Used primarily in organic synthesis, 9-Methylene-9H-fluorene serves as a key intermediate in the production of various organic compounds. Its structure is valuable in the development of polymers and resins, particularly those requiring high thermal stability and mechanical strength. Additionally, it is employed in the creation of dyes and pigments, contributing to their colorfastness and durability. In the field of materials science, it is utilized in the fabrication of advanced materials, such as organic semiconductors, which are essential in electronic devices like OLEDs and solar cells. Its unique chemical properties also make it a candidate for research in photochemical applications and as a building block in pharmaceutical synthesis.