9,9-Dimethyl-9H-fluorene is a polycyclic aromatic hydrocarbon (PAH) compound with a molecular formula C15H14. It is derived from fluorene by the addition of two methyl groups at the 9th position, resulting in increased steric hindrance and altered chemical properties. This modification affects its solubility, reactivity, and electronic properties, making it valuable in various applications such as organic electronics, materials science, and medicinal chemistry. Understanding its synthesis, structure-property relationships, and applications is crucial for harnessing its full potential in diverse fields.