Used primarily as a building block in organic synthesis, especially in the development of advanced materials such as organic semiconductors and light-emitting diodes (OLEDs). Its rigid, bulky fluorene core enhances thermal stability and influences molecular packing in thin films, making it valuable in designing host materials for blue phosphorescent OLEDs. It is also employed in the synthesis of conjugated polymers and small molecules for organic photovoltaics due to its favorable electronic properties and ability to promote charge transport. Additionally, derivatives of this compound are explored in the preparation of covalent organic frameworks (COFs) and fluorescent sensors, where the amine group allows for further functionalization and integration into larger architectures.