Terephthalonitrile,tetrachloro- (7CI,8CI);1,4-Dicyano-2,3,5,6-tetrachlorobenzene;2,3,5,6-Tetrachloro-1,4-benzenedicarbonitrile;2,3,5,6-Tetrachloro-1,4-dicyanobenzene;2,3,5,6-Tetrachloroterephthalonitrile;Tetrachloroterephthalodinitrile;
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