4'-Chlorosalicylanilide is primarily used as an antimicrobial agent, particularly effective against fungi and bacteria. It is commonly incorporated into disinfectants and antiseptic formulations for use in medical and veterinary settings to prevent infections. The compound is also utilized in the preservation of textiles, leather, and other materials susceptible to microbial degradation. Additionally, it finds application in agricultural products to protect crops from fungal infections, enhancing yield and quality. Its effectiveness in controlling microbial growth makes it a valuable component in various industrial and healthcare applications.