Used primarily in analytical chemistry as a derivatizing agent for the identification and quantification of carbonyl compounds, such as aldehydes and ketones. It reacts with these compounds to form stable hydrazone derivatives, which can be easily detected using techniques like HPLC or UV-Vis spectroscopy. Additionally, it serves as a reagent in organic synthesis for the preparation of various hydrazine derivatives. Its applications extend to biochemical research, where it aids in the study of metabolic pathways involving carbonyl-containing molecules.