.alpha.-Chloroanthraquinone .alpha.-Monochloroanthraquinone 1-Chloranthrachinon (czech).alpha.-chloroanthraquinone 1-Chloro-9,10-anthraquinone 1-Chloroanthraquinone 82-44-0 9,10-Anthracenedione, 1-chloro- Anthraquinone, 1-chloro- NSC5138 WLN: L C666 BV IVJ DG