Tributyltin (TBT) is an organotin compound that has been widely used as a biocide in marine paints, wood preservatives, and antifouling agents. It is effective in preventing the growth of barnacles and other marine organisms on ships and boats, which helps maintain their performance and longevity. However, TBT is also known for its harmful environmental effects. It can accumulate in marine organisms, leading to toxic effects on aquatic life and disrupting ecosystems. Due to these concerns, many countries have restricted or banned the use of tributyltin in recent years.