Anthraquinone compounds

An anthraquinone compound represented by the formula:

• ##STR163## wherein Y stands for a hydrogen atom or nitro group, Z stands for an oxygen or sulfur atom when Y stands for a hydrogen atom, but Z stands for an oxygen atom when Y stands for a nitro group, R.sub.1 stands for a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sub.3 stands for a chlorine or bromine atom or R.sub.2, wherein R.sub.2 stands for an amino, alkylamino having 1 to 4 carbon atoms, --NHCH.sub.2 COOH, --NHCH.sub.2 Ch.sub.2 CH.sub.2 OCH.sub.3, --NHCH.sub.2 CH.sub.2 OH, --NHCH.sub.2 CH.sub.2 OSO.sub.3 H, --NHCH.sub.2 CH.sub.2 SO.sub.3 H, --N(CH.sub.3).sub.2, --N(C.sub.2 H.sub.5).sub.2, --N(CH.sub.2 CH.sub.2 OH).sub.2, anilino, chloroanilino, toluidino, anisidino, phenetidino, acetoaminoanilino, monosulfoanilino, disulfoanilino, carboxyanilino, ##STR164## , alkoxy having 1 to 4 carbon atoms, --OCH.sub.2 CH.sub.2 OCH.sub.3, --OCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 OCH.sub.3, --OC.sub.2 H.sub.4 OC.sub.2 H.sub.5, --OCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3, ##STR165## phenoxy, chlorophenoxy, methylphenoxy, methoxyphenoxy, nitrophenoxy, sulfophenoxy, carboxyphenoxy, methylthio, ethylthio, butylthio, --SC.sub.2 H.sub.4 OH, phenylthio, methylphenylthio, methoxyphenylthio,
• N-methylanilino, 2-, 3- or 4- sulfo -N-methylanilino, X stands for a chlorine or bromine atom, M stands for a hydrogen,sodium or potassium atom.