Used as a precursor in sol-gel processes for the synthesis of antimony-containing oxide materials, particularly in the production of transparent conducting films and electro-optical devices. It serves as a source of antimony in the fabrication of semiconductor materials and is employed in the preparation of catalysts for polymerization and oxidation reactions. Its reactivity makes it suitable for coating applications requiring uniform thin films with controlled composition. Also utilized in research for developing new metal-oxide coatings with specific electrical or optical properties.