Duroquinone2,3,5,6-tetramethylcyclohexa-2,5-diene-1,4-dioneTetramethyl-p-benzoquinone2,3,5,6-Tetramethyl-1,4-benzoquinone2,3,5,6-四甲基-1,4-苯醌杜醌Duroquinone四甲基对苯醌Tetramethyl-p-benzoquinone2,3,5,6-tetramethyl-p-benzoquinone2,3,5,6-tetramethylbenzoquinoneDUROQUINONEtetramethyl-p-benzoquinone2,3,5,6-tetramethylbenzo-1,4-quinoneduroquinonetetramethyl-1,4-benzoquinone2,3,5,6-tetramethyl-1,4-benzoquinone