At equivalent molar concentrations, both the salt and free forms of a compound exhibit comparable biological activity. Nevertheless, the salt form (Fosfructose trisodium) usually boasts enhanced water solubility and stability.

ACTH (4-11) is a peptide fragment of adrenocorticotropic hormone, a peptide hormone found in the brain that is involved in the biological stress response.

Platycoside F is a triterpenoid saponin compound that can be isolated from the roots ofPlatycodon grandiflorum .