Acriflavine (Neutral) is primarily used as an antiseptic and disinfectant in medical and veterinary applications. It effectively treats wounds, cuts, and superficial infections by preventing the growth of bacteria and other microorganisms. In aquaculture, it is employed to control bacterial and fungal infections in fish, ensuring healthier aquatic environments. Additionally, it has been utilized in biological research as a staining agent to study cellular structures and processes. Its antimicrobial properties also make it useful in preserving certain biological specimens. However, its use is often limited due to potential toxicity and the availability of alternative agents.