2,5-Cyclohexadiene-1,4-dione, 2,5-dichloro-3,6-dihydroxy- 2,5-Dihydroxy-3,6-dichlorobenzoquinone 87-88-7 Chloranilic acid NSC6108 p-Benzoquinone, 2,5-dichloro-3,6-dihydroxy-