This compound is primarily utilized in organic synthesis as a versatile intermediate for the construction of complex molecules. Its bromine substituent makes it a valuable building block in cross-coupling reactions, such as Suzuki or Sonogashira couplings, enabling the formation of carbon-carbon bonds. Additionally, the isobenzofuranone structure is often employed in the development of pharmaceuticals, particularly in the synthesis of compounds with potential biological activity. It also finds use in material science for creating specialized polymers or organic electronic materials due to its unique aromatic framework.