Used as a key intermediate in the synthesis of pharmaceuticals and functional materials, particularly in the development of conjugated polymers for organic electronics. Its aldehyde group enables easy functionalization for building complex molecular architectures, such as donor-acceptor type systems in organic semiconductors. Also employed in the preparation of fluorescent dyes and sensors due to its ability to participate in condensation reactions that yield optically active compounds. Additionally, it serves as a building block in medicinal chemistry for creating pyrrole-containing bioactive molecules with potential antimicrobial or anti-inflammatory activity.