Used as a catalyst in the production of polyester compounds, especially in the synthesis of polyethylene terephthalate (PET) for plastics and fibers. It offers high efficiency in condensation reactions, helping to achieve faster reaction rates and improved product clarity. Also applied in flame retardant formulations, where it works synergistically with halogenated compounds to enhance fire resistance in textiles, plastics, and electronic materials. In some cases, utilized in the manufacturing of semiconductors and infrared absorbers due to its unique electronic properties.