1 1 2 2 tetrachloroethane cas no July 8, 2019 16 32 64 128 1 2 dibromo 1 1 2 2 tetrachloroethane cas no 1 1 2 2 -tetrachloroethane 1 1 2 2-tetrachloroethane-d2 1 1 2 2 tetrachloroetan
