1,2-Diaethoxy-1,1,2,2-tetrachloraethan [German] 1,2-Diethoxy-1,1,2,2-tetrachloroethane 4-02-00-01854 (Beilstein Handbook Reference) 63938-37-4 BRN 1751750 Ethane, 1,2-diethoxy-1,1,2,2-tetrachloro-