C5H8O3
# C5H8O3

The molecular formula $C_5H_8O_3$ may refer to:

* Butylene carbonates
   * 1,2-Butylene carbonate
   * cis-2,3-Butylene carbonate
   * trans-2,3-Butylene carbonate
* Hydroxyethyl acrylate
* α-Ketoisovaleric acid
* α-Ketovaleric acid
* Levulinic acid
* 3-Oxopentanoic acid
* Tetrahydro-2-furoic acid
