Quinoline-2-carboxylic acid is widely used in the pharmaceutical industry as a key intermediate in the synthesis of various drugs, particularly antibiotics and antimalarial agents. Its structural properties make it valuable for developing compounds with biological activity. Additionally, it serves as a building block in organic chemistry for creating complex molecules used in research and drug discovery. In agriculture, derivatives of this compound are explored for their potential as fungicides or pesticides. Its versatility also extends to material science, where it is utilized in the development of organic electronic materials and coordination polymers.