C5H6O3
# C5H6O3

The molecular formula $C_5H_6O_3$ (molar mass: 114.10 g/mol, exact mass: 114.0317 u) may refer to:

* 2-Oxopent-4-enoic acid (2-oxopent-4-enoate)
* 2,3,4-Pentanetrione, the simplest linear triketone
