4,5-dimethoxy-1,2-benzoquinone, dimethoxy-4,5 benzoquinone-1,2, 4,5-dimethoxy-o-quinone, 4,5-dimethoxy-1,1-benzoquinone, 4,5-Dimethoxy-o-benzoquinone, 4,5-dimethoxy-3,5-cyclohexadien-1,2-dione, 3,2-dione,4,5-dimethoxy, 4,5-dimethoxy-3,5-cyclohexadiene-1,2-dione