Sable · Question
What is the difference between Triptorelin and P21?
Triptorelin is a GnRH decapeptide analogue with D-Trp at position 6, used as a potent GnRH receptor agonist in reproductive endocrinology research (peptide, MW about 1311.4 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between Triptorelin and P21?
Triptorelin is a GnRH decapeptide analogue with D-Trp at position 6, used as a potent GnRH receptor agonist in reproductive endocrinology research (peptide, MW about 1311.4 g/mol).
Which is heavier, Triptorelin or P21?
Triptorelin has a molecular weight of about 1311.4 g/mol and P21 about 578.7 g/mol (PubChem), so Triptorelin is heavier by 732.7 g/mol, a ratio of 2.27. This means 1 mg of Triptorelin contains 762.5 nmol versus 1,728 nmol for P21.
How many mg of P21 are equimolar to 1 mg of Triptorelin?
1 mg of Triptorelin (MW 1311.4) is 762.5 nmol. The same number of moles of P21 (MW 578.7) weighs 0.4413 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Triptorelin and P21
PubChem lists Triptorelin as C64H82N18O13 (1311.4 g/mol) and P21 as C27H42N6O8 (578.7 g/mol). Triptorelin is a peptide; P21 is a peptidomimetic. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of P21 equals how many mg of Triptorelin in moles?
10 mg of P21 (MW 578.7) is 17.28 µmol. The same amount of Triptorelin (MW 1311.4) would weigh 22.661 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 Triptorelin in moles?
5 mg of P21 (MW 578.7) is 8.64 µmol. The same amount of Triptorelin (MW 1311.4) would weigh 11.331 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Triptorelin equals how many mg of P21 in moles?
2 mg of Triptorelin (MW 1311.4) is 1.525 µmol. The same amount of P21 (MW 578.7) would weigh 0.8826 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Triptorelin equals how many mg of P21 in moles?
5 mg of Triptorelin (MW 1311.4) is 3.813 µmol. The same amount of P21 (MW 578.7) would weigh 2.206 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about triptorelin
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 Triptorelin and P21?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/p21-vs-triptorelin/#sqa-041114
APA
Sable Peptides. (2026, October 11). *What is the difference between Triptorelin and P21?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/p21-vs-triptorelin/#sqa-041114
BibTeX
@misc{sable_#sqa-041114_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Triptorelin and P21?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/p21-vs-triptorelin/#sqa-041114}},
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