C5H8O4

The molecular formula C5H8O4 may refer to:


 * Acetolactic acid
 * 4,5-Dihydroxy-2,3-pentanedione
 * Dimethyl malonate
 * Glutaric acid
 * 4-Hydroxy-2-oxopentanoic acid
 * 2-Methylsuccinic acid
 * Xylosan