Sable · Question
What is the difference between LL-37 and Sermorelin?
LL-37 is the 37-residue active fragment of the human cathelicidin hCAP18, studied in antimicrobial-peptide and innate-immunity research (peptide, MW about 4493 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between LL-37 and Sermorelin?
LL-37 is the 37-residue active fragment of the human cathelicidin hCAP18, studied in antimicrobial-peptide and innate-immunity research (peptide, MW about 4493 g/mol).
Which is heavier, LL-37 or Sermorelin?
LL-37 has a molecular weight of about 4493 g/mol and Sermorelin about 3357.9 g/mol (PubChem), so LL-37 is heavier by 1,135.1 g/mol, a ratio of 1.34. This means 1 mg of LL-37 contains 222.6 nmol versus 297.8 nmol for Sermorelin.
How many mg of Sermorelin are equimolar to 1 mg of LL-37?
1 mg of LL-37 (MW 4493) is 222.6 nmol. The same number of moles of Sermorelin (MW 3357.9) weighs 0.7474 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of LL-37 and Sermorelin
PubChem lists LL-37 as C205H340N60O53 (4493 g/mol) and Sermorelin as C149H246N44O42S (3357.9 g/mol). LL-37 is a peptide; Sermorelin is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 10 mg vial of LL-37 equals how many mg of Sermorelin in moles?
10 mg of LL-37 (MW 4493) is 2.226 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 7.474 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of LL-37 equals how many mg of Sermorelin in moles?
5 mg of LL-37 (MW 4493) is 1.113 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 3.737 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Sermorelin equals how many mg of LL-37 in moles?
2 mg of Sermorelin (MW 3357.9) is 0.5956 µmol. The same amount of LL-37 (MW 4493) would weigh 2.676 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Sermorelin equals how many mg of LL-37 in moles?
5 mg of Sermorelin (MW 3357.9) is 1.489 µmol. The same amount of LL-37 (MW 4493) would weigh 6.69 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Sermorelin equals how many mg of LL-37 in moles?
10 mg of Sermorelin (MW 3357.9) is 2.978 µmol. The same amount of LL-37 (MW 4493) would weigh 13.38 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 LL-37 and Sermorelin?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ll-37-vs-sermorelin/#sqa-039898
APA
Sable Peptides. (2026, October 11). *What is the difference between LL-37 and Sermorelin?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ll-37-vs-sermorelin/#sqa-039898
BibTeX
@misc{sable_#sqa-039898_2026,
author = {{Sable Peptides}},
title = {{What is the difference between LL-37 and Sermorelin?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ll-37-vs-sermorelin/#sqa-039898}},
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