Hydroxyquinone
![2-Hydroxy-1,4-benzoquinone(Hydroxyquinone)](/Images/godic/202501/19/2-hydroxy-1,4-benzoquinone.svg5917.png")
![Tetrahydroxy-1,4-benzoquinone5-Hydroxy-1,4-naphthoquinone(Juglone)1,2-Dihydroxy-9,10-anthraquinone(Alizarin)](/Images/godic/202501/19/Tetrahydroxy-1,4-benzoquinone-2D-skeletal5917.png")
![](/Images/godic/202501/19/Juglone5918.png")
![](/Images/godic/202501/19/Alizarin_chemical_structure5918.png")
Hydroxyquinone often refers to a hydroxybenzoquinone, any organic compound with formula C
6H
4O
3 which can be viewed as a derivative of a benzoquinone through replacement of one hydrogen atom (H) by an hydroxyl group (-OH). When unqualified, the terms usually mean specifically the compound 2-hydroxy-1,4-benzoquinone, derived from 1,4-benzoquinone or para-benzoquinone (which often called just "quinone").