Phenylethylamine functions as a monoaminergic neuromodulator and, to a lesser extent, a neurotransmitter in the human central nervous system.

Bitertanol is a triazole fungicide. Bitertanol inhibits demethylation, disrupts membrane function, and prevents sterol synthesis.

Magainin II is a member of the antimicrobial peptides familyMagainin 2 exhibits bactericidal effects and induces morphological changes in Escherichia coli regarding early apoptosis. Magainin 2 induces the expression of a bacterial protein with affinity for the caspase substrate and effects the expression of RecA as a caspase-like protein.