between SS-31 and Pal-GHK?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Which is heavier, SS-31 or Pal-GHK?
SS-31 has a molecular weight of about 639.8 g/mol and Pal-GHK about 578.8 g/mol (PubChem), so SS-31 is heavier by 61 g/mol, a ratio of 1.11. This means 1 mg of SS-31 contains 1,563 nmol versus 1,727.7 nmol for Pal-GHK.
How many mg of Pal-GHK are equimolar to 1 mg of SS-31?
1 mg of SS-31 (MW 639.8) is 1,563 nmol. The same number of moles of Pal-GHK (MW 578.8) weighs 0.9047 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of SS-31 and Pal-GHK
PubChem lists SS-31 as C32H49N9O5 (639.8 g/mol) and Pal-GHK as C30H54N6O5 (578.8 g/mol). SS-31 is a peptide; Pal-GHK is a lipopeptide. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of Pal-GHK equals how many mg of SS-31 in moles?
10 mg of Pal-GHK (MW 578.8) is 17.277 µmol. The same amount of SS-31 (MW 639.8) would weigh 11.054 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of SS-31 equals how many mg of Pal-GHK in moles?
5 mg of SS-31 (MW 639.8) is 7.815 µmol. The same amount of Pal-GHK (MW 578.8) would weigh 4.523 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of SS-31 equals how many mg of Pal-GHK in moles?
10 mg of SS-31 (MW 639.8) is 15.63 µmol. The same amount of Pal-GHK (MW 578.8) would weigh 9.047 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 SS-31 and Pal-GHK?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-ss-31/#sqa-040654
APA
Sable Peptides. (2026, October 11). *What is the difference between SS-31 and Pal-GHK?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-ss-31/#sqa-040654
BibTeX
@misc{sable_#sqa-040654_2026,
author = {{Sable Peptides}},
title = {{What is the difference between SS-31 and Pal-GHK?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/pal-ghk-vs-ss-31/#sqa-040654}},
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