Mepacrine (Erion) is an acridine derivative formerly widely used as an antimalarial. It is used in cell biological experiments as an inhibitor of phospholipase A2.

L-Threonic acid magnesium salt (L-TAMS) increases synapse density and memory ability in both aged rats and late stage Alzheimer’s disease (AD) model mice.

5'-Fluoro-5'-deoxyadenosine (5'-Fluoro-5'-deoxy-adenosine) is utilized commonly as a tool for studying the Actinomycete bacterium Streptomyces cattleya.