Sable · Question
What is the difference between Semax and Cartalax?
Semax is a heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro, studied in neuropeptide and BDNF-expression research in rodent models (peptide, MW about 813.9 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Semax and Cartalax?
Semax is a heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro, studied in neuropeptide and BDNF-expression research in rodent models (peptide, MW about 813.9 g/mol).
Which is heavier, Semax or Cartalax?
Semax has a molecular weight of about 813.9 g/mol and Cartalax about 333.29 g/mol (PubChem), so Semax is heavier by 480.6 g/mol, a ratio of 2.44. This means 1 mg of Semax contains 1,228.7 nmol versus 3,000.4 nmol for Cartalax.
How many mg of Cartalax are equimolar to 1 mg of Semax?
1 mg of Semax (MW 813.9) is 1,228.7 nmol. The same number of moles of Cartalax (MW 333.29) weighs 0.4095 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Semax and Cartalax
PubChem lists Semax as C37H51N9O10S (813.9 g/mol) and Cartalax as C12H19N3O8 (333.29 g/mol). Semax is a peptide; Cartalax is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of Cartalax equals how many mg of Semax in moles?
10 mg of Cartalax (MW 333.29) is 30.004 µmol. The same amount of Semax (MW 813.9) would weigh 24.42 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of Cartalax equals how many mg of Semax in moles?
20 mg of Cartalax (MW 333.29) is 60.008 µmol. The same amount of Semax (MW 813.9) would weigh 48.84 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 Cartalax in moles?
5 mg of Semax (MW 813.9) is 6.143 µmol. The same amount of Cartalax (MW 333.29) would weigh 2.047 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 Cartalax in moles?
10 mg of Semax (MW 813.9) is 12.287 µmol. The same amount of Cartalax (MW 333.29) would weigh 4.095 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 Cartalax in moles?
30 mg of Semax (MW 813.9) is 36.86 µmol. The same amount of Cartalax (MW 333.29) would weigh 12.285 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 Semax and Cartalax?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/cartalax-vs-semax/#sqa-040843
APA
Sable Peptides. (2026, October 11). *What is the difference between Semax and Cartalax?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/cartalax-vs-semax/#sqa-040843
BibTeX
@misc{sable_#sqa-040843_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Semax and Cartalax?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/cartalax-vs-semax/#sqa-040843}},
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