Phenanthren-9-amine is primarily utilized in the field of organic synthesis, where it serves as a key intermediate in the production of various complex organic compounds. Its structure makes it particularly valuable in the development of dyes and pigments, contributing to vibrant and stable colorants used in textiles and industrial applications. Additionally, it plays a role in the synthesis of pharmaceuticals, particularly in the creation of compounds with potential therapeutic properties. In research, it is often employed as a building block for studying chemical reactions and developing new materials with specific electronic or optical properties. Its applications extend to the field of materials science, where it is used in the design of organic semiconductors and other advanced materials.