Reaction catalyzed by glutathionyl-hydroquinone reductase (1.8.5.7)
+
=
glutathionyl 2-mercaptoethanyl disulfide
+
2-mercaptoethanol
+
2-(glutathione-S-yl)-trichloro-p-hydroquinone
=
glutathionyl 2-mercaptoethanyl disulfide
+
trichloro-p-hydroquinone