Sable · Question
What is the difference between Gonadorelin and P21?
Gonadorelin is the synthetic form of native gonadotropin-releasing hormone, a decapeptide used as a reference agonist in GnRH receptor research (peptide, MW about 1182.3 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Gonadorelin and P21?
Gonadorelin is the synthetic form of native gonadotropin-releasing hormone, a decapeptide used as a reference agonist in GnRH receptor research (peptide, MW about 1182.3 g/mol).
Which is heavier, Gonadorelin or P21?
Gonadorelin has a molecular weight of about 1182.3 g/mol and P21 about 578.7 g/mol (PubChem), so Gonadorelin is heavier by 603.6 g/mol, a ratio of 2.04. This means 1 mg of Gonadorelin contains 845.8 nmol versus 1,728 nmol for P21.
How many mg of P21 are equimolar to 1 mg of Gonadorelin?
1 mg of Gonadorelin (MW 1182.3) is 845.8 nmol. The same number of moles of P21 (MW 578.7) weighs 0.4895 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Gonadorelin and P21
PubChem lists Gonadorelin as C55H75N17O13 (1182.3 g/mol) and P21 as C27H42N6O8 (578.7 g/mol). Gonadorelin is a peptide; P21 is a peptidomimetic. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Gonadorelin equals how many mg of P21 in moles?
5 mg of Gonadorelin (MW 1182.3) is 4.229 µmol. The same amount of P21 (MW 578.7) would weigh 2.447 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Gonadorelin equals how many mg of P21 in moles?
10 mg of Gonadorelin (MW 1182.3) is 8.458 µmol. The same amount of P21 (MW 578.7) would weigh 4.895 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of P21 equals how many mg of Gonadorelin in moles?
10 mg of P21 (MW 578.7) is 17.28 µmol. The same amount of Gonadorelin (MW 1182.3) would weigh 20.43 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of P21 equals how many mg of Gonadorelin in moles?
5 mg of P21 (MW 578.7) is 8.64 µmol. The same amount of Gonadorelin (MW 1182.3) would weigh 10.215 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about gonadorelin
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 Gonadorelin and P21?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/gonadorelin-vs-p21/#sqa-039371
APA
Sable Peptides. (2026, October 11). *What is the difference between Gonadorelin and P21?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/gonadorelin-vs-p21/#sqa-039371
BibTeX
@misc{sable_#sqa-039371_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Gonadorelin and P21?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/gonadorelin-vs-p21/#sqa-039371}},
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