2-Chloro-1,4-dihydroxyanthraquinone 81-53-8 9,10-Anthracenedione, 2-chloro-1,4-dihydroxy- Anthraquinone, 2-chloro-1,4-dihydroxy- (8CI) EINECS 201-358-2 NSC 4995 Quinizarin, 2-chloro-