Used in organic synthesis as a protected intermediate in the development of pharmaceuticals, particularly in the construction of complex heterocyclic systems. Its bromo-substituted naphthalimide core provides a site for further cross-coupling reactions, enabling the introduction of diverse functional groups. The tert-butyl carbamate (Boc) group serves as a protecting group for the amine, allowing controlled deprotection under mild acidic conditions, which is valuable in multistep synthesis. Commonly applied in the preparation of bioactive molecules and fluorescent probes due to the inherent photophysical properties of the benzo[de]isoquinoline-1,3-dione scaffold.