Used as an intermediate in the synthesis of various pharmaceuticals, particularly in the production of antiviral and anticancer agents. It serves as a building block in the development of pyrimidine-based drugs due to its reactive functional groups, which allow for easy modification and incorporation into larger molecular structures. Also utilized in the preparation of dyes and functional polymers where sulfur and nitrogen heteroatoms contribute to desired electronic or structural properties. Its ability to form hydrogen bonds and coordinate with metals makes it suitable for applications in material science and catalysis.