6-Chloro-2-oxo-2H-chromene-3-carboxylic acid is primarily utilized in the synthesis of various organic compounds, particularly in the development of pharmaceuticals and agrochemicals. Its structure serves as a key intermediate in the production of coumarin derivatives, which are known for their diverse biological activities. This compound is often employed in the creation of anticoagulant agents, anti-inflammatory drugs, and antimicrobial substances. Additionally, it finds applications in the research and development of new therapeutic agents targeting specific enzymes or receptors. Its versatility in chemical reactions makes it valuable in organic synthesis, enabling the construction of complex molecules with potential medicinal properties.