Sable · Question
What is the difference between Melanotan I and SNAP-8?
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 SNAP-8?
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 SNAP-8?
Melanotan I has a molecular weight of about 1646.8 g/mol and SNAP-8 about 1075.2 g/mol (PubChem), so Melanotan I is heavier by 571.6 g/mol, a ratio of 1.53. This means 1 mg of Melanotan I contains 607.2 nmol versus 930.1 nmol for SNAP-8.
How many mg of SNAP-8 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 SNAP-8 (MW 1075.2) weighs 0.6529 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Melanotan I and SNAP-8
PubChem lists Melanotan I as C78H111N21O19 (1646.8 g/mol) and SNAP-8 as C41H70N16O16S (1075.2 g/mol). Melanotan I is a peptide; SNAP-8 is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Melanotan I equals how many mg of SNAP-8 in moles?
5 mg of Melanotan I (MW 1646.8) is 3.036 µmol. The same amount of SNAP-8 (MW 1075.2) would weigh 3.265 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 SNAP-8 in moles?
10 mg of Melanotan I (MW 1646.8) is 6.072 µmol. The same amount of SNAP-8 (MW 1075.2) would weigh 6.529 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of SNAP-8 equals how many mg of Melanotan I in moles?
5 mg of SNAP-8 (MW 1075.2) is 4.65 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 7.658 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of SNAP-8 equals how many mg of Melanotan I in moles?
10 mg of SNAP-8 (MW 1075.2) is 9.301 µmol. The same amount of Melanotan I (MW 1646.8) would weigh 15.316 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 SNAP-8?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/melanotan-i-vs-snap-8/#sqa-040140
APA
Sable Peptides. (2026, October 11). *What is the difference between Melanotan I and SNAP-8?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/melanotan-i-vs-snap-8/#sqa-040140
BibTeX
@misc{sable_#sqa-040140_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Melanotan I and SNAP-8?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/melanotan-i-vs-snap-8/#sqa-040140}},
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