Sable · Question
What is the difference between Hexarelin and Melanotan I?
Hexarelin is a synthetic hexapeptide growth hormone secretagogue, also studied for binding to the CD36 receptor in cardiovascular research models (peptide, MW about 887 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Hexarelin and Melanotan I?
Hexarelin is a synthetic hexapeptide growth hormone secretagogue, also studied for binding to the CD36 receptor in cardiovascular research models (peptide, MW about 887 g/mol).
Which is heavier, Hexarelin or Melanotan I?
Hexarelin has a molecular weight of about 887 g/mol and Melanotan I about 1646.8 g/mol (PubChem), so Melanotan I is heavier by 759.8 g/mol, a ratio of 1.86. This means 1 mg of Hexarelin contains 1,127.4 nmol versus 607.2 nmol for Melanotan I.
How many mg of Melanotan I are equimolar to 1 mg of Hexarelin?
1 mg of Hexarelin (MW 887) is 1,127.4 nmol. The same number of moles of Melanotan I (MW 1646.8) weighs 1.857 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Hexarelin and Melanotan I
PubChem lists Hexarelin as C47H58N12O6 (887 g/mol) and Melanotan I as C78H111N21O19 (1646.8 g/mol). Hexarelin is a peptide; Melanotan I is a peptide. These formulas refer to the parent compounds without salt counter-ions.
What is the difference between Hexarelin and Melanotan II?
Hexarelin is a synthetic hexapeptide growth hormone secretagogue, also studied for binding to the CD36 receptor in cardiovascular research models (peptide, MW about 887 g/mol).
Which is heavier, Hexarelin or Melanotan II?
Hexarelin has a molecular weight of about 887 g/mol and Melanotan II about 1024.2 g/mol (PubChem), so Melanotan II is heavier by 137.2 g/mol, a ratio of 1.15. This means 1 mg of Hexarelin contains 1,127.4 nmol versus 976.4 nmol for Melanotan II.
How many mg of Melanotan II are equimolar to 1 mg of Hexarelin?
1 mg of Hexarelin (MW 887) is 1,127.4 nmol. The same number of moles of Melanotan II (MW 1024.2) weighs 1.155 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Hexarelin and Melanotan II
PubChem lists Hexarelin as C47H58N12O6 (887 g/mol) and Melanotan II as C50H69N15O9 (1024.2 g/mol). Hexarelin is a peptide; Melanotan II is a cyclic peptide. These formulas refer to the parent compounds without salt counter-ions.
A 2 mg vial of Hexarelin equals how many mg of Melanotan I in moles?
2 mg of Hexarelin (MW 887) is 2.255 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 3.713 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Hexarelin equals how many mg of Melanotan II in moles?
2 mg of Hexarelin (MW 887) is 2.255 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 2.309 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Hexarelin equals how many mg of Melanotan I in moles?
5 mg of Hexarelin (MW 887) is 5.637 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 9.283 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Hexarelin equals how many mg of Melanotan II in moles?
5 mg of Hexarelin (MW 887) is 5.637 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 5.773 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Hexarelin equals how many mg of Melanotan I in moles?
10 mg of Hexarelin (MW 887) is 11.274 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 18.566 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Hexarelin equals how many mg of Melanotan II in moles?
10 mg of Hexarelin (MW 887) is 11.274 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 11.547 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Melanotan I equals how many mg of Hexarelin in moles?
5 mg of Melanotan I (MW 1646.8) is 3.036 µmol. The same amount of Hexarelin (MW 887) would weigh 2.693 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Melanotan I equals how many mg of Hexarelin in moles?
10 mg of Melanotan I (MW 1646.8) is 6.072 µmol. The same amount of Hexarelin (MW 887) would weigh 5.386 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about hexarelin
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 Hexarelin and Melanotan I?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/hexarelin-vs-melanotan-i/#sqa-039406
APA
Sable Peptides. (2026, October 11). *What is the difference between Hexarelin and Melanotan I?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/hexarelin-vs-melanotan-i/#sqa-039406
BibTeX
@misc{sable_#sqa-039406_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Hexarelin and Melanotan I?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/hexarelin-vs-melanotan-i/#sqa-039406}},
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