Used as a precursor in the synthesis of tungsten sulfide-based materials, particularly for creating catalysts in hydrodesulfurization processes within the petroleum industry. It plays a key role in producing advanced materials for electrocatalysis, including hydrogen evolution reaction (HER) catalysts. Also employed in the fabrication of nanoscale metal chalcogenides for applications in energy storage, such as lithium-ion batteries and supercapacitors. Its sulfur-rich composition makes it valuable in developing semiconductor materials and thin films for optoelectronic devices.