Isoquinoline-1,3,4(2H)-trione is primarily utilized in the field of organic synthesis, where it serves as a key intermediate in the production of various biologically active compounds. Its structure is particularly valuable in the development of pharmaceuticals, including potential drugs targeting neurological disorders and cancer. Additionally, this chemical is employed in research settings to study enzyme inhibition mechanisms, especially those involving proteases and kinases, due to its ability to interact with active sites. In material science, it is explored for its potential in creating novel polymers and coatings with specific properties like UV resistance or enhanced durability. Its versatility makes it a valuable component in both industrial and academic research applications.