Used in organic synthesis, particularly in the development of pharmaceuticals and fine chemicals. It serves as an intermediate in the preparation of functionalized heterocyclic compounds, which are important in drug discovery. Its aldehyde group allows for various transformations, such as condensation reactions, enabling the construction of complex molecules. Also employed in materials science for synthesizing organic semiconductors and fluorescent dyes due to its conjugated aromatic structure. Its sulfur-containing core contributes to electron-transport properties useful in optoelectronic devices.