Indole-2-carboxylic acid is widely used in the pharmaceutical industry as a key intermediate in the synthesis of various bioactive compounds. It plays a significant role in the development of drugs targeting neurological disorders, including antidepressants and antipsychotics, due to its structural similarity to neurotransmitters. Additionally, it is utilized in the production of anti-inflammatory and antimicrobial agents, contributing to the treatment of infections and inflammatory conditions. In agrochemical research, it serves as a building block for creating pesticides and herbicides, aiding in crop protection. Its versatility also extends to organic synthesis, where it is employed in the preparation of complex molecules for research and industrial applications.