Used in the synthesis of dyes and pharmaceuticals, particularly as an intermediate in the production of local anesthetics like benzocaine and procaine. It also serves in the preparation of UV-absorbing compounds for sunscreens due to its ability to absorb ultraviolet light. In research, it acts as a building block for organic synthesis, especially in creating heterocyclic compounds. Its amphoteric nature makes it useful in developing ionic liquids and functional materials.