Sitafloxacin (INN; also called DU-6859a) is a fluoroquinolone antibiotic that shows promise in the treatment of Buruli ulcer.

DSR-6434 has a strong antitumor effect. DSR-6434 is a potent and selective Toll-like receptor 7 (TLR7) agonist, with EC50s of 7.2 nM and 4.6 nM for human and mice TLR7, respectively.

FM4-64 (SynaptoRedTM C2) is a styryl dye that stains stably but does not fluoresce in aqueous solution.FM4-64 does not passively diffuse into the plasma membrane bilayer and must be actively transported across the membrane.