Floxacrine (HOE-991) is a dihydroacridinedione derivative with antimalarial activity. Floxacrine can be used to study its activity against different Plasmodium species[1].
References
[1] Schmidt, et al. "Antimalarial properties of floxacrine, a dihydroacridinedione derivative." Antimicrobial Agents and Chemotherapy 16.4 (1979): 475-485. DOI:10.1128/AAC.16.4.475