Tert-butyl 4-hydroxy-3,4-dihydroquinoline-1(2H)-carboxylate, commonly referred to as compound Y, is a versatile chemical compound with significant applications in pharmaceutical and material science industries. With a molecular formula of C15H21NO3, this compound features a unique quinoline scaffold substituted with a tert-butyl group and a carboxylate functionality. Its distinctive structure imparts desirable properties crucial for diverse applications, ranging from pharmaceutical synthesis to materials chemistry. As a key intermediate in organic synthesis, it serves as a foundation for the development of novel drugs and functional materials, driving innovation in various sectors.