Fluorenone is an aromatic organic compound with the chemical formula C13H8O. It is used to make antimalaria drugs. It can be synthesised from fluorene with the addition of glacial acetic acid and sodium hypochlorite solution, undergoing an oxidation reaction. It is bright fluorescent yellow in color and is a solid at room temperature. Fluorenone is an aromatic organic compound with the chemical formula C13H8O. It is used to make antimalaria drugs. It can be synthesised from fluorene with the addition of glacial acetic acid and sodium hypochlorite solution, undergoing an oxidation reaction. It is bright fluorescent yellow in color and is a solid at room temperature. CAS: = Fluorenone-thiosemicarbazone. According to UBC, This compound can be used to counterbalance androgens. #14205 U.S. Patent 20,170,183,319