Used primarily in the pharmaceutical industry as an intermediate in the synthesis of certain tricyclic antidepressants. It plays a key role in the production of active pharmaceutical ingredients that modulate neurotransmitter activity in the central nervous system. Due to its amine functional group and rigid aromatic structure, it is valuable in forming derivatives with biological activity, particularly in drugs targeting depression and neuropathic pain. The succinate salt form enhances stability and solubility, making it suitable for use in controlled laboratory synthesis of final drug products.