Reactive dyestuffs containing the residue of 1-hydroxy-7-amino-8-(5'-amino-2',4'-disulphophenylazo)naphthalene-3,6-di sulphonic acid

A reactive dyestuff of the formula:

• ##STR11## wherein Q represents a cellulose reactive group selected from dichloro-5-cyanopyrimidinyl
• dichloro-5-nitropyrimidinyl
• trichloropyrimidinyl
• difluoro-5-chloropyrimidinyl
• difluoro-5-cyanopyrimidinyl and
• triazinyl groups of the formula:
• ##STR12## where A is selected from F, Br and Cl B is selected from F, Br, Cl, C.sub.1-4 alkoxy C.sub.1-4 alkoxy, phenoxy, sulphophenoxy, C.sub.1-4 alkylamino, C.sub.1-4 alkylamino in which the C.sub.1-4 alkyl is substituted by SO.sub.3 H, OH or CN;
• di(C.sub.1-4 alkyl) amino, di(C.sub.1-4 alkyl) amino in which one or both the C.sub.1-4 alkyl substituted by SO.sub.3 H, OH or CN;
• cyclohexylamino, morpholino, piperazino, mono-, di-, trisulphonaphthylamino or a group of the formula:
• ##STR13## where G=H, methyl, ethyl, .omega.-sulphomethyl, .beta.-carboxy-.beta.-hydroxy- or .beta.-cyanoethyl and Z and X are each independently selected from H, COOH, SO.sub.3 H, CH.sub.3, C.sub.2 H.sub.5, OC.sub.2 H.sub.5, Cl, Br, CN, NO.sub.2, NHCOCH.sub.3.