Sable · Question
What is the difference between Ipamorelin and Tesamorelin?
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 Tesamorelin?
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 Tesamorelin?
Ipamorelin has a molecular weight of about 711.9 g/mol and Tesamorelin about 5136 g/mol (PubChem), so Tesamorelin is heavier by 4,424.1 g/mol, a ratio of 7.21. This means 1 mg of Ipamorelin contains 1,404.7 nmol versus 194.7 nmol for Tesamorelin.
How many mg of Tesamorelin 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 Tesamorelin (MW 5136) weighs 7.214 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Ipamorelin and Tesamorelin
PubChem lists Ipamorelin as C38H49N9O5 (711.9 g/mol) and Tesamorelin as C221H366N72O67S (5136 g/mol). Ipamorelin is a peptide; Tesamorelin 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 Tesamorelin in moles?
2 mg of Ipamorelin (MW 711.9) is 2.809 µmol. The same amount of Tesamorelin (MW 5136) would weigh 14.429 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 Tesamorelin in moles?
10 mg of Ipamorelin (MW 711.9) is 14.047 µmol. The same amount of Tesamorelin (MW 5136) would weigh 72.145 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 Tesamorelin in moles?
5 mg of Ipamorelin (MW 711.9) is 7.023 µmol. The same amount of Tesamorelin (MW 5136) would weigh 36.072 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Tesamorelin equals how many mg of Ipamorelin in moles?
2 mg of Tesamorelin (MW 5136) is 0.3894 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 0.2772 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Tesamorelin equals how many mg of Ipamorelin in moles?
10 mg of Tesamorelin (MW 5136) is 1.947 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 1.386 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Tesamorelin equals how many mg of Ipamorelin in moles?
5 mg of Tesamorelin (MW 5136) is 0.9735 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 0.693 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of Tesamorelin equals how many mg of Ipamorelin in moles?
20 mg of Tesamorelin (MW 5136) is 3.894 µmol. The same amount of Ipamorelin (MW 711.9) would weigh 2.772 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 Tesamorelin?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-tesamorelin/#sqa-039569
APA
Sable Peptides. (2026, October 11). *What is the difference between Ipamorelin and Tesamorelin?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-tesamorelin/#sqa-039569
BibTeX
@misc{sable_#sqa-039569_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Ipamorelin and Tesamorelin?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ipamorelin-vs-tesamorelin/#sqa-039569}},
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