2,5-Cyclohexadiene-1,4-dione, 2,5-dihydroxy- 2,5-Dihydroxy-1,4-benzoquinone 2,5-Dihydroxy-p-benzoquinone 615-94-1 AI3-23193 EINECS 210-454-3 NSC 3843 p-Benzoquinone, 2,5-dihydroxy- (8CI)