HPEK-1, TETRAHYDROXY-1,4-QUINONE, TETRAHYDROXY BENZOQUINONE, tetrahydroxy-p-benzoquinone, 2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-tetrahydroxy-, 2,3,5,6-tetrahydroxybenzoquinone, 2,3,5,6-tetrahydroxo-1,4-benzoquinone, Kelox, 2,3,5,6-TETRAHYDROXY-1,4-BENZOQUINONE, Tetrahydroxy-p-quinone, Tetroquinone monohydrate, Terasin, tetrahydroxy-1,4-benzoquinone, TETROQUINONE