C9H16O
# C9H16O

The molecular formula $C_9H_{16}O$ (molar mass: 140.22 g/mol) may refer to:

* Cyclohexylacetone
* Nonenals
   * 2-Nonenal
   * 3-Nonenal
   * 4-Nonenal
   * 5-Nonenal
   * 6-Nonenal
   * 7-Nonenal
   * 8-Nonenal
