Synonyms: 1,4-Benzenedicarboxylicacid, 2,3,5,6-tetrachloro-, dimethyl ester (9CI);Terephthalic acid,tetrachloro-, dimethyl ester (6CI,8CI);2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid dimethyl ester;Chlorthaldimethyl ester;Chlorthal-dimethyl;Chlorthal-methyl;DAC 893;DCPA;Dac 4;Dimethyl 2,3,5,6-tetrachloroterephthalate;Dimethyltetrachloroterephthalate;NSC 155745;TCTP;Tetrachloroterephthalic aciddimethyl ester;Tetral;