2-Chloro-5-hydroxybenzoic acid finds application in the synthesis of various pharmaceutical compounds, particularly as an intermediate in the production of active pharmaceutical ingredients (APIs). It is utilized in the development of drugs with antibacterial and anti-inflammatory properties, owing to its structural features that allow for effective modification and functionalization. Additionally, this compound is employed in organic synthesis for the preparation of fine chemicals and specialty compounds, where its chloro and hydroxy groups serve as reactive sites for further chemical transformations. Its role in research and development is significant, particularly in the exploration of new therapeutic agents and chemical entities.