Keywords: Tetrahydroxy-1,4-benzoquinone-2D-skeletal.png Skeletal formula of the tetrahydroxy-1 4-benzoquinone molecule C<sub>6</sub>H<sub>4</sub>O<sub>6</sub> Structure drawn in http //www cambridgesoft com/software/details/ ds 2 dsv 73 ChemDraw Ultra 11 0 Own 2009-07-08 Ben Mills Benjah-bmm27 Images by Ben Mills Tetrahydroxy-1 4-benzoquinone |