Sable · Question
What is the difference between GHRP-2 and Semax?
GHRP-2 is a synthetic growth hormone secretagogue hexapeptide studied as a ghrelin receptor (GHS-R1a) agonist in endocrine research (peptide, MW about 818 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between GHRP-2 and Semax?
GHRP-2 is a synthetic growth hormone secretagogue hexapeptide studied as a ghrelin receptor (GHS-R1a) agonist in endocrine research (peptide, MW about 818 g/mol).
Which is heavier, GHRP-2 or Semax?
GHRP-2 has a molecular weight of about 818 g/mol and Semax about 813.9 g/mol (PubChem), so GHRP-2 is heavier by 4.1 g/mol, a ratio of 1.01. This means 1 mg of GHRP-2 contains 1,222.5 nmol versus 1,228.7 nmol for Semax.
How many mg of Semax are equimolar to 1 mg of GHRP-2?
1 mg of GHRP-2 (MW 818) is 1,222.5 nmol. The same number of moles of Semax (MW 813.9) weighs 0.995 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHRP-2 and Semax
PubChem lists GHRP-2 as C45H55N9O6 (818 g/mol) and Semax as C37H51N9O10S (813.9 g/mol). GHRP-2 is a peptide; Semax is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of GHRP-2 equals how many mg of Semax in moles?
5 mg of GHRP-2 (MW 818) is 6.112 µmol. The same amount of Semax (MW 813.9) would weigh 4.975 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of GHRP-2 equals how many mg of Semax in moles?
10 mg of GHRP-2 (MW 818) is 12.225 µmol. The same amount of Semax (MW 813.9) would weigh 9.95 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 GHRP-2 in moles?
5 mg of Semax (MW 813.9) is 6.143 µmol. The same amount of GHRP-2 (MW 818) would weigh 5.025 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 GHRP-2 in moles?
10 mg of Semax (MW 813.9) is 12.287 µmol. The same amount of GHRP-2 (MW 818) would weigh 10.05 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 GHRP-2 in moles?
30 mg of Semax (MW 813.9) is 36.86 µmol. The same amount of GHRP-2 (MW 818) would weigh 30.151 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 GHRP-2 and Semax?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghrp-2-vs-semax/#sqa-039061
APA
Sable Peptides. (2026, October 11). *What is the difference between GHRP-2 and Semax?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghrp-2-vs-semax/#sqa-039061
BibTeX
@misc{sable_#sqa-039061_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHRP-2 and Semax?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghrp-2-vs-semax/#sqa-039061}},
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