Diethylene glycol Other names: 2,2′-Oxy-bis-ethanol bis-2-(Hydroxyethyl) ether Formula: C4H10O3 CAS: 111-46-6 Weight: 106,12 g/mol Boiling point: 245 °C Melting point: -8,5 °C Density: 1,1197 g/cm3