(R)-Nepicastat HCl, the R-enantiomer of Nepicastat HCl, is a potent and selective inhibitor with IC50 of 25.1 nM and 18.3 nM for bovine and human dopamine-β-hydroxylase, with negligible affinity for twelve other enzymes and thirteen neurotransmitter receptors.

Depressine is a natural product from Gentiana depressa.

Azimsulfuron is a herbicide and can be used in the control of weeds in paddy fields.