Isochroman-3-carboxylic acid finds applications in organic synthesis and pharmaceutical research. It serves as a key intermediate in the preparation of various biologically active compounds, including potential drug candidates. Its structure is utilized in the development of molecules with therapeutic properties, such as anti-inflammatory, antimicrobial, or neuroprotective agents. Additionally, it is employed in the synthesis of complex organic frameworks for material science and chemical research. Its versatility makes it valuable in designing and optimizing novel compounds for diverse industrial and medicinal purposes.