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Keywords: 527-17-3 OR GU5410000 OR DUROQUINONE OR Tetramethyl-p-benzoquinone OR Tetramethyl-1,4-benzoquinone OR 2,3,5,6-Tetramethyl-1,4-benzoquinone OR 2,3,5,6-TETRAMETHYL-2,5-CYCLOHEXADIENE-1,4-DIONE OR 2,3,5,6-tetramethylcyclohexa-2,5-diene-1,4-dione
