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.

MGH-CP1 is a potent and selective inhibitor TEAD palmitoylation. It exhibits dose-dependent and potent inhibition of TEAD2/4 auto-palmitoylation in vitro with IC50 of 710 nM and 672 nM, respectively.

Levofloxacin N-oxide is an impurity isolated from levofloxacin.