1,4-Benzenediol, 2,3,5,6-tetrachloro- 2,3,5,6-Tetrachlorohydroquinone 87-87-6 Hydroquinone, tetrachloro- NSC100888 Tetrachloro p-hydroquinone Tetrachloro-p-benzohydroquinone Tetrachlorobenzoquinol Tetrachlorohydroquinone Usaf do-62 WLN: QR BG CG EG FG DQ