Sable · Question
What is the difference between Melanotan I and IGF-1 LR3?
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 IGF-1 LR3?
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 IGF-1 LR3?
Melanotan I has a molecular weight of about 1646.8 g/mol and IGF-1 LR3 about 9111 g/mol (PubChem), so IGF-1 LR3 is heavier by 7,464.2 g/mol, a ratio of 5.53. This means 1 mg of Melanotan I contains 607.2 nmol versus 109.8 nmol for IGF-1 LR3.
How many mg of IGF-1 LR3 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 IGF-1 LR3 (MW 9111) weighs 5.533 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 Melanotan I in moles?
0.1 mg of IGF-1 LR3 (MW 9111) is 0.01098 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 0.01807 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 0.1 mg vial of IGF-1 LR3 equals how many mg of Melanotan II in moles?
0.1 mg of IGF-1 LR3 (MW 9111) is 0.01098 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 0.01124 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 Melanotan I in moles?
1 mg of IGF-1 LR3 (MW 9111) is 0.1098 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 0.1807 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 Melanotan II in moles?
1 mg of IGF-1 LR3 (MW 9111) is 0.1098 µmol. The same amount of Melanotan II (MW 1024.2) would weigh 0.1124 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 IGF-1 LR3 in moles?
5 mg of Melanotan I (MW 1646.8) is 3.036 µmol. The same amount of IGF-1 LR3 (MW 9111) would weigh 27.663 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 IGF-1 LR3 in moles?
10 mg of Melanotan I (MW 1646.8) is 6.072 µmol. The same amount of IGF-1 LR3 (MW 9111) would weigh 55.325 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 IGF-1 LR3?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-melanotan-i/#sqa-040160
APA
Sable Peptides. (2026, October 11). *What is the difference between Melanotan I and IGF-1 LR3?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-melanotan-i/#sqa-040160
BibTeX
@misc{sable_#sqa-040160_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Melanotan I and IGF-1 LR3?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/igf-1-lr3-vs-melanotan-i/#sqa-040160}},
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