C13H10 Index of chemical compounds with the same molecular formula From Wikipedia, the free encyclopedia The molecular formula C13H10 (molar mass: 166.22 g/mol, exact mass: 166.0783 u) may refer to: Fluorene, or 9H-fluorene Phenalene This set index page lists chemical structure articles associated with the same molecular formula.If an internal link led you here, you may wish to change the link to point directly to the intended article. More information Related molecular formulas ... Related molecular formulas C13H12 C12H8 C13H10 C14H12 C13H8 Close Related Articles