C8H8O
# C8H8O

The molecular formula $C_8H_8O$ (molar mass: 120.15 g/mol, exact mass: 120.057515 u) may refer to:

* Acetophenone
* Methylbenzaldehydes
   * 2-Methylbenzaldehyde
   * 3-Methylbenzaldehyde
   * 4-Methylbenzaldehyde
* Oxonine
* Phenylacetaldehyde
* Phthalane
* Styrene oxide
* 4-Vinylphenol
