Sable · Question
What is the difference between SS-31 and IGF-1 LR3?
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 IGF-1 LR3?
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 IGF-1 LR3?
SS-31 has a molecular weight of about 639.8 g/mol and IGF-1 LR3 about 9111 g/mol (PubChem), so IGF-1 LR3 is heavier by 8,471.2 g/mol, a ratio of 14.24. This means 1 mg of SS-31 contains 1,563 nmol versus 109.8 nmol for IGF-1 LR3.
How many mg of IGF-1 LR3 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 IGF-1 LR3 (MW 9111) weighs 14.24 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
A 0.1 mg vial of IGF-1 LR3 equals how many mg of SS-31 in moles?
0.1 mg of IGF-1 LR3 (MW 9111) is 0.01098 µmol. The same amount of SS-31 (MW 639.8) would weigh 0.007022 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 1 mg vial of IGF-1 LR3 equals how many mg of SS-31 in moles?
1 mg of IGF-1 LR3 (MW 9111) is 0.1098 µmol. The same amount of SS-31 (MW 639.8) would weigh 0.07022 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 IGF-1 LR3 in moles?
5 mg of SS-31 (MW 639.8) is 7.815 µmol. The same amount of IGF-1 LR3 (MW 9111) would weigh 71.202 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 IGF-1 LR3 in moles?
10 mg of SS-31 (MW 639.8) is 15.63 µmol. The same amount of IGF-1 LR3 (MW 9111) would weigh 142.4 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 IGF-1 LR3?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-ss-31/#sqa-040670
APA
Sable Peptides. (2026, October 11). *What is the difference between SS-31 and IGF-1 LR3?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-ss-31/#sqa-040670
BibTeX
@misc{sable_#sqa-040670_2026,
author = {{Sable Peptides}},
title = {{What is the difference between SS-31 and IGF-1 LR3?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-ss-31/#sqa-040670}},
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