.beta.,.beta.'-Dihydroxydiethyl ether 111-46-6 2,2'-0xydiethanol 2,2'-Oxybis[ethanol] 2,2'-Oxydiethanol 2,2'-Oxyethanol 2,2-Di(hydroxyethyl) ether 3-Oxa-1,5-pentanediol 3-Oxapentane-1,5-diol Bis(.beta.-hydroxyethyl) ether Bis(2-hydroxyethyl) ether Brecolane NDG DEG Deactivator E Deactivator H Dicol Diethylene glycol Digenos Diglycol Digol Dissolvant APV Ethanol, 2,2'-oxybis- Ethanol, 2,2'-oxydi- Ethylene diglycol Glycol ether Glycol ethyl ether NSC36391 TL4N WLN: Q2O2Q