Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry due to its reactive bromo group, which allows for further functionalization via cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations. Its isoindolinone core is found in bioactive molecules with potential neurological and anti-inflammatory activity. Also employed in research settings to design and optimize new drug candidates.