Tributylamine (dichloromethylene)bis(phosphonate) is primarily used as a flame retardant in various polymer materials, including plastics and textiles. It works by promoting char formation and reducing the flammability of the material, making it suitable for applications in electronics, construction, and automotive industries where fire safety is critical. Additionally, it is employed as a stabilizer in certain chemical processes, helping to prevent degradation of materials under high temperatures or harsh conditions. Its effectiveness in these roles makes it a valuable component in enhancing the safety and durability of industrial products.