Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its halogenated structure allows for selective cross-coupling reactions, making it valuable in medicinal chemistry for building complex heterocyclic compounds. Commonly employed in research settings to construct isoquinoline-based scaffolds with potential anticancer, anti-inflammatory, or antimicrobial activity. Also utilized in agrochemical research for designing novel active ingredients.