Sable · Question
What is the difference between Oxytocin and TB-500?
Oxytocin is a nonapeptide neurohypophysial hormone with a disulfide bridge, used as a reference agonist in oxytocin receptor and social-neuroscience research (cyclic nonapeptide, MW about 1007.2 g/mol).
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Last verified 2026-10-10
What is the difference between Oxytocin and TB-500?
Oxytocin is a nonapeptide neurohypophysial hormone with a disulfide bridge, used as a reference agonist in oxytocin receptor and social-neuroscience research (cyclic nonapeptide, MW about 1007.2 g/mol).
Which is heavier, Oxytocin or TB-500?
Oxytocin has a molecular weight of about 1007.2 g/mol and TB-500 about 889 g/mol (PubChem), so Oxytocin is heavier by 118.2 g/mol, a ratio of 1.13. This means 1 mg of Oxytocin contains 992.9 nmol versus 1,124.9 nmol for TB-500.
How many mg of TB-500 are equimolar to 1 mg of Oxytocin?
1 mg of Oxytocin (MW 1007.2) is 992.9 nmol. The same number of moles of TB-500 (MW 889) weighs 0.8826 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of Oxytocin and TB-500
PubChem lists Oxytocin as C43H66N12O12S2 (1007.2 g/mol) and TB-500 as C38H68N10O14 (889 g/mol). Oxytocin is a cyclic nonapeptide; TB-500 is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 2 mg vial of Oxytocin equals how many mg of TB-500 in moles?
2 mg of Oxytocin (MW 1007.2) is 1.986 µmol. The same amount of TB-500 (MW 889) would weigh 1.765 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Oxytocin equals how many mg of TB-500 in moles?
5 mg of Oxytocin (MW 1007.2) is 4.964 µmol. The same amount of TB-500 (MW 889) would weigh 4.413 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of TB-500 equals how many mg of Oxytocin in moles?
10 mg of TB-500 (MW 889) is 11.249 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 11.33 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of TB-500 equals how many mg of Oxytocin in moles?
2 mg of TB-500 (MW 889) is 2.25 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 2.266 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of TB-500 equals how many mg of Oxytocin in moles?
5 mg of TB-500 (MW 889) is 5.624 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 5.665 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 15 mg vial of TB-500 equals how many mg of Oxytocin in moles?
15 mg of TB-500 (MW 889) is 16.873 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 16.994 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of TB-500 equals how many mg of Oxytocin in moles?
20 mg of TB-500 (MW 889) is 22.497 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 22.659 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 Oxytocin and TB-500?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/oxytocin-vs-tb-500/#sqa-040425
APA
Sable Peptides. (2026, October 11). *What is the difference between Oxytocin and TB-500?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/oxytocin-vs-tb-500/#sqa-040425
BibTeX
@misc{sable_#sqa-040425_2026,
author = {{Sable Peptides}},
title = {{What is the difference between Oxytocin and TB-500?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/oxytocin-vs-tb-500/#sqa-040425}},
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