2,3,5,6-Tetrahydroxy-p-benzoquinone 2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-tetrahydroxy- 319-89-1 EINECS 206-275-5 HPEK-1 Kelox NSC 112931 TETROQUINONE THQ (VAN) Terasin Tetrahydroxy-1,4-benzoquinone Tetrahydroxy-1,4-quinone Tetrahydroxy-p-benzoquinone Tetrahydroxy-p-quinone Tetrahydroxyparabenzoquinone Tetrahydroxyquinone Tetrochinone [DCIT] Tetroquinona [INN-Spanish] Tetroquinone [USAN:INN] Tetroquinonum [INN-Latin] p-Benzoquinone, 2,3,5,6-tetrahydroxy- (8CI)