High affinity apelin receptor agonist. Binds apelin receptors in left ventricle from normal and pulmonary arterial hypertensive (PAH) hearts (pKi values are 9.31 and 9.46, respectively). Bioactive fragment of ELA-32. Inhibits forskolin-induced cAMP production and stimulates β-arrestin recruitment in vitro.

Compound PDK0269, as 5-HT3 receptor agonists(3–100 μM, pEC50 5.05±0.06), acutely increased XII (hypoglossal) burst frequency and regularity, and decreased bursts/episode .

Chlormequat chloride, a plant growth regulator, is widely applied in agriculture because it can promote sturdier growth of the crops.