Used as an intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the preparation of certain herbicides and dyes. It serves as a derivatizing agent for carbonyl compounds in analytical chemistry, aiding in the identification of aldehydes and ketones through hydrazone formation. Also employed in research settings for the development of novel organic compounds, including heterocyclic structures. Its hydrochloride salt form enhances stability and solubility in polar solvents, facilitating its use in various reaction conditions.