2-Allylaniline Hydrochloride is primarily used in organic synthesis as an intermediate for the production of various chemical compounds. It plays a significant role in the development of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) that require aniline derivatives. Additionally, it is utilized in the preparation of dyes and pigments, where its structure contributes to the formation of complex colorants. In research, it serves as a building block for creating novel organic molecules, aiding in the study of chemical reactions and material properties. Its application extends to the field of polymer chemistry, where it is involved in the synthesis of specialized polymers with unique characteristics.