Red or bluish-red fiber-reactive monoazo compound having 7-substituted amino-1-naphthol-sulfonic acid as coupling component between the chromophore and fiber reactive portions of the compound

A monoazo compound of the following formula in a free acid form, ##STR563## wherein R.sub.1 and R.sub.2 independently of one another denote hydrogen, lower alkyl unsubstituted or substituted with hydroxy, cyano, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy, carbamoyl, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylcarbonyloxy, sulfo or sulfamoyl, R.sub.3 denotes lower alkyl unsubstituted or substituted with hydroxy, cyano, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy, carbamoyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy, carbamoyl, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylcarnoyloxy, sulfo or sulfamoyl, acetyl, propionyl, butyl, valeryl, benzoyl, or a group of the formula ##STR564## R.sub.denotes hydrogen, lower alkyl unsubstituted or substituted with hydroxy, cyano, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy, carbamoyl, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylcarbonyloxy, sulfo or sulfamoyl, and R.sub.5 denotes hydrogen or sulfo, B denotes a group of the formula, ##STR565## in which R.sub.6 is hydrogen, chlorine, sulfo, carboxyl, methyl, methoxy or ethoxy, or a group of the formula, ##STR566## X denotes chlorine, fluorine, lower alkoxy, phenoxy, unsubstituted or substituted with C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro, sulfo, carboxyl or chlorine, or a group of formula ##STR567## in which R.sub.7 and R.sub.8 independently of one another are hydrogen, lower alkyl unsubstituted or substituted with C.sub.1 -C.sub.4 alkoxy, sulfo, carboxyl, hydroxy, chlorine, phenyl, or sulfate;

• phenyl unsubstituted or substituted with C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, sulfo, carboxy or chlorine;
• naphthyl unsubstituted or substituted with hydroxy, carboxy, sulfo, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or chlorine;
• or benzyl unsubstituted or substituted with C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, sulfo chlorine;
• A denotes phenylene unsubstituted or substituted with methyl, ethyl, methoxy, ethoxy, chlorine, bromine or sulfo or naphthylene unsubstituted or substituted with sulfo, and Z denotes a group of the formula, --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Y, in which Y is a group splittable by the action of an alkali.--