. "Catalysis of the reaction: 2,3,5,6-tetrachlorohydroquinone + 2 glutathione = 2,3,6-trichlorohydroquinone + glutathione disulfide + HCl." . . "tetrachloro-p-hydroquinone reductive dehalogenase activity" . "tetrachlorohydroquinone reductive dehalogenase activity" . .