1,2-Dibromo-1,1,2,2-tetrachloroethane 1,2-Dibromotetrachloroethane 3-01-00-00190 (Beilstein Handbook Reference) 630-25-1 AI3-63171 BRN 1699471 Dbtce EINECS 211-136-7 Ethane, 1,2-dibromo-1,1,2,2-tetrachloro- sym-Dibromotetrachloroethane