(2-Bromo-5-fluorophenyl)hydrazine is primarily used in organic synthesis as a versatile building block for the preparation of more complex chemical compounds. It serves as a key intermediate in the development of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) that target specific diseases. The compound’s structure, featuring both a hydrazine group and halogen substituents, makes it suitable for coupling reactions, cyclization processes, and the formation of heterocyclic compounds, which are often found in drug molecules. Additionally, it is utilized in the research and development of agrochemicals, where it contributes to the creation of novel pesticides or herbicides. Its reactivity and functional groups allow for modifications that can lead to the discovery of new bioactive molecules with potential applications in medicine and agriculture.