Used in pharmaceutical research as a key intermediate in the synthesis of bioactive molecules, particularly in the development of kinase inhibitors and anticancer agents. Its structure supports the design of compounds targeting specific enzyme pathways involved in cell proliferation. Also employed in the preparation of fluorescent probes due to its favorable photophysical properties, useful in biochemical imaging and diagnostic applications. Additionally, it serves as a building block in the creation of novel isoquinoline derivatives with potential antimicrobial and anti-inflammatory activities.