1,4-Benzenediol, 2,3,5,6-tetramethyl- 2,3,5,6-Tetramethylhydroquinone 527-18-4 Dihydroxydurene Duro-p-hydroquinone Durohydroquinone Hydroquinone, tetramethyl- NSC401619 Tetramethylhydroquinone