2,5-Dichloroisonicotinic acid is primarily utilized in the field of organic synthesis as a key intermediate for the production of various pharmaceutical compounds. It plays a significant role in the development of agrochemicals, particularly in the synthesis of herbicides and pesticides, due to its structural properties that enhance the efficacy of these products. Additionally, it is employed in research and development for creating novel chemical entities with potential biological activities, contributing to advancements in medicinal chemistry. Its application extends to material science, where it is used in the synthesis of specialized polymers and coatings with unique properties.