Sable · Question
What is the difference between Kisspeptin-10 and P21?
Kisspeptin-10 is the C-terminal decapeptide of kisspeptin, used as a KISS1R (GPR54) agonist in reproductive neuroendocrinology research (peptide, MW about 1302.4 g/mol).
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Last verified 2026-10-10
What is the difference between Kisspeptin-10 and P21?
Kisspeptin-10 is the C-terminal decapeptide of kisspeptin, used as a KISS1R (GPR54) agonist in reproductive neuroendocrinology research (peptide, MW about 1302.4 g/mol).
Which is heavier, Kisspeptin-10 or P21?
Kisspeptin-10 has a molecular weight of about 1302.4 g/mol and P21 about 578.7 g/mol (PubChem), so Kisspeptin-10 is heavier by 723.7 g/mol, a ratio of 2.25. This means 1 mg of Kisspeptin-10 contains 767.8 nmol versus 1,728 nmol for P21.
How many mg of P21 are equimolar to 1 mg of Kisspeptin-10?
1 mg of Kisspeptin-10 (MW 1302.4) is 767.8 nmol. The same number of moles of P21 (MW 578.7) weighs 0.4443 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Kisspeptin-10 and P21
PubChem lists Kisspeptin-10 as C63H83N17O14 (1302.4 g/mol) and P21 as C27H42N6O8 (578.7 g/mol). Kisspeptin-10 is a peptide; P21 is a peptidomimetic. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Kisspeptin-10 equals how many mg of P21 in moles?
5 mg of Kisspeptin-10 (MW 1302.4) is 3.839 µmol. The same amount of P21 (MW 578.7) would weigh 2.222 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Kisspeptin-10 equals how many mg of P21 in moles?
10 mg of Kisspeptin-10 (MW 1302.4) is 7.678 µmol. The same amount of P21 (MW 578.7) would weigh 4.443 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 Kisspeptin-10 in moles?
10 mg of P21 (MW 578.7) is 17.28 µmol. The same amount of Kisspeptin-10 (MW 1302.4) would weigh 22.506 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 Kisspeptin-10 in moles?
5 mg of P21 (MW 578.7) is 8.64 µmol. The same amount of Kisspeptin-10 (MW 1302.4) would weigh 11.253 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about kisspeptin-10
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 Kisspeptin-10 and P21?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/kisspeptin-10-vs-p21/#sqa-039839
APA
Sable Peptides. (2026, October 11). *What is the difference between Kisspeptin-10 and P21?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/kisspeptin-10-vs-p21/#sqa-039839
BibTeX
@misc{sable_#sqa-039839_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Kisspeptin-10 and P21?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/kisspeptin-10-vs-p21/#sqa-039839}},
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