1-Chloroanthraquinone is an organic compound with the formula . It is one of two of monochlorinated anthraquinone isomers. The compound is prepared by direct chlorination of anthraquinone. It can also be prepared by chlorination of anthraquinone-1-sulfonic acid, sometimes called the Fischer reaction.
Heating 1-chloroanthraquinone with benzamide gives 1-benzoylaminoanthraquinone.