6-O-Acetyldaidzin is an isoflavone glycoside isolated from soybeans. It significantly inhibits lipid peroxidation in rat liver microsome (IC50: 8.2 μM).
Laidlomycin, a polyether, polycyclic, monocarboxylic acid, possesses inhibitory activity against various Mycoplasma species, especially Acholeplasma laidlawii.