Dicentrine, (-)- is an aporphinic alkaloid found in several plant species, which showed significant antinociceptive activity in an acute model of visceral pain in mice.

Malonic acid (propanedioic acid) is the archetypal example of a competitive inhibitor: it acts against succinate dehydrogenase (complex II) in the respiratory electron transport chain. Malonic acid is found to be associated with malonyl-CoA decarboxylase deficiency which is an inborn error of metabolism.

This peptide, a nuclear localization signal DNA tagged to this peptide efficiently translocates into the cell nucleus.