Used as a biocide in industrial water systems to control microbial growth, particularly in cooling towers and paper mill systems. It is effective against bacteria, fungi, and algae, helping prevent biofouling and microbial-induced corrosion. Also employed as a preservative in water-based paints, adhesives, and metalworking fluids due to its broad-spectrum antimicrobial activity and stability under processing conditions. Its chlorine substituents enhance reactivity and efficacy at low concentrations, making it suitable for integration into preservation packages where long-term microbial control is required.