Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a Boc-protected form of 1-(4-nitrophenyl)hydrazine, allowing selective reactions at other functional sites without interference from the hydrazine group. The tert-butyloxycarbonyl (Boc) protection enables easy deprotection under mild acidic conditions, making it valuable in multi-step synthesis. Commonly employed in the development of dyes, polymers, and bioactive molecules where controlled hydrazine reactivity is required.