.psi.-Cumohydroquinone 1,4-Benzenediol, 2,3,5-trimethyl- 2,3,5-Trimethyl-1,4-benzenediol 2,3,5-Trimethylhydroquinone 2,3,6-Trimethylhydroquinone 700-13-0 Hydroquinone, trimethyl- NSC401617 Pseudocumohydroquinone Trimethylhydroquinone