{{DISPLAYTITLE:C3H8O2}} The molecular formula C3H8O2 may refer to: Dimethoxymethane 2-Methoxyethanol Propanediol 1,2-Propanediol (propylene glycol) 1,3-Propanediol (trimethylene glycol) 1,1-Propanediol (geminal diol) 2,2-Propanediol (geminal diol)