Cyclotriazadisulfonamide is primarily utilized in the field of water treatment due to its effective antimicrobial properties. It is commonly applied to control the growth of bacteria, algae, and fungi in cooling towers, swimming pools, and other water systems. Its ability to inhibit microbial growth helps maintain water quality and prevents biofouling, which can lead to system inefficiencies and damage. Additionally, it is used in some industrial processes where microbial contamination needs to be minimized to ensure product integrity and safety. Its stability and effectiveness under various conditions make it a reliable choice for long-term water system maintenance.