Quinoline-4-thiol, also known as 4-thioquinoline, is a versatile compound widely utilized in chemical synthesis. Its unique structure and properties make it a valuable reagent in various organic reactions. In organic chemistry, Quinoline-4-thiol is commonly employed as a nucleophile in thiol-ene reactions due to its ability to undergo addition reactions with electron-deficient alkenes. This characteristic makes it a crucial building block in the synthesis of sulfur-containing heterocycles and other complex organic compounds.Additionally, Quinoline-4-thiol is utilized in the modification of surfaces through self-assembled monolayers (SAMs) for applications in sensors and microelectronics. Its ability to form stable monolayers on various substrates makes it a desirable compound for surface functionalization in nanotechnology and materials science.Moreover, Quinoline-4-thiol has found applications in the development of fluorescent probes and dyes. Its fluorescent properties can be harnessed for bioimaging and detection of various analytes in biological systems.Overall, the versatile nature of Quinoline-4-thiol makes it a valuable tool in chemical synthesis, surface modification, and materials science, showcasing its importance in diverse fields of research and technological applications.