Used as an intermediate in the synthesis of fluorescent dyes and optoelectronic materials. Its bromine and hydrazine functional groups allow for selective coupling reactions, making it valuable in the preparation of naphthalene-based fluorophores. Commonly employed in the development of sensors, organic semiconductors, and conjugated polymers due to its ability to enhance electron transport and light emission properties. Also utilized in pharmaceutical research for constructing nitrogen-containing heterocycles through cyclization reactions.