title: C2O4
text: # C2O4
  
  The molecular formula $C_2O_4$ (molar mass: 88.02 g/mol) may refer to:
  
  * Oxalate (ethanedioate)
  * Dioxetanediones:
     * 1,2-Dioxetanedione (1,2-dioxetane-3,4-dione)
     * 1,3-Dioxetanedione (1,3-dioxetane-2,4-dione)
  