1,2,3,10b-Tetrahydrofluoranthene is primarily used in research and development within the field of organic chemistry. It serves as a key intermediate in the synthesis of more complex polycyclic aromatic hydrocarbons (PAHs), which are studied for their potential applications in materials science. This compound is particularly valuable in the development of organic semiconductors, which are essential components in electronic devices such as organic light-emitting diodes (OLEDs) and photovoltaic cells. Additionally, its structure makes it a useful model for studying the properties and reactivity of PAHs, contributing to advancements in environmental science, particularly in understanding the behavior and degradation of such compounds in ecosystems.