Sable · Question
What is the difference between MOTS-c and Semax?
MOTS-c is a 16-residue mitochondrial-derived peptide encoded in the 12S rRNA region, described in 2015 and studied in cellular metabolism research (peptide, MW about 2174.6 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between MOTS-c and Semax?
MOTS-c is a 16-residue mitochondrial-derived peptide encoded in the 12S rRNA region, described in 2015 and studied in cellular metabolism research (peptide, MW about 2174.6 g/mol).
Which is heavier, MOTS-c or Semax?
MOTS-c has a molecular weight of about 2174.6 g/mol and Semax about 813.9 g/mol (PubChem), so MOTS-c is heavier by 1,360.7 g/mol, a ratio of 2.67. This means 1 mg of MOTS-c contains 459.9 nmol versus 1,228.7 nmol for Semax.
How many mg of Semax are equimolar to 1 mg of MOTS-c?
1 mg of MOTS-c (MW 2174.6) is 459.9 nmol. The same number of moles of Semax (MW 813.9) weighs 0.3743 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of MOTS-c and Semax
PubChem lists MOTS-c as C101H152N28O22S2 (2174.6 g/mol) and Semax as C37H51N9O10S (813.9 g/mol). MOTS-c is a peptide; Semax is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of MOTS-c equals how many mg of Semax in moles?
5 mg of MOTS-c (MW 2174.6) is 2.299 µmol. The same amount of Semax (MW 813.9) would weigh 1.871 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of MOTS-c equals how many mg of Semax in moles?
10 mg of MOTS-c (MW 2174.6) is 4.599 µmol. The same amount of Semax (MW 813.9) would weigh 3.743 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of MOTS-c equals how many mg of Semax in moles?
20 mg of MOTS-c (MW 2174.6) is 9.197 µmol. The same amount of Semax (MW 813.9) would weigh 7.486 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of MOTS-c equals how many mg of Semax in moles?
30 mg of MOTS-c (MW 2174.6) is 13.796 µmol. The same amount of Semax (MW 813.9) would weigh 11.228 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 40 mg vial of MOTS-c equals how many mg of Semax in moles?
40 mg of MOTS-c (MW 2174.6) is 18.394 µmol. The same amount of Semax (MW 813.9) would weigh 14.971 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Semax equals how many mg of MOTS-c in moles?
5 mg of Semax (MW 813.9) is 6.143 µmol. The same amount of MOTS-c (MW 2174.6) would weigh 13.359 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Semax equals how many mg of MOTS-c in moles?
10 mg of Semax (MW 813.9) is 12.287 µmol. The same amount of MOTS-c (MW 2174.6) would weigh 26.718 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of Semax equals how many mg of MOTS-c in moles?
30 mg of Semax (MW 813.9) is 36.86 µmol. The same amount of MOTS-c (MW 2174.6) would weigh 80.155 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
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 MOTS-c and Semax?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/mots-c-vs-semax/#sqa-039997
APA
Sable Peptides. (2026, October 11). *What is the difference between MOTS-c and Semax?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/mots-c-vs-semax/#sqa-039997
BibTeX
@misc{sable_#sqa-039997_2026,
author = {{Sable Peptides}},
title = {{What is the difference between MOTS-c and Semax?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/mots-c-vs-semax/#sqa-039997}},
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