Used primarily as a precursor in organic synthesis, particularly as a masked source of 1,3-butadiene. It participates in Diels-Alder reactions, where it thermally decomposes upon heating to release butadiene and sulfur dioxide, enabling cycloaddition processes with dienophiles. This makes it valuable in the synthesis of cyclic compounds, including natural products and pharmaceuticals. It is also employed in the preparation of sulfone-containing molecules, which are important in medicinal chemistry and materials science due to their stability and electronic properties. Its role as a safe, solid alternative to gaseous butadiene enhances handling and storage in laboratory and industrial settings.