Dimethyltin dichloride is primarily used as a catalyst in the production of polyurethane foams and silicones. It enhances the curing process, ensuring efficient polymerization and improved material properties. Additionally, it serves as an intermediate in the synthesis of other organotin compounds, which are utilized in stabilizers for PVC to prevent degradation during processing. Its role in these industrial applications contributes to the durability and performance of various plastic and foam products. Handle with care due to potential health and environmental impacts.