1,2-Dichloro-4,5-dicyanobenzoquinone 1,4-Cyclohexadiene-1,2-dicarbonitrile, 4,5-dichloro-3,6-dioxo- 2,3,5,6-Dichlorodicyanoquinone 2,3-Dichloro-5,6-dicyanobenzoquinone 2,3-Dichloro-5,6-dicyanoquinone 2,3-Dicyano-5,6-dichlorobenzoquinone 4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile 84-58-2 DDQ Dichlorodicyano-p-benzoquinone Dichlorodicyanobenzoquinone Dichlorodicyanoquinone NSC401087