Sable · Question
What is the difference between Tirzepatide and P21?
Tirzepatide is a 39-residue dual GIP and GLP-1 receptor agonist with a C20 fatty diacid moiety, studied in incretin receptor pharmacology (peptide (lipidated), MW about 4813 g/mol).
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Last verified 2026-10-10
What is the difference between Tirzepatide and P21?
Tirzepatide is a 39-residue dual GIP and GLP-1 receptor agonist with a C20 fatty diacid moiety, studied in incretin receptor pharmacology (peptide (lipidated), MW about 4813 g/mol).
Which is heavier, Tirzepatide or P21?
Tirzepatide has a molecular weight of about 4813 g/mol and P21 about 578.7 g/mol (PubChem), so Tirzepatide is heavier by 4,234.3 g/mol, a ratio of 8.32. This means 1 mg of Tirzepatide contains 207.8 nmol versus 1,728 nmol for P21.
How many mg of P21 are equimolar to 1 mg of Tirzepatide?
1 mg of Tirzepatide (MW 4813) is 207.8 nmol. The same number of moles of P21 (MW 578.7) weighs 0.1202 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Tirzepatide and P21
PubChem lists Tirzepatide as C225H348N48O68 (4813 g/mol) and P21 as C27H42N6O8 (578.7 g/mol). Tirzepatide is a peptide (lipidated); 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 Tirzepatide in moles?
10 mg of P21 (MW 578.7) is 17.28 µmol. The same amount of Tirzepatide (MW 4813) would weigh 83.169 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 Tirzepatide in moles?
5 mg of P21 (MW 578.7) is 8.64 µmol. The same amount of Tirzepatide (MW 4813) would weigh 41.585 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of Tirzepatide equals how many mg of P21 in moles?
20 mg of Tirzepatide (MW 4813) is 4.155 µmol. The same amount of P21 (MW 578.7) would weigh 2.405 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Tirzepatide equals how many mg of P21 in moles?
10 mg of Tirzepatide (MW 4813) is 2.078 µmol. The same amount of P21 (MW 578.7) would weigh 1.202 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Tirzepatide equals how many mg of P21 in moles?
5 mg of Tirzepatide (MW 4813) is 1.039 µmol. The same amount of P21 (MW 578.7) would weigh 0.6012 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of Tirzepatide equals how many mg of P21 in moles?
30 mg of Tirzepatide (MW 4813) is 6.233 µmol. The same amount of P21 (MW 578.7) would weigh 3.607 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 40 mg vial of Tirzepatide equals how many mg of P21 in moles?
40 mg of Tirzepatide (MW 4813) is 8.311 µmol. The same amount of P21 (MW 578.7) would weigh 4.809 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 15 mg vial of Tirzepatide equals how many mg of P21 in moles?
15 mg of Tirzepatide (MW 4813) is 3.117 µmol. The same amount of P21 (MW 578.7) would weigh 1.804 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 60 mg vial of Tirzepatide equals how many mg of P21 in moles?
60 mg of Tirzepatide (MW 4813) is 12.466 µmol. The same amount of P21 (MW 578.7) would weigh 7.214 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
More questions about tirzepatide
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 Tirzepatide and P21?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/p21-vs-tirzepatide/#sqa-041071
APA
Sable Peptides. (2026, October 11). *What is the difference between Tirzepatide and P21?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/p21-vs-tirzepatide/#sqa-041071
BibTeX
@misc{sable_#sqa-041071_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Tirzepatide and P21?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/p21-vs-tirzepatide/#sqa-041071}},
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