Sable · Question
What is the difference between Melanotan I and Matrixyl?
Melanotan I is a linear 13-residue alpha-MSH analogue used in melanocortin-1 receptor research (peptide, MW about 1646.8 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Melanotan I and Matrixyl?
Melanotan I is a linear 13-residue alpha-MSH analogue used in melanocortin-1 receptor research (peptide, MW about 1646.8 g/mol).
Which is heavier, Melanotan I or Matrixyl?
Melanotan I has a molecular weight of about 1646.8 g/mol and Matrixyl about 802.1 g/mol (PubChem), so Melanotan I is heavier by 844.7 g/mol, a ratio of 2.05. This means 1 mg of Melanotan I contains 607.2 nmol versus 1,246.7 nmol for Matrixyl.
How many mg of Matrixyl are equimolar to 1 mg of Melanotan I?
1 mg of Melanotan I (MW 1646.8) is 607.2 nmol. The same number of moles of Matrixyl (MW 802.1) weighs 0.4871 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Melanotan I and Matrixyl
PubChem lists Melanotan I as C78H111N21O19 (1646.8 g/mol) and Matrixyl as C39H75N7O10 (802.1 g/mol). Melanotan I is a peptide; Matrixyl is a lipopeptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Matrixyl equals how many mg of Melanotan I in moles?
5 mg of Matrixyl (MW 802.1) is 6.234 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 10.266 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Matrixyl equals how many mg of Melanotan II in moles?
5 mg of Matrixyl (MW 802.1) is 6.234 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 6.384 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Matrixyl equals how many mg of Melanotan I in moles?
10 mg of Matrixyl (MW 802.1) is 12.467 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 20.531 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Matrixyl equals how many mg of Melanotan II in moles?
10 mg of Matrixyl (MW 802.1) is 12.467 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 12.769 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 Matrixyl in moles?
5 mg of Melanotan I (MW 1646.8) is 3.036 µmol. The same amount of Matrixyl (MW 802.1) would weigh 2.435 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 Matrixyl in moles?
10 mg of Melanotan I (MW 1646.8) is 6.072 µmol. The same amount of Matrixyl (MW 802.1) would weigh 4.871 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about melanotan-i
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 Melanotan I and Matrixyl?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-melanotan-i/#sqa-040136
APA
Sable Peptides. (2026, October 11). *What is the difference between Melanotan I and Matrixyl?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-melanotan-i/#sqa-040136
BibTeX
@misc{sable_#sqa-040136_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Melanotan I and Matrixyl?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-melanotan-i/#sqa-040136}},
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