C2H4O2

C₂H₄O₂ may refer to:

Compounds sharing the molecular formula:

• Acetic acid
• Dihydroxyethene isomers:
  • 1,1-Dihydroxyethene
  • (E)-1,2-Dihydroxyethene
  • (Z)-1,2-Dihydroxyethene
• Dioxetane isomers:
  • 1,2-Dioxetane
  • 1,3-Dioxetane
• Glycolaldehyde
• Methyldioxirane
• Methyl formate
• Oxiranol