Benzo[d][1,2,3]thiadiazole is primarily used in the field of agriculture as a plant activator. It helps in inducing systemic acquired resistance (SAR) in plants, enabling them to defend against a wide range of pathogens such as bacteria, viruses, and fungi. By enhancing the plant's natural defense mechanisms, it reduces the need for traditional pesticides, promoting sustainable farming practices. Additionally, it is utilized in organic synthesis as a building block for creating more complex chemical compounds, particularly in the development of pharmaceuticals and agrochemicals. Its unique structure also makes it valuable in research for studying heterocyclic chemistry and developing new materials with potential applications in electronics and photochemistry.