Sable · Question
What is the difference between Ipamorelin and Sermorelin?
Ipamorelin is a pentapeptide ghrelin receptor agonist reported in 1998 as a selective growth hormone secretagogue in endocrine research (peptide, MW about 711.9 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Ipamorelin and Sermorelin?
Ipamorelin is a pentapeptide ghrelin receptor agonist reported in 1998 as a selective growth hormone secretagogue in endocrine research (peptide, MW about 711.9 g/mol).
Which is heavier, Ipamorelin or Sermorelin?
Ipamorelin has a molecular weight of about 711.9 g/mol and Sermorelin about 3357.9 g/mol (PubChem), so Sermorelin is heavier by 2,646 g/mol, a ratio of 4.72. This means 1 mg of Ipamorelin contains 1,404.7 nmol versus 297.8 nmol for Sermorelin.
How many mg of Sermorelin are equimolar to 1 mg of Ipamorelin?
1 mg of Ipamorelin (MW 711.9) is 1,404.7 nmol. The same number of moles of Sermorelin (MW 3357.9) weighs 4.717 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Ipamorelin and Sermorelin
PubChem lists Ipamorelin as C38H49N9O5 (711.9 g/mol) and Sermorelin as C149H246N44O42S (3357.9 g/mol). Ipamorelin is a peptide; Sermorelin is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 2 mg vial of Ipamorelin equals how many mg of Sermorelin in moles?
2 mg of Ipamorelin (MW 711.9) is 2.809 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 9.434 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Ipamorelin equals how many mg of Sermorelin in moles?
10 mg of Ipamorelin (MW 711.9) is 14.047 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 47.168 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Ipamorelin equals how many mg of Sermorelin in moles?
5 mg of Ipamorelin (MW 711.9) is 7.023 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 23.584 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Sermorelin equals how many mg of Ipamorelin in moles?
2 mg of Sermorelin (MW 3357.9) is 0.5956 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 0.424 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Sermorelin equals how many mg of Ipamorelin in moles?
5 mg of Sermorelin (MW 3357.9) is 1.489 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 1.06 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Sermorelin equals how many mg of Ipamorelin in moles?
10 mg of Sermorelin (MW 3357.9) is 2.978 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 2.12 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about ipamorelin
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 Ipamorelin and Sermorelin?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-sermorelin/#sqa-039565
APA
Sable Peptides. (2026, October 11). *What is the difference between Ipamorelin and Sermorelin?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-sermorelin/#sqa-039565
BibTeX
@misc{sable_#sqa-039565_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Ipamorelin and Sermorelin?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-sermorelin/#sqa-039565}},
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