C5H6O
# C5H6O

The molecular formula $C_5H_6O$ (molar mass: 82.10 g/mol, exact mass: 82.0419 u) may refer to:

* Cyclopentenone, or 2-cyclopentenone
* Methylfuran
   * 2-Methylfuran
   * 3-Methylfuran
* Pyran, or oxine
